论文部分内容阅读
试验结果表明:玉米是喜氮作物,全生育期纯N施入量在160kg/hm2左右达到较高产量,N肥偏少会严重影响穗粒数。在N肥基本满足玉米生育需要时,适量追施P、K肥能显著提高产量。
The results showed that corn was a hi-nitrogen crop, and the pure N application rate reached a high yield of about 160 kg / hm2 during the whole growth period. Few N fertilizer would seriously affect the number of grains per spike. Fertilizer N basically meet the needs of maize, the amount of topdressing P, K fertilizer can significantly increase production.