There was no significant difference of rice grain yields between the treatments of straw mulching and plastic film covering but the cost and soil pollution in the latter should be concerned.
覆膜处理虽在产量和水分利用效率上略高于盖草处理，但差异不显著，且覆膜处理存在成本高，污染土壤等缺陷。
Underground water quality in rice field under plastic film mulching cultivation was monitored during rice growth period.
对水稻覆膜旱作条件下稻田地下水水质变化作了动态检测。
Effects of plastic film mulching and pre-sowing irrigation on yield formation of spring wheat.
地膜覆盖和底墒灌溉对春小麦产量形成的影响。
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