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为了使土壤及作物诊断速测方法更好地为农业学大寨、普及大寨县服务,我刊曾于1976年第二期发表了全国土壤普查、土壤诊断研究协作组集体编写的《土壤和作物营养诊断速测方法》一文,受到了广大读者的欢迎,并收到了不少改进意见,经过实践应用,最近协作组综合读者意见和自己的实践,对这一方法又进行了修改和补充,现我刊再次全文发表,供各地参考。这次刊登的方法比去年发表的方法,虽有些改进和提高,但仍存在不少缺点。欢迎广大读者在生产斗争和科学实验实践应用中,不断加以验证,继续提出宝贵意见,以便使这一方法逐步完善。
In order to make soil and crop diagnostic rapid test method better for Dazhai Agricultural College and popularize Dazhai County, I published the second national soil survey in 1976, and the Collaborative Group for Soil Diagnostics Research collectively wrote “Soil and Crop Nutrition Diagnostic Rapid Test Method ”article, has been welcomed by the majority of readers, and received a lot of improvements, after practical application, the recent collaboration group based on the views of readers and their own practice, this method has been modified and supplemented, Now I published full text published for reference throughout. Although the methods published in this issue are more improved and improved than those published last year, many shortcomings still exist. Welcome readers in the production struggle and the application of scientific experiments in practice, continue to be verified, continue to put forward valuable comments, in order to make this method gradually improved.