ĐÁNH GIÁ HIỆU QUẢ CỦA MÙN HỮU CƠ SAU XỬ LÝ RƠM RẠ BẰNG CHẾ PHẨM VI SINH VẬT ĐẾN CÂY LÚA VÀ ĐỘ PHÌ ĐẤT TẠI THÁI BÌNH

Experiment was conducted in Thuy Phong, Thai Thuy, Thai Binh in Autum- Summer crop 2010 to test the effect of humus produce from rice straw treatment to the growth, development, yield and as well as quality of soil. Application of 70% amount of N-P-K fertilizers together with humus after rice straw treament by microbial preparation had positive effect to growth, development and increased the rice yield 9.34% comparison with the use of 100% amount of N-P-K fertilizers (90 N + 60 P2O5 + 60 K2O), increased the rice yield 23.8% compared with no treatment rice straw by microbial preparation and 19.67 with treatment by burning of rice straw. Beside the use of humus was increased total nitrogen, phosphorus, potassium and supply small amount of available phosphorus and potassium for soil. Application of microbial preparation to treat rice straw was provided nutrients for rice and reduced 30% mineral fertilizer follows advice and not affected to the yield of rice compared with local habits in cultivation of rice.