Study of Growth season and Yield of Water-permeability Plastic Film Mulching on Sorghum

The experiment design was randomized blocks about three treatments including water-permeability plastic film mulching,common plastic film mulching and open ground.The experiment studied growth season and yield of different treatments on sorghum.The result had showed:1)The water-permeability plastic film mulching promoted the growth and development of sorghum,so sorghum could mature earlier.2) The ear number per hectare,the grain weight per ear,1000-grain weight,economic coefficient,spike length and spike width of the water-permeability plastic film mulching were the highest of the three treatments'.3)The yield variance of water-permeability plastic film mulching,common plastic film mulching and open ground reached 0.05 significant level,and the yield of water-permeability plastic film mulching increased by 20.% than open ground's.