渗水地膜覆盖对旱地谷子生育时期及产量的影响

Growth Stage and Yield of Dry Land Foxtail Millet(Setaria italica) under Water-Permeability Plastic Film Mulching

采用随机区组设计,设3个处理,分别为渗水地膜覆盖、普通地膜覆盖和露地,于2001年和2002年研究了不同处理对旱地谷子生育时期和产量的影响。结果表明:1)渗水地膜覆盖加快了谷子的生长发育进程,可使谷子提早成熟。2)渗水地膜覆盖处理单位面积穗数明显高于其他处理。3)渗水地膜覆盖产量与其他处理差异极显著,比露地增产50%以上。

A randomized blocks design and three treatments including water-permeability plastic film mulching, common plastic film mulching and open ground were used in this experiment. The growth stage and yield of dry land foxtail mil- let under different treatments in 2001 and 2002 were investigated. The results showed that： 1）The water-permeability plastic film mulching promoted the growth and development of foxtail millet and made it mature earlier. 2） The spike number per unit area in the water-permeability plastic film mulching was higher than that of other treatments obviously. 3） The yield under water-permeability plastic fihn mulching was highly significant compared with the other treat- ments, and increased 50% more than that under open ground .