辽河三角洲稻区施氮水平对水稻生长发育及产量的影响
李波,宫亮,曲航,金丹丹,孙文涛

Effects of Nitrogen Application Rate on Rice Growth and Yield in Liaohe Delta
Bo Li,Liang Gong,Hang Qu,Dandan Jin,Wentao Sun
图4 水稻籽粒产量与氮肥施用量的关系
Fig.4 The relationship between rice grain yields and nitrogen application rates