{"id":3717,"date":"2024-12-05T14:20:51","date_gmt":"2024-12-05T05:20:51","guid":{"rendered":"https:\/\/www.jcam-agri.co.jp\/wordpress\/?post_type=agriculture_science&p=3717"},"modified":"2026-06-11T16:52:25","modified_gmt":"2026-06-11T07:52:25","slug":"%e7%ac%ac756%e5%8f%b7%e3%80%802023-r05-12%e7%99%ba%e8%a1%8c-2","status":"publish","type":"agriculture_science","link":"https:\/\/www.jcam-agri.co.jp\/en\/agriculture_science\/\u7b2c756\u53f7\u30002023-r05-12\u767a\u884c-2\/","title":{"rendered":"\u7b2c756\u53f7\u30002023(R05).12\u767a\u884c"},"content":{"rendered":"

\u00a7 Growth of Chinese cabbage and nitrogen application
Former Toyama Prefectural Agricultural Technology Center
\u677e\u672c\u3000\u7f8e\u679d\u5b50<\/a>
\u00a7\u571f\u306e\u306f\u306a\u3057\uff0d\u7b2c27\u56de\u8fb2\u696d\u3068\u74b0\u5883\u554f\u984c\uff0d\u305d\u306e\uff12
\u8fb2\u5730\u7531\u6765\u306e\u7a92\u7d20\u306b\u3088\u308b\u6c34\u8cea\u6c5a\u6fc1
\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e
\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f
\u677e\u4e2d\u3000\u7167\u592b<\/a>
\u00a72023 General Table of Previous Editions of this Journal<\/a><\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Growth of Chinese cabbage and nitrogen application<\/h2>\n\n\n\n

Former Toyama Prefectural Agricultural Technology Center
\u677e\u672c\u3000\u7f8e\u679d\u5b50<\/p>\n\n\n\n

Introduction.<\/h3>\n\n\n\n

\u3000The objective of vegetable cultivation technology is to ensure a stable and abundant harvest of high quality vegetables. Here, we examined fertilization and cultivation methods for Chinese cabbage, an autumn\/winter vegetable.<\/p>\n\n\n\n

\u3000\u30cf\u30af\u30b5\u30a4\u306f\u304b\u3064\u3066\u4e00\u682a\u58f2\u308a\u304c\u4e00\u822c\u7684\u3067\u3042\u308a\uff0c\u91cd\u304f\u3066\u5927\u304d\u3044\u3053\u3068\u304c\u554f\u984c\u3067\u3042\u3063\u305f\u304c\uff0c\uff12\uff5e\uff14\u5206\u5272\u58f2\u308a\u304c\u666e\u901a\u306b\u306a\u3063\u305f\u4eca\u65e5\u3067\u306f\uff0c\uff12\uff5e\uff13kg\/\u682a\u7a0b\u5ea6\u306e\u5927\u682a\u53ce\u7a6b\u304c\u4e00\u822c\u7684\u306b\u306a\u3063\u305f\u3002\u54c1\u8cea\u306b\u3064\u3044\u3066\u306f\uff0c\u5546\u54c1\u4fa1\u5024\u3092\u8457\u3057\u304f\u4f4e\u4e0b\u3055\u305b\u308b\u30b4\u30de\u75c7\u306e\u767a\u751f\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u554f\u984c\u3067\u3042\u3063\u305f\u3002\u305d\u3053\u3067\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u65bd\u80a5\u65b9\u6cd5\u3092\u691c\u8a0e\u3057\u305f\u3002\u306a\u304a\uff0c\u3053\u3053\u3067\u306f\uff0c\u65e9\u751f\u54c1\u7a2e\uff0860\u65e5\u30bf\u30a4\u30d7\uff09\u3092\u8abf\u67fb\u7528\u306b\u7528\u3044\u305f\u3002<\/p>\n\n\n\n

Growth progress of Chinese cabbage<\/h3>\n\n\n\n

\u3000The former synthesizes sugars and amino acids and translocates them near the stem apex (growth point), resulting in the enlargement of the tuber. Therefore, it is necessary to grow the outer leaves, which are photosynthetic organs, large enough in the early stage to maintain the photosynthetic function until harvest. In other words, the fertilizer application method should focus on basal fertilizer, but it is important to ensure that fertilizer does not run out until the time of harvest.<\/p>\n\n\n\n

\u3000In Figure 1, leaf position is shown as logarithmic, with the leaf that initiates tuberization as 1.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000\u5206\u5316\u3057\u59cb\u3081\u306e\u8449\u306f\uff0c\u305d\u306e\u5f8c\u5f90\u3005\u306b\u5927\u304d\u304f\u306a\u308a\uff08\u672a\u6210\u719f\u8449)\uff0c\u5927\u304d\u3055\u304c\u4e00\u5b9a\u306b\u306a\u308b\uff08\u6210\u719f\u8449)\u3002\u672a\u6210\u719f\u8449\u304b\u3089\u6210\u719f\u8449\u306b\u5909\u5316\u3059\u308b\u8449\u4f4d\u3092\u5909\u66f2\u70b9\u3068\u3057\uff0c\u2193\u3067\u793a\u3057\u305f\u3002\u306a\u304a\uff0c\u7d50\u7403\u8449\u306f\uff13\/\uff15\u8449\u5e8f\u3067\u56de\u8ee2\u3057\uff0c\u5f90\u3005\u306b\u5927\u304d\u304f\u306a\u308b\u3002<\/p>\n\n\n\n

\u3000If the plot of leaf weight deviates from the \"straight line showing the relationship between leaf position and leaf weight (Figure 1)\" for mature leaves, the nitrogen supply at the time of leaf maturity is insufficient, and if it deviates above the straight line, the nitrogen supply was excessive. If these changes in leaf weight are observed, the amount and timing of basal and supplemental fertilizer should be adjusted.<\/p>\n\n\n\n

\u3000\u6b21\u306b\uff0c\u8449\u4f4d\u306e\u5bfe\u6570\u8868\u793a\u3092\u89e3\u9664\u3057\u3066\uff0c\u5b9a\u690d30\u65e5\uff0c45\u65e5\uff0c60\u65e5\u76ee\u306e\u8449\u91cd\u3068\u30b4\u30de\u75c7\u767a\u751f\u7a0b\u5ea6\u3092\u56f3\uff12\u306b\u793a\u3057\u305f\u3002\u307e\u305f\uff0c\u540c\u4e00\u8a66\u6599\u3092\u7528\u3044\uff0c\u4e3b\u8108\u3068\u8449\u8eab\u306b\u5206\u3051\u3066\uff0c\u305d\u308c\u305e\u308c\u306e\u785d\u9178\u614b\u7a92\u7d20\u6fc3\u5ea6\u3092\u56f3\uff13\u306b\u793a\u3057\u305f\uff08\u88dc\u8db3\u8cc7\u6599\uff11)\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000Here, sesamoidosis newly occurring on immature leaves was defined as a type 1 outbreak, while sesamoidosis with reemerging outbreaks on mature leaves was defined as a type 2 outbreak.<\/p>\n\n\n\n

