陕西关中东部灌区施用氮磷钾肥对夏玉米产量的影响

Effect of N,P and K on the Yield of Summer Corn in Guanzhong Eastern Irrigation District of Shaanxi

对陕西关中东部灌区夏玉米施用氮磷钾肥进行了研究,结果表明:施用氮磷钾肥能显著增加玉米产量,是夺取玉米高产的有效措施。氮磷钾肥对玉米产量和经济性状影响的顺序是:N>P>K。

Effect of N, P, K on summer corn in Guanzhong eastern irrigation district was studied. The results showed that N,P,K coordi- nation could obviously increase the corn yield, it was the good measures for high yield. The effect of N,P,K application on corn yield and economic characters followed the order N〉P〉K.