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小麦氮肥后移技术主要适用于强筋和中筋小麦,以春季追氮和底追比例后移,适宜的氮素适用量为核心的栽培技术体系。该技术具有良好的经济效益和环境效益:一是提高小麦的籽粒产量,较传统施肥增产10%~15%;二是改善小麦的籽粒品质,改善优质强筋小麦的营养品质和加工品质;三是减少氮肥的损失,提高氮肥利用率10%,减少氮素环境的污染。这套小麦高产优质的栽培技术,适用于北方冬麦区和黄淮海冬麦区高产田的强筋和中筋小麦生产。氮肥后移技术要注意两点:一是在较高的土壤肥力条件下运用该技术;二是在正常栽培条件下运用该
The technology of wheat N application is mainly applied to the strong gluten and medium gluten wheat, with the proportion of topdressing and nitrogen chasing in the spring, the suitable nitrogen application is the core cultivation technology system. The technology has good economic and environmental benefits: First, to increase the grain yield of wheat, 10% to 15% more than the traditional fertilization; second is to improve the grain quality of wheat and improve the nutritional quality and processing quality of high-quality gluten wheat; Third It is to reduce the loss of nitrogen fertilizer, improve nitrogen fertilizer utilization rate of 10%, reduce nitrogen pollution. This high-yielding and high-quality wheat cultivation technique is suitable for the production of strong gluten and mid-gluten wheat in the high-yielding fields in the northern winter wheat area and the Huang-Huai-Hai winter wheat area. Nitrogen fertilizer should pay attention to the following two techniques: First, the application of high soil fertility conditions of the technology; Second, the use of the normal cultivation conditions