\u3000In Figures 2 and 3, leaf position is indicated as an integer. In Figures 2 and 3, the relationship between leaf position and leaf weight is shown as an inflection point \u2193, as in Figure 1, because differences were observed in the relationship between mature and immature leaves.<\/p>\n\n\n\n

\u3000Leaf weight and degree of sesamosis incidence were examined on two plants each at 30, 45, and 60 days after planting (Figure 2). At 60 days after planting, the incidence of sesamosis increased significantly at leaf positions 25 to 45 (type 2). This type 2 sesamosis occurred at the inner leaf level below the inflection point.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000In Figure 3, nitrate nitrogen concentrations in the main veins and leaf blades were investigated using the material in Figure 2. In all the sections, the concentration in the main vein was higher than that in the leaf blade, and a concentration peak was observed in the main vein about 10 leaves inside from the inflection point, which almost coincided with the initiation site of type 1 development. It was thought that nitrate-nitrogen was supplied simultaneously with water to the immature leaves as they grew larger, and that this was related to the occurrence of type 1 sesame seed disease.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

Scene at the time of harvesting Chinese cabbage.<\/h3>\n\n\n\n

\u3000\u3044\u305a\u308c\u306e\u54c1\u7a2e\u3082\u5927\u682a\u307b\u3069\u30b4\u30de\u75c7\u306e\u767a\u751f\u306f\u591a\u3044\u304c\uff0c\u3053\u3046\u3057\u305f\u50be\u5411\u306f\uff0c\u591a\u767a\u751f\u54c1\u7a2e\u3067\u3088\u308a\u9855\u8457\u3067\u3042\u3063\u305f\uff08\u56f3\uff14)\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000\u30b4\u30de\u75c7\u591a\u767a\u751f\uff08\u25cf\uff09\u53ca\u3073\u5c11\u767a\u751f\uff08\u25cb\uff09\u54c1\u7a2e\u306b\u3064\u3044\u3066\uff0c\u682a\u91cd\u306e\u7570\u306a\u308b\u30cf\u30af\u30b5\u30a4\uff19\u682a\u3092\u63a1\u53d6\u3057\uff0c\u5168\u91cd\uff0c\u5916\u8449\u91cd\u3068\u7d50\u7403\u91cd\u3092\u6e2c\u5b9a\u3057\u305f\u3002\u56f3\uff15\u306b\u793a\u3059\u3068\u304a\u308a\uff0c\u4e21\u54c1\u7a2e\u3068\u3082\u5927\u682a\u307b\u3069\u7d50\u7403\u91cd\u306b\u5bfe\u3059\u308b\u5916\u8449\u91cd\u306e\u5272\u5408\u304c\u5c11\u306a\u304f\uff0c\u3053\u3046\u3057\u305f\u50be\u5411\u306f\u591a\u767a\u751f\u54c1\u7a2e\u3067\u3088\u308a\u9855\u8457\u3067\u3042\u3063\u305f\u3002\u3059\u306a\u308f\u3061\uff0c\u5927\u682a\u307b\u3069\u7d50\u7403\u306b\u4f9b\u7d66\u3059\u308b\u7269\u8cea\u751f\u7523\u529b\u304c\u52a3\u308b\u3068\u8a00\u3048\u308b\u3002\u5703\u5834\u3092\u57fa\u80a5\u7a92\u7d20\u65bd\u7528\u91cf10\uff0c20\uff0c30kg\/10a\u306e\uff13\u7a2e\u985e\u306b\u533a\u5206\u3057\u305f\uff08\uff13\u53cd\u5fa9)\u3002\u8ffd\u80a5\u7a92\u7d20\u91cf\u306f\uff0c\u5b9a\u690d\u5f8c20\uff0c30\uff0c40\u65e5\u76ee\u306b\u3044\u305a\u308c\u3082\uff15kg\/10a\u3092\u65bd\u7528\u3057\u305f\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000The results showed that the higher the amount of nitrogen applied, the heavier the plants were and the more sesamosis occurred (Figure 6). Even when plant weights were the same, the incidence of sesamosis was greater with higher amounts of base fertilizer nitrogen. This indicated that not only heavier plants but also higher nitrogen absorption was significantly related to higher incidence of sesamosis.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

Histochemical changes in the development of sesamoidosis<\/h3>\n\n\n\n

\u3000The morphological change process at the site of sesamoid development is shown in A-D.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\uff21<\/strong>\u3000\u30b4\u30de\u75c7\u306f\uff0c\u4e3b\u3068\u3057\u3066\u7d50\u7403\u8449\u306e\u4e3b\u8108\u8868\u5c64\uff08\u7d50\u7403\u306e\u5185\u5074\uff09\u306b\u767a\u751f\u3059\u308b\u3002
\u3000\u30bf\u30a4\u30d7\uff11\u306e\u30b4\u30de\u75c7\u306f\uff0c\u672a\u6210\u719f\u8449\u306e\u4e3b\u8108\u306b\u785d\u9178\u614b\u7a92\u7d20\u304c\u904e\u5270\u306b\u4f9b\u7d66\u3055\u308c\u308b\u8449\u306b\u767a\u751f\u3057\uff0c\u30bf\u30a4\u30d7\uff12\u306f\uff0c\u53ce\u7a6b\u671f\u306b\u8449\u4f4d25\u304b\u308945\u306e\u4e3b\u8108\u306b\u8457\u3057\u304f\u767a\u751f\u3057\u305f\uff08\u56f3\uff12)\u3002\u30bf\u30a4\u30d7\uff12\u306f\uff0c\u8868\u76ae\u7d30\u80de\u306e\u539f\u5f62\u8cea\u6fc3\u5ea6\u304c\u4f4e\u4e0b\u3059\u308b\u3068\uff0c\u9846\u7c92\u5185\u6fc3\u5ea6\u306f\u76f8\u5bfe\u7684\u306b\u9ad8\u304f\u306a\u308a\uff0c\u6c34\u5206\u304c\u4f9b\u7d66\u3055\u308c\u308b\u3068\u9846\u7c92\u304c\u80a5\u5927\u3059\u308b\u3002\u9846\u7c92\u80a5\u5927\u5468\u8fba\u306b\uff0c\u30a2\u30be\u8a66\u85ac\u3082\u3057\u304f\u306f\u30a2\u30f3\u30e2\u30cb\u30a2\u3092\u5782\u3089\u3059\u3068\u9ec4\u7dd1\u8272\u306b\u306a\u308a\uff0c\u30af\u30ed\u30ed\u30b2\u30f3\u9178\uff08\u30d5\u30a7\u30ce\u30fc\u30eb\uff09\u306e\u5b58\u5728\u304c\u793a\u3055\u308c\u305f\u3002<\/p>\n\n\n\n

