Comparison Tests of Effect of Four Kinds of Straw Decomposition Agent on Rice Yield

In field conditions, the effects of straw decomposition agent on seedling growth and rice yield and wheat straw solution rate,soil microorganisms and soil fertility were studied. The results showed that when the straw returning straw decomposition additive could improve the rice yield obviously; chopped straw plowing and mulching with straw decomposition agent can be significantly,straw decomposition additive can improve soil microbial quantity, promote straw rapidly decomposing, can increase the organic matter,improve the ability of soil and fertilizer.