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采用通用旋转组合设计试验研究了基施纯氮、播种期、基本苗、P_2O_5、追施纯氮与冬小麦亩产量、经济效益及成本的关系。结果表明,该五因素与其密切相关,而且施磷肥、适期早播和降低播量是小麦优化栽培的关键,增施磷肥更益于氮肥肥效的发挥。实现高产(≥550kg/亩)、高效(≥210元/亩)、低耗(≤70元/亩)优化栽培的农艺措施是:亩基施纯氮9.85～10.79kg,P_2O_511.89～13.20kg,播种期冬前积温690～720℃,基本苗6.2～7.8万,小麦起身期亩追纯氮5.66～6.70kg。
The universal rotary combination design experiment was conducted to study the relationship between pure nitrogen, sowing date, basic seedling, P 2 O 5, topdressing pure nitrogen and yield per mu, economic benefit and cost of winter wheat. The results showed that the five factors were closely related to it. Moreover, the key to optimal cultivation of wheat was to apply phosphate fertilizer, sowing prematurely and reducing seeding rate. The application of phosphate fertilizer was more beneficial to the efficiency of nitrogen fertilizer. The agronomic measures to achieve high yield (≥550kg / acre), high efficiency (≥210 yuan / acre) and low consumption (≤70 yuan / acre) are as follows: 9.85 ~ 10.79kg of pure nitrogen per acre basis, P_2O_511.89 ~ 13.20kg , Sowing temperature before winter 690 ~ 720 ℃, the basic seedlings of 6.2 to 78000 acres of wheat to recover from the recovery of pure nitrogen 5.66 ~ 6.70kg.