\uff22<\/strong>\u3000\u7d30\u80de\u5185\u9846\u7c92\u304c\u80a5\u5927\u3059\u308b\u7bc4\u56f2\u304c\u6b21\u7b2c\u306b\u62e1\u5927\u3057\uff0c\u6838\u3082\u80a5\u5927\u3059\u308b\u3002\u305d\u306e\u7bc4\u56f2\u306f\u30b9\u30eb\u30d5\u30a1\u30cb\u30fc\u30eb\u9178\u8a66\u85ac\u306b\u3088\u308a\u71c8\u9ec4\u8272\u306b\u53cd\u5fdc\u3057\uff0c\u30dd\u30ea\u30d5\u30a7\u30ce\u30fc\u30eb\u306e\u5b58\u5728\u304c\u793a\u3055\u308c\uff0c\u3055\u3089\u306b\u7d30\u80de\u58c1\u306e\u4e00\u90e8\u304c\u8910\u8272\u306b\u5909\u5316\u3057\u305f\uff08\u8868\uff11)\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\uff23<\/strong>\u3000\u9846\u7c92\u306e\u80a5\u5927\u304c\u591a\u304f\u8a8d\u3081\u3089\u308c\uff0c\u7d30\u80de\u58c1\u306e\u8910\u5909\u90e8\u5206\u304c\u62e1\u5927\u3059\u308b\u3068\u540c\u6642\u306b\uff0c\u5468\u8fba\u306e\u7d30\u80de\u306b\uff0c\u539f\u5f62\u8cea\u5206\u96e2\u304c\u8a8d\u3081\u3089\u308c\u308b\u3002\u30dd\u30ea\u30d5\u30a7\u30ce\u30fc\u30eb\u306e\u5206\u5e03\u7bc4\u56f2\u304c\u5927\u304d\u304f\u306a\u308b\u306b\u5f93\u3044\uff0c\u30a2\u30b9\u30b3\u30eb\u30d3\u30f3\u9178\u306e\u5206\u5e03\u304c\u5c11\u306a\u304f\u306a\u308a\uff0c\u5468\u8fba\u306b\uff0c\u7d30\u80de\u5185\u9846\u7c92\u306e\u80a5\u5927\u304c\u8a8d\u3081\u3089\u308c\u305f\u3002\u306a\u304a\uff0c\u7a92\u7d20\u304c\u591a\u3059\u304e\u3066\u7cd6\u5206\u304c\u5c11\u306a\u304f\u306a\u308b\u3068\u30dd\u30ea\u30d5\u30a7\u30ce\u30fc\u30eb\u306e\u9084\u5143\u304c\u963b\u5bb3\u3055\u308c\u308b\uff08\u8868\uff11\uff0c\uff12)\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\uff24<\/strong>\u3000\uff13\uff5e\uff16\u500b\u306e\u7d30\u80de\u58c1\u304c\u5168\u9762\u8910\u5909\u3057\uff0c\u305d\u306e\u5468\u8fba\u306e\u7d30\u80de\u306f\u5168\u3066\u539f\u5f62\u8cea\u5206\u96e2\u3092\u8d77\u3053\u3057\u305f\u3002\u539f\u5f62\u8cea\u5206\u96e2\u306b\u3088\u308a\u5468\u56f2\u306e\u7d30\u80de\u3068\u306e\u9023\u7d61\u304c\u4e0d\u53ef\u80fd\u306b\u306a\u308b\u3053\u3068\u304b\u3089\uff0c\u8910\u5909\u7d30\u80de\u304c\u5897\u3048\u308b\u3053\u3068\u306f\u306a\u304f\uff0c\u30b4\u30de\u72b6\u306e\u6591\u70b9\u3068\u306a\u3063\u305f\u3002<\/p>\n\n\n\n

Effect of increased nitrogen fertilization on total sugar and ascorbic acid content<\/h3>\n\n\n\n

\u3000\u7a92\u7d20\u65bd\u7528\u91cf\u304c\u591a\u304f\u306a\u308b\u306b\u5f93\u3044\uff0c\u7d50\u7403\u8449\u306b\u5bfe\u3059\u308b\u5916\u8449\u306e\u5272\u5408\u306f\u5c11\u306a\u304f\u306a\u308a\uff08\u56f3\uff15)\uff0c\u785d\u9178\u614b\u7a92\u7d20\u542b\u91cf\u304c\u591a\u304f\uff0c\u5168\u7cd6\u542b\u91cf\u304c\u4e0d\u8db3\u3059\u308b\u50be\u5411\u304c\u3042\u308b\uff08\u8868\uff11)\u3002<\/p>\n\n\n\n

\u3000When nitrogen application is reduced over the entire period, the ratio of outer leaf weight to tuber weight increases, resulting in a higher sugar supply to the main vein. Since sugar (glucose) is a precursor of ascorbic acid (Table 2), it is considered that the polyphenol (brown) changes to phenol (colorless) when nitrogen application is reduced, and the incidence of sesame disease is relatively low.<\/p>\n\n\n\n

\u3000Concerning ascorbic acid at 55 days after planting in Table 2, the decrease in concentration at tuber leaf level 11 to 30, where the incidence of sesameosis is highest in the 20 and 30 kg\/10a basal fertilizer treatments, was considered to be due to its use to change from polyphenols to phenols. The fact that the concentration did not decrease in the 10 kg\/10a nitrogen-applied area, where the incidence of sesame seed disease is low, was considered to be due to the low incidence of sesame seed disease. A slight decrease was observed at leaf level 11 to 20 on the tuber leaf at 45 days after planting, but it was not extreme.<\/p>\n\n\n\n

\u7a92\u7d20\u65bd\u7528\u91cf\u306e\u5897\u52a0\u304c\u7d30\u80de\u304b\u3089\u306eK\u207a\u6f0f\u51fa\u306b\u53ca\u307c\u3059\u5f71\u97ff<\/h3>\n\n\n\n

