The effect of reducing the application amount of compound fertilizer on the yield and nutrient content of film mulching cultivation rice

The effects of compound fertilizer applied with organic fertilizer(pickle leaves)on the yield,nutrient absorption and utilization rate of film mulching cultivation rice are studied by field test.The results show that,the yield of film mulching cultivation rice with reducing the compound fertilizer application amount of 20% fertilizer is increased by 6.9% as compared with that of CK(flooded cultivation).When compound fertilizer applied with organic fertilizer,the rice yield is observably increased by 14.3%-19%,and the utilization rate of nitrogen,phosphorous and potassium is increased by 4.7-26.1 percentage points compared with CK.It is a highly effective way for improving the rice yield and economizing the fertilizer that the compound fertilizer application amount is reduced by 20% and applied with 15 ~ 30 t/hm2 organic fertilizer in the purple soil field of film mulching cultivation rice.