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为给冀东地区小麦高产栽培提供技术参考,以高蛋白质品种京冬8号和低蛋白质品种宝麦38为材料,设置每公顷0、120、240、360千克施氮水平,研究了在灌溉和雨养条件下氮素营养对冬小麦干物质积累和产量形成的调控效应。结果表明,适量施氮提高了小麦干物质积累量、结实小穗数和穗粒数,促进了叶片、茎和鞘的花前贮存干物质在花后向子粒中的转移,但过量施氮则抑
In order to provide technical reference for the high-yielding cultivation of wheat in eastern Hebei, high-protein cultivar Jingdong 8 and low-protein cultivar Baomi 38 were used to set 0,120,240,360 kg nitrogen application rate per hectare. Regulation of Nitrogen Nutrition on Dry Matter Accumulation and Yield Formation of Winter Wheat under Rainfed. The results showed that nitrogen application increased the accumulation of dry matter, the number of spikelets and the number of grains per spike, and promoted the transfer of pre-anthesis dry matter from leaves, stems and sheaths to the grain after anthesis, but excessive nitrogen application Suppressed