\u3000\u7d50\u7403\u958b\u59cb\u8449\u4f4d\uff11\u304b\u308910\u679a\u3054\u3068\u306b\u533a\u5206\u3057\uff0c\u5404\u533a\u306e\u4e3b\u8108\u7d44\u7e54\u7247\u304b\u3089\u306eK\u207a\u6f0f\u51fa\u3092\u8abf\u67fb\u3057\u305f\uff08\u88dc\u8db3\u8cc7\u6599\uff12)\u3002\u306a\u304a\uff0cK\u207a\u6f0f\u51fa\u91cf\u306e\u5897\u52a0\u306f\uff0c\u7d30\u80de\u819c\u306e\u5f31\u4f53\u5316\uff0c\u8001\u5316\u306b\u3088\u308a\u8d77\u304d\u308b\u3068\u5831\u544a\u3055\u308c\u3066\u3044\u308b\uff08\u8fb0\u5df3\u3089)\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000\u3053\u3053\u3067\u306f\uff0c\u7d50\u7403\u958b\u59cb\u306b\u8fd1\u3044\u8449\uff08\u8449\u4f4d\uff11\uff5e10)\uff0c\u30b4\u30de\u75c7\u306e\u767a\u751f\u306e\u591a\u3044\u8449\u3067K\u207a\u6f0f\u51fa\u91cf\u304c\u591a\u304f\u306a\u3063\u305f\uff08\u8868\uff13)\u3002\u7d50\u7403\u958b\u59cb\u306b\u8fd1\u3044\u8449\u306f\u5927\u578b\u3067\uff0c\u7d30\u80de\u3082\u5927\u304d\u304f\uff0c\u7a92\u7d20\u6fc3\u5ea6\u3082\u9ad8\u304f\uff08\u56f3\uff12\uff09\u30a8\u30a4\u30b8\u304c\u9032\u3093\u3067\u3044\u308b\u306e\u3067\uff0cK\u207a\u6f0f\u51fa\u91cf\u304c\u591a\u304f\u306a\u3063\u305f\u3068\u8003\u3048\u3089\u308c\u305f\u3002\u305d\u306e\u305f\u3081\uff0c\u6c34\u5206\u304c\u4f9b\u7d66\u3055\u308c\u308b\u3054\u3068\u306b\u7d30\u80de\u5185\u306e\u539f\u5f62\u8cea\u6fc3\u5ea6\u304c\u8584\u304f\u306a\u308a\uff0c\u9846\u7c92\u5185\u6eb6\u6db2\u6fc3\u5ea6\u3068\u306e\u5dee\u7570\u304c\u5927\u304d\u304f\u306a\u308b\u306e\u3067\uff0c\u9846\u7c92\u5185\u5916\u306e\u6eb6\u6db2\u6fc3\u5ea6\u3092\u7b49\u3057\u304f\u3059\u308b\u305f\u3081\u9846\u7c92\u304c\u80a5\u5927\u3057\uff0c\u30b4\u30de\u75c7\u306e\u767a\u751f\u304c\u591a\u304f\u306a\u3063\u305f\u3068\u601d\u308f\u308c\u308b\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

References<\/h3>\n\n\n\n

\u25cf\u8fb0\u5df3\u4fdd\u592b\u30fb\u5ca9\u672c\u5149\u5b8f\u30fb\u9813\u7530\u5353\u592b 1981\uff0e\u30a6\u30ea\u79d1\u679c\u5b9f\u306e\u4f4e\u6e29\u969c\u5bb3\u3068\u679c\u5b9f\u7d44\u7e54\u7247\u304b\u3089\u306e\u30a4\u30aa\u30f3\u6f0f\u51fa\u306b\u3064\u3044\u3066
\u3000\u5712\u5b66\u96d1 50\uff1a108-113<\/p>\n\n\n\n

\u25cf\u8c37 \u5229\u4e00 1965\uff0e\u30ab\u30ad\u70ad\u75bd\u75c5\u306e\u75c5\u614b\u751f\u7406\u5b66\u7684\u7814\u7a76\uff0c\u7279\u306b\u7f79\u75c5\u679c\u5b9f\u306e\u75c5\u614b\u767a\u73fe\u306b\u3042\u305a\u304b\u308b\u30da\u30af\u30c1\u30f3\u8cea\u5206\u89e3\u9175\u7d20\u306e\u5f79\u5272\u3000\u9999\u5ddd\u5927\u8fb2\u7d00\u8981 18\uff1a1-81<\/p>\n\n\n\n

\u25cf\u8c4a\u7530 \u6804\u30fb\u9234\u6728\u76f4\u6cbb 1957\uff0e\u7a32\u71b1\u75c5\u6591\u306e\u7d44\u7e54\u79d1\u5b66\u7684\u7814\u7a76 \uff13 \u75c5\u6591\u5468\u8fba\u306e\u547c\u5438\u306b\u3064\u3044\u3066\u3000\u65e5\u690d\u75c5\u5831 22\uff1a173-177<\/p>\n\n\n\n

\u25cf\u677e\u672c\u7f8e\u679d\u5b50 1987\uff0e\u7a92\u7d20\u8ffd\u80a5\u65b9\u6cd5\u304a\u3088\u3073\u8caf\u8535\u65b9\u6cd5\u304c\u53ce\u7a6b\u5f8c\u306e\u30cf\u30af\u30b5\u30a4\u30b4\u30de\u75c7\u306e\u767a\u751f\u306b\u53ca\u307c\u3059\u5f71\u97ff\u3000\u5bcc\u5c71\u8fb2\u6280\u30bb\u7814\u5831 1\uff1a17-23<\/p>\n\n\n\n

\u25cf\u677e\u672c\u7f8e\u679d\u5b50 1988\uff0e\u30cf\u30af\u30b5\u30a4\u30b4\u30de\u75c7\u306e\u767a\u751f\u3068\u305d\u306e\u9632\u6b62\u6cd5\u306b\u95a2\u3059\u308b\u7814\u7a76\uff08\uff11\uff09\u3000\u30b4\u30de\u75c7\u767a\u751f\u4e2d\u306e\u5f62\u614b\u53ca\u3073\u7d44\u7e54\u5316\u5b66\u7684\u89b3\u5bdf\u3000\u5712\u5b66\u96d1 57\uff1a206-214<\/p>\n\n\n\n

\u25cf\u677e\u672c\u7f8e\u679d\u5b50 1990\uff0e\u30cf\u30af\u30b5\u30a4\u30b4\u30de\u75c7\u306e\u767a\u751f\u306b\u304a\u3051\u308b\u57fa\u80a5\u7a92\u7d20\u65bd\u7528\u91cf\u306e\u5f71\u97ff\u3000\u571f\u80a5\u8a8c 61\uff1a345-352<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

No Soil - No. 27 Agriculture and Environmental Issues - Part 2
\u8fb2\u5730\u7531\u6765\u306e\u7a92\u7d20\u306b\u3088\u308b\u6c34\u8cea\u6c5a\u6fc1<\/h2>\n\n\n\n

\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e
\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f
\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\u3000As mentioned in the previous article, Japan's food self-sufficiency rate is low, so large amounts of crop nutrients such as nitrogen (N) contained in imported food and livestock feed are brought in from overseas. When large amounts of nutrients are brought into livestock farms in the form of feed and fertilizer, the nutrient cycle in the farm from soil to feed to livestock is disrupted, and nutrients are leaked into the surrounding environment. Among nutrients, N has a particularly negative impact on the environment. Even for arable farmers, when the amount of N brought into the farmland from outside exceeds the holding capacity of the soil, N is leaked into the surrounding environment. When N reaches rivers and groundwater, it causes water pollution, and when it reaches the atmosphere, it causes air pollution and contaminates the environment.<\/p>\n\n\n\n

\u3000In this issue, we will consider water pollution among the environmental pollution caused by N discharged from agricultural land. Air pollution will be discussed in the next issue.<\/p>\n\n\n\n

1. eutrophication caused by water pollution<\/h3>\n\n\n\n

\u3000Sources of substances that adversely affect rivers, lakes, marshes, and other bodies of water through groundwater and surface runoff can be broadly classified into two categories: point sources (specific sources), which can be identified, and areal sources (non-specific sources), which cannot. Point sources (specific sources) and non-specific sources (non-specific sources). In addition to N, other substances such as phosphorus (P) and organic substances are discharged from these sources and cause water pollution.<\/p>\n\n\n\n

