【摘 要】
：
据国内有关方面研究表明,采用“有孔地膜”覆盖作物,具有诸多优点: 一、调节膜内土壤温度。其膜内最高温度可比普通地膜降低3～6℃,而5厘米土层深处清晨最低温则可提高0.5～2℃,
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据国内有关方面研究表明,采用“有孔地膜”覆盖作物,具有诸多优点: 一、调节膜内土壤温度。其膜内最高温度可比普通地膜降低3～6℃,而5厘米土层深处清晨最低温则可提高0.5～2℃,从
According to the domestic research shows that the use of “perforated film ” covering crops, has many advantages: First, the regulation of soil temperature within the membrane. The highest temperature in the film can be reduced by 3 ~ 6 ℃ than that of ordinary film, while the lowest temperature in the depth of 5 cm can be increased by 0.5 ~ 2 ℃ in the early morning.
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