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研究了氮肥一次和分次追施的时期、追施量及灌浆水对小麦产量和质量的影响。结果表明 :前氮后移是小麦优质高产的一项行之有效的管理技术。分次追施比一次追施更利于小麦优质高产。拔节中期追氮对亩穗数影响较大 ,孕穗后期追氮对提高穗粒重作用明显。分次追氮 ,拔节中期 (3月 2 2日 ) 6kg、灌浆初期 2kg与孕穗后期 6kg、灌浆初期 2kg相比 ,前者产量较高 ,但差异不显著 ;后者品质明显提高。灌浆水对提高小麦产量和品质均有较大作用
The effects of topdressing rate and grouting water on the yield and quality of wheat were studied. The results showed that pre-nitrogen post-translocation was an effective management technique for high quality and high yield of wheat. Sub-top dressing is more conducive to wheat top-quality than high-yielding. In the mid jointing stage, the amount of acreage of Acreus paniculata had a greater effect on the acreage of panicles, and the effect of topdressing nitrogen on ear grain weight was obvious in the late booting stage. The yield of the former was higher but the difference was insignificant than that of the latter during the early filling stage. The quality of the latter increased significantly. Grouting water has a great effect on improving wheat yield and quality