\u3000\uff2e\u306f\u901a\u5e38\u30a2\u30f3\u30e2\u30cb\u30a2\u614bN\uff08NH4<\/sub>\u207a\uff0dN\uff09\u306e\u5f62\u614b\u3067\u8fb2\u5730\u306b\u4e0e\u3048\u3089\u308c\u308b\u3002\u4e0e\u3048\u3089\u308c\u305fNH4<\/sub>\u207a\uff0dN\u306f\uff0c\u571f\u306e\u5fae\u751f\u7269\u306b\u3088\u3063\u3066\u785d\u5316\u4f5c\u7528\u3092\u53d7\u3051\uff0c\u8ca0\u8377\u96fb\u30a4\u30aa\u30f3\u306e\u785d\u9178\u614bN\uff08NO3<\/sub>\u207b\uff0dN\uff09\u306b\u5909\u5316\u3059\u308b\u3002\uff30\u3082\u901a\u5e38\u306f\uff0c\u8ca0\u8377\u96fb\u306e\u30ea\u30f3\u9178\u4e8c\u6c34\u7d20\u30a4\u30aa\u30f3\uff08H2<\/sub>PO4<\/sub>\u207b\uff09\u3068\u3057\u3066\u571f\u306b\u5b58\u5728\u3059\u308b\u3002\u3064\u307e\u308a\uff2e\u3084\uff30\u306e\u5f62\u614b\u306f\u3044\u305a\u308c\u3082\u8ca0\u8377\u96fb\u306e\u30a4\u30aa\u30f3\u3067\u3042\u308b\u305f\u3081\uff0c\u571f\u304c\u6301\u3064\u8ca0\u8377\u96fb\u3068\u53cd\u767a\u3057\u3042\u3063\u3066\u571f\u306b\u4fdd\u6301\u3055\u308c\u306b\u304f\u3044\u3002\u305d\u308c\u3086\u3048\uff0c\uff2e\u3084\uff30\u306f\u6cb3\u5ddd\u3084\u5730\u4e0b\u6c34\u306b\u6d41\u51fa\u3057\u3084\u3059\u304f\uff0c\u74b0\u5883\u6c5a\u67d3\u7269\u8cea\u306b\u306a\u308a\u3084\u3059\u3044\u3002<\/p>\n\n\n\n

\u3000As they flow into lakes and rivers, their concentration increases and nutrients become enriched (this is called eutrophication). When eutrophication occurs, phytoplankton and planktonic cyanobacteria can bloom abnormally and cover the water surface as if green paint had been poured (Figure 1). This is the end point of water pollution.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

2. sources of environmental pollutants<\/h3>\n\n\n\n

\u3000(1) Point source contamination<\/h4>\n\n\n\n

\u3000\u5178\u578b\u7684\u306a\u70b9\u6e90\u6c5a\u67d3\u3068\u3057\u3066\u306f\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4f8b\u304c\u3042\u308b\u3002\u3059\u306a\u308f\u3061\uff0c\u725b\u820e\uff0c\u8c5a\u820e\uff0c\u9d8f\u820e\u306a\u3069\u306e\u5468\u8fba\u3084\u5de5\u5834\uff0c\u4e0b\u6c34\u51e6\u7406\u5834\u306a\u3069\u306e\u8fd1\u304f\u3092\u901a\u904e\u3057\u305f\u6cb3\u5ddd\u306e\uff2e\u6fc3\u5ea6\u306e\u4e0a\u6607\uff0c\u3042\u308b\u3044\u306f\uff0c\u7d20\u6398\u308a\u3075\u3093\u5c3f\u3060\u3081\uff08\u30e9\u30b0\u30fc\u30f3\uff09\u306b\u8caf\u7559\u3057\u305f\u3075\u3093\u5c3f\u6df7\u5408\u7269\u7531\u6765\uff2e\u306b\u3088\u308b\u5730\u4e0b\u6c34\u306e\u6c5a\u6fc1\uff0c\u3055\u3089\u306b\uff0c\u653e\u7267\u5bb6\u755c\u304c\u6c34\u98f2\u307f\u5834\u3068\u3057\u3066\u5c0f\u6cb3\u5ddd\u3092\u5229\u7528\u3059\u308b\u6642\uff0c\u6cb3\u5ddd\u306b\u76f4\u63a5\u3075\u3093\u5c3f\u3092\u6392\u6cc4\u3059\u308b\u3053\u3068\u306a\u3069\u3067\u3042\u308b\u3002\u755c\u7523\u95a2\u9023\u65bd\u8a2d\u8fd1\u304f\u306e\u4e95\u6238\u6c34\u306eNO3<\/sub>\u207b\uff0dN\u6fc3\u5ea6\u304c\u98f2\u7528\u57fa\u6e96\uff08\uff11\u30ea\u30c3\u30c8\u30eb\u5f53\u305f\u308a10mg\uff09\u3092\u4e0a\u56de\u308b\u3068\u3044\u3046\u5404\u5730\u306e\u4e8b\u4f8b\u306f\uff0c\u70b9\u6e90\u6c5a\u67d3\u306e\u5b9f\u4f8b\u3067\u3042\u308b\u3002<\/p>\n\n\n\n

\u3000(2) Surface source pollution<\/h4>\n\n\n\n

\u3000Agricultural land, together with forests and urban areas, is treated as an expanse of land, i.e., a surface source. Pollution caused by areal sources is called areal source pollution. Because the source of this pollution is not specified, it is difficult to quantitatively determine where environmental pollutants originate and to what extent they are discharged into groundwater, rivers, and lakes. However, as the number of livestock per unit catchment area increases, the N concentration in river water increases because the amount of N released increases with the number of livestock (Figure 2). In other words, in the case of areal source pollution, an increase in the amount of pollutants discharged into the environment will certainly increase pollution.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

Water Pollution Prevention Measures<\/h3>\n\n\n\n

\u3000(1) Point source pollution control<\/h4>\n\n\n\n

\u3000Point source pollution in livestock farms often occurs when manure overflows from storage facilities and leaks into the environment because the size of the storage facility does not meet the appropriate capacity for the number of animals being kept. To prevent this, manure storage facilities have been regulated by the \"Law Concerning the Proper Management and Promotion of Utilization of Livestock Manure\" since 1999, and penalties have been imposed on facilities that violate the law.<\/p>\n\n\n\n

(2) Measures to prevent surface source contamination - (1) Establishment of allowable limit N<\/h4>\n\n\n\n

