论文部分内容阅读
[目的]为小麦高产栽培提供科学施肥理论依据。[方法]2012~2013年度,以小麦品种云麦53为材料,运用田间肥料裂区试验和分析方法研究了不同施肥方式对小麦产量、产量构成因素的影响。[结果]不同时期施氮肥能在0.01水平显著地提高籽粒产量,改善产量构成因素,并且效果优于施磷、钾肥及不施肥处理。[结论]小麦高产栽培的最优施肥方式是把16%过磷酸钙525 kg/hm2和50%硫酸钾225 kg/hm2全部作种肥一次性施入,46%尿素600 kg/hm2分不同时期施用,其中150 kg/hm2作种肥、225 kg/hm2作分蘖肥、225 kg/hm2作拔节肥。
[Objective] The research aimed to provide scientific basis for high fertility wheat cultivation. [Method] From 2012 to 2013, the wheat variety Yunmai 53 was used as experimental material to study the effects of different fertilization modes on the yield and yield components of wheat. [Result] Applying N fertilizer at different time could significantly increase the grain yield and improve the yield components at the level of 0.01, and its effect was better than that of phosphorus, potassium fertilizer and no fertilizer application. [Conclusion] The optimum fertilization method for high-yielding wheat was to apply all the seedlings with 525 kg / hm2 of 16% superphosphate and 225 kg / hm2 of 50% potassium sulfate as a kind of single-time fertilizer, with 46% urea 600 kg / hm2 Of which 150 kg / hm2 as seed fertilizer, 225 kg / hm2 as tillering fertilizer and 225 kg / hm2 as jointing fertilizer.