Effects of Carbofuran Imidacloprid Thiram Complex Treatments on Soil Enzyme Activities in Maize Rhizosphere

High yield cultivation under field conditions,the effects of different agents,corn hybrids enzyme activity in rhizosphere soil after KD16 different concentrations. The results showed that: The rhizosphere enzyme-rhizosphere urease,alkaline phosphatase,protease,invertase and catalase activity of KD16 showed a trend of decreasing after increasing under different CT and CIT concentration treatments. However rhizosphere soil dehydrogenase activity showed a trend of declining. Compared with the CK,different concentrations of seed-coating agent CT and CIT had the most significant effect on rhizosphere urease,alkaline phosphatase,protease,invertase,catalase and dehydrogenase activity at seedling stage,and there was a positive correlation between differentiation and seed-coating agent concentration. In jointing stage,huge bellbottom stage and flowering stage,smaller CT and CIT concentration treatments had a greater influence on rhizosphere enzyme compared with seedling stage. The different treatments of CT and CIT significantly reduced the infection rate of corn plant, maked the corn plant grow stronger, and then promoted three major determinants of corn yield,increased significantly compared with the CK. In the actual production,producer can achieve the goal of high yield by using seeds mixed with seed-coating agent,and the most appropriate concentration were CT2 and CIT2.