国内外应用示踪原子进行的肥料试验表明,小麦所需养分50—70%来源于土壤,30—50%来源于当季施入的肥料中。这表明,要实现小麦高产,土壤本身的肥力基础是主要的,但施肥运筹也是一个不容忽视的重要因素。本文根据我省1986—1989年小麦亩产超500公斤高产实践,就小麦亩产超500公斤土壤基础条件及投肥作一浅析,以求为小麦高产再高产提供参考。 Fertilizer experiments using tracer atoms at home and abroad show that 50-70% of the nutrients needed by wheat come from the soil and 30-50% from the fertilizers applied during the season. This shows that in order to achieve high yield of wheat, the fertility base of the soil itself is the main factor, but fertilizer application is also an important factor that can not be ignored. In this paper, according to our province in 1986-1989 wheat yield over 500 kilograms of high yield practice, wheat over 500 kg of soil over 500 kg of soil basic conditions and fertilizer for a brief analysis, in order to provide a reference for high yield of wheat and then high yield.