The variation of microflora of rhizospheric and non-rhizospheric soils of soybean following main crops and continuous cropping of soybean. The results showed that the number of bacteria was predominant and that in soil of continuous cropping was less than that of soybean following main crops. The general variation scope of the number of actinomycete was little. The number of fungi varied largely and that in continuous cropping soybean was observed to be much more than that of soybean following main crops. Continuous cropping soybean made pH, water content, and the number of main microbial physiological groups declined distinctly. Therefore, soil fertility reduced. No matter the number of bacteria, actinomycete and fungi in rhizospheric area of soybean following main crops and continuous cropping of soybean was much more than in non-rhizospheric area.
Journal of Microbiology
continuous cropping soybean