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在小麦生产上为避免贪青晚熟,生育后期一般追施肥料要慎重。据研究报道,灌浆期间叶面喷施氮素能提高籽粒蛋白质舍量,但对产量影响较小。本研究的目的是探讨小麦不同施肥方法对产量与品质的影响,为小麦生育后期合理追施氮肥提供参考。材料和方法试验于1988～1989年在河北省任丘市石门桥基点进行。试验地前茬为玉米,耕作层(0～20厘米)内有机质含量为0.86％,碱解氮77.52ppm,速效磷6.1ppm,
In wheat production in order to avoid greyish late maturity, fertility generally follow-up fertility late caution. According to research reports, foliar application of nitrogen during grain filling can increase the grain protein yield, but less impact on the yield. The purpose of this study is to investigate the effects of different fertilization methods on yield and quality of wheat and to provide a reference for rational topdressing of nitrogen fertilizer in later growth stage of wheat. Materials and methods The experiment was carried out in 1988-1989 at the base of Shimen Bridge in Renqiu City, Hebei Province. The former crop was maize, the content of organic matter was 0.86% in tillage layer (0 ~ 20 cm), 77.52 ppm in alkaline hydrolysis, 6.1 ppm in available phosphorus,