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本文在于探索塑料薄膜地面覆盖栽培蔬菜在我区的适应性和增产效果。试验结果表明,豇豆(Vigna sesquipedalis Wight)地膜覆盖在植株生长前期,土壤的温度比对照高,有保温、保水、保肥、防虫及防除杂草的作用,到生长中后期有降低土温,保持土壤疏松的作用。覆膜区比对照区种子提早发芽,生长快,地上部及地下部的生长量增加,促进发育,提早采收。前期产量及产值增加极显著,每亩增产率为169.12％,增值率为169.16％;总产量的增产率为27.73％,总产值的增值率为30.04％,均达到显著水平。此外,覆膜比对照每亩增收122.51元,提高经济效益。通过初步试验,效果是明显的,可在我区进一步扩大试验,逐步推广应用。
This article is to explore the plastic film covering the cultivation of vegetables in my area of adaptability and yield. The results showed that the cover of Vigna sesquipedalis Wight was in the early stage of plant growth. The temperature of the soil was higher than that of the control. It had the effects of keeping temperature, keeping water, keeping fertilizer, preventing pest and controlling weeds. Soil loose effect. Compared with the control, the covered area of the film had germinated earlier and grew faster. The growth of shoots and underground parts increased, which promoted the development and early harvesting. The yield and output value of the previous period increased significantly. The yield per acre was 169.12% and the value added rate was 169.16%. The yield increase rate of the total output was 27.73% and the value added rate of the total output value was 30.04%, both of which reached significant levels. In addition, the film than the control income per mu 122.51 yuan, improve economic efficiency. Through the initial test, the effect is obvious, we can further expand the test in our area, and gradually promote the application.