Agricultural mulch can play a role of warming, freezing, moisture, regulating light, saving water, weeding and controlling soil salinity, thus promoting early ripening and improving crop quality and yield. Agricultural film varieties are more, mainly the ordinary colorless transparent film, no drop film, black film, white film, purple film, green film, blue film, red film, infrared film, transfer film, double color film, silver-gray film, Agriculture Mulch aluminum foil film, perforated film, emergence film, weeding film, heat preservation film, degradable film and anti-aging agricultural film. Agricultural film has been applied to the cultivation of all kinds of crops and cash crops and the ground cover of early rice seedling.
Agricultural plastic film light transmittance, high temperature in the film, Agriculture Mulch suitable for the spring and autumn use in two seasons. Because of the high temperature in the film, used for rice seedling raising and eggplant, sweet pepper, watermelon and other hi-temperature crops are better, for some crops easily lead to disease. The disadvantage is that the formation of droplets in the film will affect light transmission, Agriculture Mulch it is also known as a drop film.
The agricultural film is made of high pressure polyethylene resin by blowing. Thickness of 0.012-0.016 mm, good transparency, warming, moisture conservation performance, applicable to all types of areas, Agriculture Mulch all kinds of coverage, all kinds of cultivated crops, all kinds of stubble. The theoretical dosage of each mu of vegetable field is about 7-8 kg.
The types of agricultural plastic film are transparent film, black film, gray film, black and white double membrane, aluminum foil film, and so on, there are herbicides or pesticides on the surface of the film or insect-proof film; there are porous membranes that require holes to be opened according to the spacing of planted crop strains, And the thickness is only 0.008mm low pressure polyethylene thin film, Agriculture Mulch per hectare is only about 40% of the general high-pressure film.
The calculation method of mulching degree of agricultural film is expressed by the ratio of width and spacing of plastic film. Most of the coverage of the application in production is $number. Can be divided into two forms: the first seeding after the film and the first film coated after the hole sowing. Covering time, drought and less rain area, early spring or after the selection of entropy, to prevent evaporation of soil moisture, Agriculture Mulch to be suitable for sowing, to preserve seedlings. But the spring of the larger area, should not be too early to cover the film, in case of strong wind. Areas with more rainfall or sufficient soil moisture can be coated before and after sowing.
The mulching of agricultural plastic film covers the covering of the two lines and the root area, and can be divided into furrow cover, ridge cover, flat cover and trench cover.
Cover when the agricultural film should be tightened, Agriculture Mulch so that it clings to the ground, do not produce wrinkles slack or damage the film surface. The two sides of the film, both ends of the ditch to bury in the ground, the edge of the cover, pressure tight.