RESEARCH ON APPLICATION OF MICROBIAL PREPARATION TO TREAT STRAW INTO MICRO-ORGANIC FERTILIZER FOR VEGETABLE GROWING REGIONS IN THE SUBURB OF HANOI.

Abstract

The micro-organic fertilizer plays an important role in the agriculture of Vietnam. The use of micro-organic fertilizer from straw for crops not only helps to clean environment, creates spongy soil, makes easy to culture, keeps moisture, prevents erosion and washing out, but also gives back nutrients to the soil that plants uptake during growing, reduces using chemical fertilizers, contributes to build a clean and safe organic agriculture. The field trials on vegetables as tomato in Me Linh, Ha Noi; kohlrabi in Dong Anh, Ha Noi; cucumber in Ung Hoa, Ha Noi in the Summer – Spring season 2013 have shown the positive effects of micro-organic fertilizer (that was produced from straw) on cultivation of vegetables. When using micro-organic fertilizer and 80% NPK fertilizer, then the yield of kohlrabi increases by 20%; cucumber - 15,2%; tomato - 18,5% respectively compared to the control method (only apply NPK fertilizer). Besides, using micro-organic fertilizer also decreases 70-80% bacterial wilt disease caused by R. solanacearum in comparison with the control formula.