【摘要】 1985—1987年在新乡的试验表明,栽培环境明显地影响小麦籽粒产量和蛋白质含量。施用氮肥能明显地提高小麦籽粒产量和品质。在豫北越冬和拔节期施用氮肥对小麦的籽粒产量效果很好。籽粒蛋白质含量随追施氮肥时期的后延而增加,拔节以前追施氮肥能使小麦的籽粒产量和蛋白质含量同时提高,孕穗期施氮肥只能提高籽粒蛋白质含量而不能提高籽粒产量。更多还原

【Abstract】 The field trails in xinxiang, Henan province from 1985 - 2987 show that the grain yield, the protein content are significantly influenced by cultivation environment. Using nitrogen fertilizer can distinctly increase the grain yield and quality of wheat.In the north of Henan Province, applying nitrogen fertilizer before winter and jointing stage can obtain better effect of grain yield.The protein content of the grain is raising with applying nitrogen fertilizer stage being put off.Applying nitrogen fertilizer -can increase the grain yield and protein content at the stage before elongation .Applying nitrogen fertilizer at boot stage can only raise grain protein content, can’t increase the grain yield.更多还原