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1978年我区各协作单位对“水稻营养诊断全量氮磷钾速测法”在生产上的应用价值进行了验证。试验结果表明,这个新的诊断方法符合简、快、准、省的速测要求,对施肥反应敏感,能反映生产的实际情况。但是,如何应用诊断结果,对水稻植株养分的丰缺作出判断,从而正确指导施肥,这是一个非常重要的问题。本文的目的在于通过DRIS法的应用来回答这个问题。一、DRIS法简介博菲尔斯(Beaufils)从五十年代开始研究一种独特的诊断技术,它首先考虑到作物对营养元素需要的不同程度,诊断作物的需肥次序,并综合考虑限制作物产量的自然
In 1978, various cooperative units in our district verified the application value of “the rapid determination of total NPK in rice nutrition diagnosis” in production. The test results show that this new diagnostic method meets the quick test requirements of simple, fast, accurate and provincial, is sensitive to the fertilization response and can reflect the actual production. However, it is a very important issue how to apply the diagnostic results to make judgment on the abundance and deficiency of rice plants so as to correctly guide fertilization. The purpose of this article is to answer this question by applying the DRIS method. I. INTRODUCTION TO THE DRIS METHOD Beaufils began in the 1950s to study a unique diagnostic technique that first took into account the different levels of crop nutrient demand, the need to diagnose the crop sequence, and the combination of crop restrictions Natural production