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研究了高肥力条件下 ,不同底氮量和行距对豫麦 49号小麦的产量及其构成因素的影响。结果表明 :在施入一定底氮 (纯氮 1 2kg/亩左右 )的基础上 ,不同底氮增加量对小麦产量有极显著差异 ,以底肥增施 1 0kg/亩尿素产量最高 ;不同行距配置对产量影响不大 ;不同底氮量和行距互作对产量有显著影响 ,以底肥增施 1 0kg/亩尿素并采用 0 .2 0m× 0 .2 6m种植方式产量最高 ,底肥增施 2 0kg/亩尿素宜采取 0 .1 3m× 0 .33m种植方式 ,底肥不增施氮肥时 ,无论采取何种行距 ,其产量都最低
The effects of different substrate N and row spacing on the yield and its components of Yumai 49 wheat were studied under high fertility conditions. The results showed that there was a significant difference in the yield of different base nitrogen when applying a certain base nitrogen (about 12kg / mu pure nitrogen), with the highest yield of urea at base fertilizer application of 10kg / mu; The effect of different substrate N and row spacing interaction on yield was significant. With basal application of 10 kg / mu urea and 0.2 0 m × 0.26 m planting methods, the yield was the highest while the basal application of 20 kg / Mu urea should take 0 .1 3m × 0.33m planting mode, the base fertilizer without nitrogen fertilizer, no matter what kind of row spacing, the lowest yield