The Impact On Growth And Yield Of Corn After Sprayed The Straw Rapid Composting Agent On The Corn Straws Which Return To The Field

The temperature is low at the northeast of China in winter, the rate of straw returning is slow, so a lot of straw cover would inhibit the growth and development of crops. This project aims to accelerate straw decomposition speed through the introduction of imported products--the straw rapid composting agent, Search on the benefit of the treated farmland which buried or covered by straw that deal with different dosage Inoculant (BiOWiSH)The effective of cover Straw into farmland suggests that, after covering Straw into farmland uses straw inoculants, the speed of the corn straw rot dose not obvious increase. The straw exposes in the air, and the air relative humidity can not keep in the relative high level,this causes bury Straw into farmland contained low water, all these reasons result that cover Straw into farmland has not obvious effective.The study of corn growth and production when bury Straw into farmland after straw inoculants deals pieces straw suggests that, bury Straw into farmland after straw inoculants deals pieces straw has apparent effective in corn production, and the best usage straw inoculants is2.0kg/hm2, it increases978.4kg/hm2than nomal,the production enhances7.8%.Bury Straw into farmland after straw inoculants deals pieces straw can obvious increase corn overground part dry weight,100-kerne weight and Kernels weight of ear at later stages.During analyses of the corn leaf blade physical signs after straw inoculants deals pieces straw,the results suggest that this way can increase the specific leaf weight, the Chlorophyll content, the net photosynthetic rate and the root vitality at later stages, BiOWiSH deals with pieces corn straw and buried in the field enhances corn production is the physiology basic, and the better BiOWiSH application rates is2.0kg/hm2.