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一、地膜覆盖栽培在国内外的研究和应用概况地膜覆盖栽培也可说是保护地栽培的形式之一。最早是日本,1948年试用于草莓,1956年普及保护地草莓覆盖栽培。此后对洋葱、黄瓜、番茄、芋、甘兰、莴苣、白菜、大蒜、豌豆、马铃薯等进行试验、钅监定。到1977年全日本120万公顷旱作物(包括蔬菜),覆盖的超过20万公顷,其中保护地的地面覆盖面积占93%。目前地面复盖栽培技术已普及于广大日本农户,是进行早熟、高产不可缺少的技术措施之一。他们的地膜覆盖种类很多,除常用的透明膜,黑色有孔膜外,还有绿膜、双色系列膜、灰色条带膜、茄科杀草膜、黑白双面
First, the research and application of plastic film mulching at home and abroad Overview Mulch mulching cultivation can also be said to be one of the forms of protected cultivation. The earliest was Japan, 1948 trial for strawberry, 1956 universal protective strawberry cover cultivation. After that on the onion, cucumber, tomato, taro, cabbage, lettuce, cabbage, garlic, peas, potatoes, etc., 钅 monitoring. By 1977, 1.2 million hectares of dry crops (including vegetables) in Japan covered more than 200,000 hectares, of which the protected area covered 93% of the ground. At present, the ground cover cultivation technology has spread to a large number of Japanese farmers and is one of the indispensable technical measures for early maturity and high yield. They cover a wide range of mulch, in addition to commonly used transparent film, black perforated film, there are green film, two-color film series, gray band film, Solanaceous film, black and white double-sided