高产小麦营养生理特性与高效施肥技术研究

 1985-1987年在江苏省农科院和江宁县农科所进行的小麦营养特性和施肥技术的田间试验，系统地研究了不同供氮水平小麦的氮磷钾的吸收与利用、糖的形成以及对产量的影响。明确了高产小麦前期为高氮高糖期，返青为高氮低糖期，后期以碳代谢为主。并据土壤肥力、肥料利用、养分产量关系，提出了淮南丘陵地区小麦施肥推荐量计算程序中的参数、合理的肥料运筹原则和亏氮麦苗最为有效的补氮时期。

STUDIES ON NUTRIENT CHARACTERS IN WHEAT OF HIGH YIELD POTENTIAL AND TECHNIQUES FOR FERTILIZER APPLICATION

The absorption of N, P, K, and formation of carbohydrate in wheat plant with different N rate and effecting on grain yield were systematically studied with field experiment of wheat plant nutrient characters and techniques for fertilizer application at JAAS and the Agricultural Research Institute in Jiangning County during 1985-1987. The result showed that higher level of N, C were appeared at tillering stage, higher N level with lower C were meet at recoverying stage, higher C at late of plant growth for high yield potential. The parameters for calculating recommendation fertilizer rate, the reasonable principle of fertilizer application, and economical stage of making up for N critical wheat plant were summarized according to soil, fertilizer and relation between plant nutrient and yield.