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高等植物往土壤中分泌有机物以及連作时它对植物的毒害作用与土壤貧瘠化現象有关的問題,早就引起了研究者的注意。作者在一篇包括182种文献的詳細綜述中,从18世紀末产生这个問題的时候起一直到目前为止,完整地、詳尽地探討了这一問題。关于植物根系分泌的有毒物质对土壤貧瘠化具有特殊作用的理論,随着嗣后研究的发展,遭到了严格的批評。以后发現了其他的減低土壤生产力的諸如营养元素耗竭等的因子。同时,局部地研究了植物与土壤微生物及其代謝产品(抗生素、除莠剂、生长素、抑制剂)的相互影响,确定了不仅是植物根、而且还有其他器官(种子、果实、叶子)的分泌物的生物学作用,并且对各种各样的有机分泌物作出了詳尽的化学鑑定。
The problem of organism secreted by higher plants into the soil and its toxic effects on plants during the continuous cropping and the phenomenon of soil soiling have long drawn the attention of researchers. In a detailed review of 182 documents, the author has exhaustively and exhaustively discussed this issue from the very beginning of the eighteenth century when it was created. The theory that the toxic substances secreted by plant roots have a special effect on the impoverishment of soils has been severely criticized with the development of subsequent research. Other factors such as nutrient depletion and other factors that reduce soil productivity were later discovered. At the same time, the interaction between plants and soil microorganisms and their metabolites (antibiotics, herbicides, auxins, inhibitors) has been studied locally to determine not only plant roots but also other organs (seeds, fruits, leaves) The secretions of the biological role, and a wide range of organic secretions made a detailed chemical identification.