Effects of Less-tillage and No-tillage of Maize with High Stubble on Soil Environment

The results of different tillage with many years showed that physiochemical traits of soil changed with different tillage measures. Furthermore, the volume weight of long-term and no-tillage soil was higher than continuous-tillage, the soil organic matter of long-term and no-tillage had been improved significantly than that of continuous-tillage and less-tillage, water of tillage layer of less-tillage and no-tillage was more than that of continuous-tillage. Moreover, soil organic matter of no-tillage was higher than continuous-tillage. However, there was no difference between less-tillage(5 years) and continuous-tillage(26 years), the yield of less-tillage and no-tillage had been improved with comparing of continuous.