\u3000\u9762\u6e90\u6c5a\u67d3\u3092\u9632\u3050\u306b\u306f\uff0c\u5730\u4e0b\u6d78\u900f\u6c34\u306eNO3<\/sub>\u207b\uff0dN\u6fc3\u5ea6\u306e\u76e3\u8996\u304c\u91cd\u8981\u3067\u3042\u308b\u3002NO3\u207b\uff0dN\u6fc3\u5ea6\u306f\uff0c\u8fb2\u5730\u306b\u4e0e\u3048\u308b\uff2e\u3068\u4f5c\u7269\u304c\u5438\u53ce\u3059\u308b\uff2e\u306e\u53ce\u652f\u7d50\u679c\u3068\uff0c\u571f\u3092\u6d78\u900f\u3059\u308b\u6c34\u306e\u91cf\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u308b\u3002\u3057\u305f\u304c\u3063\u3066\uff0cNO3<\/sub>\u207b\uff0dN\u306e\u5730\u4e0b\u6d78\u900f\u306b\u3088\u308b\u6c34\u8cea\u6c5a\u6fc1\u3092\u9632\u3050\u306b\u306f\uff0c\u307e\u305a\u8fb2\u5730\u306b\u4e0e\u3048\u308b\uff2e\u91cf\u3092\uff0c\u81ea\u7136\u306e\u81ea\u6d44\u529b\u306b\u3088\u3063\u3066\u6c5a\u67d3\u7269\u8cea\u306b\u3088\u308b\u74b0\u5883\u3078\u306e\u60aa\u5f71\u97ff\u304c\u751f\u3058\u306a\u3044\u74b0\u5883\u306e\u53ce\u5bb9\u529b\uff08\u3053\u308c\u3092\u74b0\u5883\u5bb9\u91cf\u3068\u3044\u3046\uff09\u306e\u7bc4\u56f2\u306b\u6291\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3002\u3053\u306e\u4ed6\uff0c\u4f5c\u7269\u306e\uff2e\u5438\u53ce\u304c\u65fa\u76db\u3067\u306a\u3044\u6642\u671f\u306b\uff2e\u3092\u8fb2\u5730\u306b\u4e0e\u3048\u308b\u3053\u3068\u3082\u907f\u3051\u308b\u3079\u304d\u3067\u3042\u308b\u3002<\/p>\n\n\n\n

\u3000Based on this concept, the European Union (EU) legally regulates the amount of N derived from livestock manure up to 170 kg\/ha as an acceptable limit for agricultural land. In Japan, there is no such regulation for surface source pollution. Therefore, even if point source pollution is prevented by legal regulations on manure storage facilities, there is no limit to the amount of N that can be given to farmland, and thus prevention of areal source pollution is not thoroughly implemented. As a result, it has been pointed out that in nine prefectures with large numbers of livestock per unit area (Gunma, Kanagawa, Aichi, Tokushima, Kagawa, Nagasaki, Miyazaki, Kagoshima, and Okinawa), the estimated N concentrations discharged to groundwater all exceed drinking standards (Hojido et al., 2003).<\/p>\n\n\n\n

(3) Measures to prevent surface source pollution - (2) Use of topographic chains and buffer zones<\/h4>\n\n\n\n

\u3000\u5177\u4f53\u7684\u306a\u9762\u6e90\u6c5a\u67d3\u9632\u6b62\u5bfe\u7b56\u3068\u3057\u3066\uff0c\u4f8b\u3048\u3070\u8336\u5712\uff0d\u7551\uff0d\u6c34\u7530\uff0d\u6e7f\u5730\uff0d\u6cb3\u5ddd\u3068\u3044\u3046\u3088\u3046\u306b\uff0c\u9ad8\u4f4d\u7f6e\u304b\u3089\u4f4e\u4f4d\u7f6e\u3078\u7d9a\u304f\u5730\u5f62\u9023\u9396\u306e\u5229\u7528\u304c\u6709\u52b9\u3067\u3042\u308b\u3002\u9ad8\u4f4d\u7f6e\u306e\u8fb2\u5730\u304b\u3089\u5730\u4e0b\u6d78\u900f\u3057\u305fNO3<\/sub>\u207b\uff0dN\u306f\uff0c\u4f4e\u4f4d\u7f6e\u306e\u8fb2\u5730\u306e\u4f5c\u7269\u3067\u518d\u5229\u7528\u3055\u308c\uff0c\u6700\u7d42\u7684\u306b\u6c34\u7530\u3084\u6e7f\u5730\u306a\u3069\u306e\u9084\u5143\u6761\u4ef6\uff08\u9178\u7d20\u304c\u4e0d\u8db3\u3057\u305f\u72b6\u614b\uff09\u3067\u74b0\u5883\u306b\u7121\u5bb3\u306a\u7a92\u7d20\u30ac\u30b9\uff08N2<\/sub>\uff09\u306b\u5909\u63db\u3055\u308c\u3066\u5927\u6c17\u306b\u6392\u51fa\u3055\u308c\u308b\u305f\u3081\uff0c\u9762\u6e90\u6c5a\u67d3\u306e\u9632\u6b62\u306b\u3064\u306a\u304c\u308b\u3002<\/p>\n\n\n\n

\u3000\u8fb2\u5730\u304b\u3089\u8868\u9762\u6d41\u53bb\u6c34\u3068\u3057\u3066\u6c34\u57df\u3078\u6d41\u51fa\u3059\u308b\u5834\u5408\u306f\uff0c\u6d41\u51fa\u3057\u305fNO3<\/sub>\u207b\uff0dN\u306a\u3069\u306e\u74b0\u5883\u6c5a\u67d3\u7269\u8cea\u304c\u6cb3\u5ddd\u3084\u6e56\u6cbc\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u306b\uff0c\u81ea\u7136\u6d44\u5316\u3092\u53d7\u3051\u308b\u6a5f\u4f1a\u3092\u591a\u304f\u3059\u308b\u3053\u3068\u304c\u6c5a\u67d3\u9632\u6b62\u5bfe\u7b56\u3068\u306a\u308b\u3002\u305d\u306e\u305f\u3081\u306b\uff0c\u6cb3\u5ddd\u306e\u305d\u3070\u306b\u6e7f\u5730\u3084\u6797\u5730\u3092\u8a2d\u3051\u3066\u6cb3\u5ddd\u3078\u306e\u6d41\u5165\u306e\u7de9\u885d\u5e2f\u3068\u3057\u3066\u5229\u7528\u3059\u308b\u3068\uff0c\u81ea\u7136\u6d44\u5316\u304c\u3059\u3059\u307fNO3<\/sub>\u207b\uff0dN\u6fc3\u5ea6\u304c\u4f4e\u4e0b\u3059\u308b\u3002<\/p>\n\n\n\n

\u3000The degree of remediation is greater when the distance between the source and the river is planted with crops, such as grassland, than in bare soil conditions. The required width of the buffer zone for this purpose is several to several tens of meters for point source pollution control and several tens of meters for area source pollution. However, since the effectiveness of this buffer zone varies greatly depending on land conditions, no specific standard for the required width of the buffer zone has been established.<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

