in this paper, the changes of soil microbial community by soybean continuous cropping , dominant fungi, phytotoxins produced by p. purpurogenum and it's toxicity to soybean was reported.
本论文报道了连作、轮作大豆根际土壤微生物区系变化、土壤真菌优势类群、连作大豆根际土壤真菌优势类群紫青霉菌毒素的理化特性及其作用的研究结果。
the results showed that soybean root exudates contained allelopathic compounds that inhibited seed germination and seedlings growth, and this might cause soybean continuous cropping barriers.
表明大豆根分泌物中存在抑制大豆幼苗生长的化感物质,由此可引发大豆连作障碍。
the scientific grounds for reasonable regulating mn nutrition of soybean continuous cropping and alleviating continuous cropping barriers are recommended by the study.
本研究为合理进行连作大豆锰营养调控,减轻连作障碍提供了科学依据。