冀西北春小麦高产优质高效栽培研究─—氮磷肥对春小麦产量和品质的影响及效益分析

High Yielding,Good Quality and High Efficiency Cultivation of Spring Wheat in Northwest of Hebei Province───Effects of N and P Fertilizer upon Grain Yields and Quality of Spring Wheat

对冀西北坝上高原水浇地春小麦品种“晋春９号”施肥试验表明，施Ｎ肥和Ｐ肥能显著提高小麦产量，施Ｎ肥可显著提高籽粒蛋白含量、籽粒蛋白质产量、沉淀值及干、湿面筋含量。施Ｐ肥主要影响反映面粉烘烤品质的沉淀值，而对干、湿面筋含量无显著影响，施少量Ｐ肥，有提高蛋白含量的作用。

Trials of fertilization to spring wheat cultivar─ ─“Jinchun No9”were con-ducted in the irrigated fields in Bashang Highland of Northwestern Hebei Province.Theresults indicated that the application of N and P fertilizer increased wheat yields siginifi-cantly,and application of N fertilizer could greatly improve protein contents and yields ingrains,sedimentation values and dry and wet gluten contents,while application of P fer-tilizer might affect sedimentation values which reflected baking quality of flour but haveno effect upon dry and wet gluten contents. Accordingly ,Low P application could in-crease protein contents in grains.