General Index of Previous Editions of this Journal in 2023<\/h2>\n\n\n\n

\uff1c\uff11\u6708\u53f7\uff1e
\u00a7Aiming to be a company that continues to contribute to Japanese agriculture
\u3000\u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u4ee3\u8868\u53d6\u7de0\u5f79\u4f1a\u9577\u3000\u6d45\u91ce\u3000\u9032
\u00a7 Super-efficient fertilization of sudachi
\u3000\u5fb3\u5cf6\u770c\u7acb\u8fb2\u6797\u6c34\u7523\u7dcf\u5408\u6280\u8853\u652f\u63f4\u30bb\u30f3\u30bf\u30fc\u3000\u8cc7\u6e90\u74b0\u5883\u7814\u7a76\u8ab2\u3000\u65b0\u5c45\u3000\u7f8e\u9999
No \u00a7 Soil - No. 18
\u3000How plants absorb insoluble substances
\u3000\uff0d\u6839\u304b\u3089\u6eb6\u89e3\u3092\u52a9\u3051\u308b\u7269\u8cea\u3092\u5206\u6ccc\u3059\u308b\uff0d
\u3000\u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c\uff12\u6708\u30fb\uff13\u6708\u5408\u4f75\u53f7\uff1e
\u00a7\u6c34\u7530\u571f\u58cc\u306e\u7c98\u571f\u542b\u6709\u91cf\u3068\u70ad\u7d20\u542b\u6709\u91cf\u304b\u3089\u6839\u3053\u3076\u75c5\u9632\u9664\u306b\u5fc5\u8981\u306a\u8ee2\u7089\u30b9\u30e9\u30b0\u304a\u3088\u3073\u6d88\u77f3\u7070\u306e\u65bd\u7528\u91cf\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5
\u3000\u6771\u5317\u8fb2\u696d\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u3000\u7551\u4f5c\u5712\u82b8\u7814\u7a76\u9818\u57df\u3000\u91ce\u83dc\u65b0\u4f5c\u578b\u30b0\u30eb\u30fc\u30d7\u3000\u5c71\u53e3\u3000\u5343\u4ec1
No \u00a7 Soil - No. 19
\u3000Until the absorbed nitrogen becomes protein.
\u3000\uff0d\u690d\u7269\u306f\u5fc5\u8981\u306a\u30a2\u30df\u30ce\u9178\u3092\u3059\u3079\u3066\u81ea\u7d66\u3059\u308b\uff0d
\u3000\u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c\uff14\u6708\u53f7\uff1e
\u00a7\u6c17\u8c61\u5909\u52d5\u6761\u4ef6\u4e0b\u306b\u304a\u3051\u308b\u6c34\u7a32\u306b\u5bfe\u3059\u308b\u300c\u82d7\u7bb1\u307e\u304b\u305b\u300d\u306e\u6709\u7528\u6027\u306e\u8003\u5bdf
\u3000\u682a\u5f0f\u4f1a\u793e\u30d5\u30a1\u30fc\u30e0\u30fb\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u3000\u53d6\u7de0\u5f79\u4f1a\u9577\u3000\u85e4\u4e95\u3000\u5f18\u5fd7
No \u00a7 Soil - No. 20
\u3000Affects the taste of agricultural products
\u3000\u30bf\u30f3\u30d1\u30af\u8cea\u3068\u70ad\u6c34\u5316\u7269\u306f\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306e\u95a2\u4fc2
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c\uff15\u6708\u53f7\uff1e
\u00a7\u30e1\u30ed\u30f3\u3068\u30ad\u30e5\u30a6\u30ea\u306e\u30de\u30b0\u30cd\u30b7\u30a6\u30e0\uff0c\u30ab\u30ea\u30a6\u30e0\u306e\u6b20\u4e4f\u75c7\u72b6\u3068\u518d\u79fb\u52d5
\u3000\u5143 \u5ca1\u5c71\u5927\u5b66\u5927\u5b66\u9662\u3000\u81ea\u7136\u79d1\u5b66\u7814\u7a76\u79d1\u3000\u685d\u7530\u3000\u6b63\u6cbb
No \u00a7 Soil - No.21
\u3000Why is it said that \"the soil is alive?
\u3000\uff0d\u571f\u306f\u751f\u304d\u7269\u306a\u306e\u304b
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c\uff16\u6708\u53f7\uff1e
\u00a7\u80a5\u6599\u6bbb\u306e\u6d41\u51fa\u3092\u9632\u3050\u305f\u3081\u306eIB\u80a5\u6599\u3084\u5d29\u58ca\u6027\u88ab\u8986\u80a5\u6599(J\u30b3\u30fc\u30c8)\u306b\u3088\u308b\u88ab\u8986\u80a5\u6599\u4ee3\u66ff\u52b9\u679c\u306e\u691c\u8a3c
\u3000\u611b\u5a9b\u770c\u8fb2\u6797\u6c34\u7523\u7814\u7a76\u6240\u3000\u9ed2\u702c\u3000\u54b2\u5f25\u3000\u3000\u68ee\u91cd\u3000\u967d\u5b50
\u00a7\u30a2\u30b9\u30d1\u30e9\u30ac\u30b9\u683d\u57f9\u306b\u304a\u3044\u3066\u88ab\u8986\u5c3f\u7d20\u80a5\u6599\u3067\u7a92\u7d20\u3092\uff13\u5272\u6e1b\u80a5\u3067\u304d\u308b\u74b0\u5883\u8ca0\u8377\u4f4e\u6e1b\u65bd\u80a5\u6280\u8853
\u3000\u718a\u672c\u770c\u8fb2\u696d\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u3000\u751f\u7523\u74b0\u5883\u7814\u7a76\u6240\u3000\u571f\u58cc\u74b0\u5883\u7814\u7a76\u5ba4\u3000\u5c71\u4e0b\u3000\u745b
No \u00a7 Soil - No.22
\u3000\u5730\u7403\u4e0a\u306e\u751f\u547d\u3092\u80b2\u307f\uff0c\u5730\u7403\u74b0\u5883\u3092\u4fdd\u5168\u3059\u308b\u571f\u306e\u5f79\u5272
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c\uff17\u6708\u53f7\uff1e
\u00a7\u88ab\u8986\u80a5\u6599\u300cJ\u30b3\u30fc\u30c8\u00ae Quick\u300d\u3092\u7528\u3044\u305f\u30c9\u30ed\u30fc\u30f3\u306b\u3088\u308b\u6c34\u7a32\u306e\u5c40\u6240\u8ffd\u80a5\u6280\u8853
\u3000\u77f3\u5ddd\u770c\u8fb2\u6797\u7dcf\u5408\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u8fb2\u696d\u8a66\u9a13\u5834\u3000\u4f5c\u7269\u683d\u57f9\u30b0\u30eb\u30fc\u30d7\u3000\u5c02\u9580\u7814\u7a76\u54e1\u3000\u6709\u624b\u3000\u53cb\u55e3
\u00a7 Reports on production areas
\u3000\u5bcc\u58eb\u4f0a\u8c46\u8fb2\u696d\u5354\u540c\u7d44\u5408 \u97ee\u5c71\u55b6\u8fb2\u7d4c\u6e08\u30bb\u30f3\u30bf\u30fc\u7ba1\u5185\u306b\u304a\u3051\u308b\u5927\u7389\u30c8\u30de\u30c8\u3068\u30a4\u30c1\u30b4\u306e\u30a8\u30b3\u30ed\u30f3\u30b0\u65bd\u80a5\u4f53\u7cfb\u306e\u7d39\u4ecb
\u3000\u9759\u5ca1\u770c\u5bcc\u58eb\u4f0a\u8c46\u8fb2\u696d\u5354\u540c\u7d44\u5408\u3000\u97ee\u5c71\u55b6\u8fb2\u7d4c\u6e08\u30bb\u30f3\u30bf\u30fc\u3000\u5c0f\u9e7f\u3000\u6d69\u7766
No \u00a7 Soil - No. 23
\u3000There was no soil on the primitive earth.
\u3000\uff0d\u3053\u3046\u3057\u3066\u5730\u7403\u306b\u571f\u304c\u8a95\u751f\u3057\u305f
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c\uff18\u6708\u30fb\uff19\u6708\u5408\u4f75\u53f7\uff1e
\u00a7\u6c34\u7a32\u306b\u304a\u3051\u308b\u9ad8\u5bc6\u5ea6\u64ad\u7a2e\u3068\u80b2\u82d7\u7bb1\u5168\u91cf\u65bd\u80a5\u683d\u57f9\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u7701\u529b\u6280\u8853
\u3000\u718a\u672c\u770c\u8fb2\u696d\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u3000\u751f\u7523\u74b0\u5883\u7814\u7a76\u6240\u3000\u571f\u58cc\u74b0\u5883\u7814\u7a76\u5ba4\u3000\u7530\u4e2d\u3000\u4e00\u6210
\u00a7 Labor-saving fertilization method in the seedling stage of strawberry \"Amaou
\u3000\u798f\u5ca1\u770c\u8fb2\u6797\u696d\u7dcf\u5408\u8a66\u9a13\u5834\u3000\u7b51\u5f8c\u5206\u5834\u3000\u9f8d\u3000\u52dd\u5229
No \u00a7 Soil - No.24
\u3000Soil is a product of the environment
\u3000\uff0d\u98a8\u5316\u3068\u751f\u7269\u306e\u4f5c\u7528\u304c\u5ca9\u77f3\u304b\u3089\u571f\u3092\u3064\u304f\u308b
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c10\u6708\u53f7\uff1e
\u00a7\u8328\u57ce\u770c\u306e\u30ec\u30f3\u30b3\u30f3\u683d\u57f9\u306b\u304a\u3051\u308b\u7a92\u7d20\u9069\u6b63\u65bd\u80a5\u6280\u8853\u306e\u958b\u767a
\u3000\u8328\u57ce\u770c\u8fb2\u696d\u7dcf\u5408\u30bb\u30f3\u30bf\u30fc\u3000\u5712\u82b8\u7814\u7a76\u6240\u3000\u571f\u58cc\u80a5\u6599\u7814\u7a76\u5ba4\u3000\u9e7f\u5cf6\u3000\u5553\u53f8
\u00a7\u9178\u6027\u30c7\u30bf\u30fc\u30b8\u30a7\u30f3\u30c8\u53ef\u6eb6\u6709\u6a5f\u614b\u7a92\u7d20\u542b\u91cf\u3092\u7528\u3044\u305f\u6709\u6a5f\u8cea\u8cc7\u6750\u7a92\u7d20\u80a5\u52b9\u898b\u3048\u308b\u5316\u306e\u53d6\u308a\u7d44\u307f
\u3000\u8fb2\u7814\u6a5f\u69cb\u3000\u4e5d\u5dde\u6c96\u7e04\u8fb2\u696d\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u3000\u6696\u5730\u755c\u7523\u7814\u7a76\u9818\u57df\u3000\u4e3b\u5e2d\u7814\u7a76\u54e1\u3000\u53e4\u8cc0\u3000\u4f38\u4e45
No \u00a7 Soil - No. 25
\u3000Agriculture is the beginning of environmental destruction.
\u3000\uff0d\u4eba\u9593\u6d3b\u52d5\u3068\u74b0\u5883\u3068\u306e\u95a2\u308f\u308a\uff0d
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c11\u6708\u53f7\uff1e
\u00a7J\u30b3\u30fc\u30c8\u80a5\u6599\u3092\u7528\u3044\u305f\u6c34\u7a32\u306e\u5168\u91cf\u57fa\u80a5\u65bd\u80a5\u3068\u88ab\u8986\u6a39\u8102\u6bbb\u306e\u5d29\u58ca\u6027
\u3000\u9577\u91ce\u770c\u8fb2\u696d\u8a66\u9a13\u5834\u3000\u4e0a\u539f\u3000\u656c\u7fa9\u3000\u3000\u5409\u5ddd\u3000\u76f4\u4eba
No \u00a7 Soil - No.26
\u3000Agriculture and Environmental Issues - Part 1
\u3000\u308f\u304c\u56fd\u306e\u7a92\u7d20\u5faa\u74b0\u306e\u554f\u984c\u70b9
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b<\/p>\n\n\n\n

