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我省近年来在土壤普查的基础上推广配方施肥,提高了肥料利用率,收到了增产增收的显著效果。为进一步了解配方施肥已使作物体内营养平衡达到何种程度,还有多大的增产潜力,在进一步调节作物营养平衡时的首要元素是哪种,等等。我们于1980—1982年引用统合法营养诊断技术,研究了小麦配方施肥问题。1983年在大田生产上运用研究结果对小麦施拔节肥,获得了小麦增产17—58％的显著效果。现将对该法的应用研究及结果作概要的介绍。
In recent years, our province has popularized formula fertilization on the basis of soil census, increased the fertilizer utilization rate and received notable effects of increasing production and increasing income. To learn more about the extent to which the formula fertilizers have allowed crop nutrition to balance, what is the potential yield potential, what is the primary element in further adjusting crop nutrition balance, and so on. In 1980-1982, we quoted the unified method of nutrition diagnosis, and studied the problem of wheat formula fertilization. Applying the research results on the field production in 1983, the fertilizer was applied to the wheat and the wheat yield was increased by 17-58%. Now the application of the law and the results will be summarized as an introduction.