【摘要】 通过二年的田间试验和室内化学分析,对高秆、中秆、矮秆型春小麦的营养特性进行了研究.本文主要阐明:不同春小麦品种体内N、P、K浓度消长规律的共性与差异;三要素消耗系数,生产效率的置信范围和品种间的差异;不同品种三要素吸收曲线的共性和特殊性;穗部三要素的来源等.为耐肥性不同的春小麦品种的施肥技术提供理论依据更多还原

【Abstract】 Nutrition characters of high rod, middle rod and low rod spring wheat have been studied through out two years with field tests and chemical analysis in the laboratory. This paper illustrates mainly following aspects. General character and difference of concentration of N,P,K in various spring wheats; credible range of consume coefficient and production efficiency of above three main elements; general character and special character of absorption curves among spe-cies; distribution and movement of three main elements in wheat plant; source of three main elements in spike etc. It provides a basis for technique of casting fertilizer on different spring wheats which are different in enduring fertilizer.更多还原