\uff1c12\u6708\u53f7\uff1e
\u00a7 Growth of Chinese cabbage and nitrogen application
\u3000\u5143 \u5bcc\u5c71\u770c\u8fb2\u696d\u6280\u8853\u30bb\u30f3\u30bf\u30fc\u3000\u677e\u672c\u3000\u7f8e\u679d\u5b50
No \u00a7 Soil - No. 27
\u3000Agriculture and Environmental Issues - Part 2
\u3000\u8fb2\u5730\u7531\u6765\u306e\u7a92\u7d20\u306b\u3088\u308b\u6c34\u8cea\u6c5a\u6fc1
\u3000\u524d \u30b8\u30a7\u30a4\u30ab\u30e0\u30a2\u30b0\u30ea\u682a\u5f0f\u4f1a\u793e\u3000\u5317\u6d77\u9053\u652f\u5e97\u3000\u6280\u8853\u9867\u554f\u3000\u677e\u4e2d\u3000\u7167\u592b
\u00a72023 General Table of Previous Editions of this Journal<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

\u3000<\/p>","protected":false},"featured_media":458,"template":"","agriculture_science_tag":[165],"class_list":["post-3717","agriculture_science","type-agriculture_science","status-publish","has-post-thumbnail","hentry","agriculture_science_tag-165"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.jcam-agri.co.jp\/en\/wp-json\/wp\/v2\/agriculture_science\/3717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcam-agri.co.jp\/en\/wp-json\/wp\/v2\/agriculture_science"}],"about":[{"href":"https:\/\/www.jcam-agri.co.jp\/en\/wp-json\/wp\/v2\/types\/agriculture_science"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcam-agri.co.jp\/en\/wp-json\/wp\/v2\/media\/458"}],"wp:attachment":[{"href":"https:\/\/www.jcam-agri.co.jp\/en\/wp-json\/wp\/v2\/media?parent=3717"}],"wp:term":[{"taxonomy":"agriculture_science_tag","embeddable":true,"href":"https:\/\/www.jcam-agri.co.jp\/en\/wp-json\/wp\/v2\/agriculture_science_tag?post=3717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}