On the Effect of Different Mulching Cultivation Methods on Soil Environment and Yield of Potato

Potato mulching cultivation is a modern high cultivation technology.Comparative trials of four different planting patterns(wheat straw,corn straw,plastic film mulching,non-mulching) were settled in longdong semiarid land in order to study effect of different mulching cultivation methods on soil temperature,moisture,soil bulk density and yield of potato.The results show that the straw mulching can improve the soil temperature evidently at low temperature.Also,the soil temperature was lower than plastic film mulching and CK at high temperature.And it can improve soil moisture content and soil bulk density.So it can increase yield of potato,the yield of corn straw mulching is significant which was 14.3% higher than wheat and straw mulching.And it was 9.1% higher than CK.These results demonstrate that it would improve soil environment and increase yield of photo,and it would only solute the problems of plastic pollution if the reasonable method was selected from all mulching cultivation methods.