Cultivation points of potato covered with ground film

Release time:

2018-03-30

The film covering spring potato has the effect of increasing temperature and moisturizing, seedling neat, early expansion, increase production and income, especially can make the altitude of 400 meters below the area of spring potato harvest in advance. Its technical points are:

Cultivation points of potato covered with ground film

Rouging requires loose and fertile soil, early plowing, fine ground preparation, it is appropriate to use a wide ridge double row film cover cultivation, the ridge width of 0.7-0.8 meters, the ridge height of 0.15-0.22 meters.

Selection of good seed selection of early maturity, high yield, good commercialization of detoxified seed potato YuYu 1, in potato 3, Sichuan taro 4, FeiWuRui it. Use healthy seed potatoes that are free of insect damage, disease spots, breakage and deformities. The amount of seed needed per mu is about 150 kilograms. Large potatoes can be cut and sown, each seed potato weighs about 30 grams, bud eyes 1-2.

Timely early sowing general altitude 400 meters below the area in mid to late December, that is, the average daily temperature of 5 ℃ before sowing, the density of 4000-5000 nest / mu, after sowing the soil cover film, the film embedded in four sides of the ditch with fine soil pressure.

Re-apply base fertilizer, increase the application of phosphorus and potassium fertilizer in the ditch before sowing, a full application of base fertilizer, generally per mu of full 2500-4000 kg of high-quality farmyard manure, 25-30 kg of calcium superphosphate, 100-150 kg of grass ash (can also be used in place of 20-25 kg of potassium sulphate), 45% composite fertilizer 50-75 kg + 1500-2000 kg of well-rotted farmyard manure.

Weed control and cover the film of serious grass plots, sowing soil after covering the film should be carried out before chemical weed control to prevent grass damage. Can mu with 50% ethoxychlorothiazide 75-100 ml whole field spraying, the application of medicine requires wet soil, field leveling, in order to improve the effect of weed control. When covering the film, it is required that the land is moist, the mud is fine and flat, the film is flat against the surface of the ridge, and the edge of the film is pressed tightly with wet soil to improve the effect of warmth and prevent the film from being uncovered by gusts of wind.

Breaking the film to release the seedling potato buds out of the top film, in time to break a small opening in the film to lead the seedling out of the film, break the film can not be too late to prevent high temperature burn seedlings, break the film hole should not be too large, otherwise affect the effect of heat preservation and cause the growth of weeds. If the final frost at this time has passed, with fine soil to put the mouth of the seedlings can be sealed tight.

Field management when the seedling height of 20-25 cm, in time to spray 100 grams of potassium dihydrogen phosphate per mu 50 kg of water for foliar fertilizer, can play a role in enhancing plant resistance, reduce disease, early maturity and improve yield. When the field appears late blight center disease plant should be early with 72% Klu 600 times spray control. Aphid control can be 10% imidacloprid 1000 times spray control.

Timely harvesting ground film cover cultivation can be earlier than the open field cultivation market about 10 days. Harvesting on a sunny day ensures the smooth appearance of potatoes, increases commercialization, snatches a gap in market sales, and improves economic benefits.

Liangshan Longchang Plastic Co., Ltd. mainly has: 2m-20m EVA multi-functional greenhouse film, metallocene long-life drip film, agricultural film, degradable film, masking film, weed control film, purple film, long-life film, preservation film, winding film, packaging film, geomembrane, water conveyor belt and so on. Sales cover Shandong region, Jin, Hebei, Henan, Jiangsu, Anhui, Shaanxi, Gansu, Ningxia, Qingdao, Tibet, southern provinces and Xinjiang, Inner Mongolia, part of the northeast provinces.

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