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在塑料薄膜覆盖的地面上进行某些蔬菜和经济作物的栽培,是近年来从国外引进的一项农业栽培技术。我省多点试验表明,地膜覆盖栽培有利于保水保肥,提高地温,抑制杂草、促进植株发育和作物成熟。采取这种栽培技术,蔬菜和花生的增产幅度较大,一般都增产40％左右,最高者可增产100％左右。利用这种办法,尽管每亩地增加地膜开支二十八元左右,但纯净收益仍有明显增加。因此,推广地膜覆盖栽培技术对农业增产增收很有意义。此外,地膜覆盖可使某些蔬菜提早上市,从而改善蔬菜供应。然而,实
The cultivation of certain vegetables and cash crops on the plastic film covered ground is an agricultural cultivation technique imported from abroad in recent years. More experiments in our province showed that plastic film mulching cultivation is conducive to water and fertilizer, increase ground temperature, inhibit weeds, and promote plant development and crop maturity. Take this cultivation techniques, vegetables and peanuts yield larger, generally increase about 40%, the highest yield increase of about 100%. In this way, although net profit per mu has been increased by about 28 yuan, the net profit still shows a significant increase. Therefore, the promotion of plastic film mulching cultivation of agricultural production is meaningful. In addition, mulching allows some vegetables to get to market earlier, thus improving the supply of vegetables. However, real