Effects of Different Green Manures and Enzyme Bacterial Fertilizers on Rice Biomass and Yield
In order to determine the suitable green manure and fertilization modes in the Taihu Lake Plain,an experimental study was conducted with three green manures (alfalfa,rapeseed,Chinese milk vetch) and three ferment bacterial fertilizers to analyze the effects of green manure,ferment bacterial fertilizer and their interactions on the aboveground biomass,underground biomass,1000-grain weight and yield of subsequent rice. The results showed that green manure returning could promote the accumulation of dry matter in rice. Rotation of alfalfa and rice increased the aboveground biomass of rice by 10.07％,and rotation of rapeseed and rice increased the underground biomass of rice by 7.80％. Compared with the winter fallow,the yield of rice increased by 11.03％ through rotation with rapeseed,and increased by 4.89％ through rotation with alfalfa. The ferment bacterial fertilizers significantly enhanced the biomass and yield of rice,among which the ferment bacterial fertilizer B inoculated with photosynthetic bacteria had the best comprehensive effect. Green manure and ferment bacterial fertilizer had an interactive effect on the accumulation of dry matter in rice. In summary,green manure returning and ferment bacterial fertilizer applying could increase rice biomass and yield. Rotation of rapeseed and rice and application of ferment bacterial fertilizer B is a suitable planting and fertilization mode in the Taihu Lake Plain.
万方数据
维普
