Effects of plastic film and straw mulching on field environment and yield of maize

The field experiment was conducted to study the effects of plastic film and straw mulching on field environment and yield of maize.The results show that the temperature in crown layer of maize can be decreased by 1～2℃，and the evaporation of maize field is reduced significantly.In addition,the preservation effect on soil heat is also obvious.Therefore,the yield and water use efficiency(WUE)of maize can be raised significantly.