旱地玉米覆盖易降解淀粉膜的土壤水分动态研究

Study on Soil Water Status of Corn Mulched by Starch-polyethene Function Film in Dryland Area

旱农区降水规律和玉米需水规律不协调，覆盖易降解淀粉膜，可调用深层水，提高水分利用率，使玉米增产。

Precipitation is not in concordance with water requirement of maize in the semarid areas. Using mulching functional film can make the water in deep layer available and raise the water use efficiency, so that the production of maize can be increased.