上海郊区村级农田水稻推荐施肥初探
徐四新,姚政,金海洋,杨建军,罗国安
Preliminary study on recommended rate of fertilizer application in village-level rice field in Shanghai suburbs
XU Si-xin,YAO Zheng,JIN Hai-yang,YANG Jian-jun,LUO Guo-an
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