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选择大豆主产区黑龙江省西部盐碱土壤,以转BADH基因大豆和非转基因大豆亲本(简称为亲本)为材料,在大豆苗期、花期、结荚期、鼓粒期和成熟期分别取样,研究转基因大豆对根际微生物量的影响。结果表明,转BADH基因大豆对根际微生物量碳无显著影响,能够促进大豆生育后期(结荚期、鼓粒期和成熟期)土壤微生物量氮含量,对微生物量碳氮比的影响存在时期差异。转BADH基因大豆对土壤微生物量无显著不良影响。
The saline soils in the western part of Heilongjiang Province, a major soybean producing area, were selected to take samples of transgenic BADH soybeans and non-transgenic soybeans (referred to as parents) for soybean seedling stage, flowering stage, podding stage, druming stage and maturity stage respectively, The effect of transgenic soybean on rhizosphere microbial biomass was studied. The results showed that transgenic BADH soybeans had no significant effect on rhizosphere microbial biomass carbon, which could promote soil microbial biomass nitrogen at the later growth stage (during the podding stage, druming stage and maturity stage), and had an impact on the microbial biomass C / N ratio difference. The transgenic BADH soybean showed no significant adverse effects on soil microbial biomass.