Effects of application of different fertilizers on rice growth and nutrient absorption

The effects of different fertilizers on rice growth and nutrient absorption were studied by pot experiments.The results showed that the full grain weight of different treatments all reached the maximum when the application of nitrogen were 150 mg / kg.The average yield in the treatment with organic-inorganic compound fertilizer composted by pig manure and rice straw was higher than that in the others.Contrary to the ratio of grain / straw,the rate of empty husk increased with the increase of the application of nitrogen.The N and P accumulations in rice straw also increased with the N application,but the K accumulation in rice straw was different.The N and P accumulations in rice straw showed significant positive correlation,while the N and K,P and K accumulation in rice straw showed significant negative correlations.