Effects of Whole Plastic-Film Mulching on Arid Sugarcane Yield and Sugar in Dry Land

3different plastic film mulching methods,including Whole Plastic-Film Mulching,Plastic film with 40 cm wide and No Plastic-Film Mulching,are used in this research to study the impact of plastic film mulching on soil water-retention,seed germination,yield,and sugar content of sugarcane.The results show that the soil moisture content of 20 cm of Whole Plastic-Film Mulching is significantly higher than that of Plastic film with 40 cm wide at the harvest time;seed germination,seedling height,and yield of 3treatment is significantly different and follow a descending order of Whole Plastic-Film Mulching,Plastic film with 40 cm wide and No Plastic-Film Mulching.The sugar content of 3treatments has no significantly different.