| The benefit of plastic mulch cultivation of maize has bee n studied in desert fringe area. The results shows that the yield is increased by 1 586.2 kg/hm2 than no mulch, the increase percentage is 24.5%, and the n et o utput is increased by 16.64%. This cultivation technique can alleviate the contr adiction of water resource shortage, and it can also produce multiple eological effects, such as evaporation controlling, soil moisture keeping and soil sofenin g. Furthermore, the paper discusses some existing problems in maize mulch cultiv ation. |