Spring Peanut Plastic Film Covering Cultivation Technique

The city is the main peanut producing area in the province, and the early peanut cultivation area is nearly 500,000 mu. However, due to the low temperature, cloudy rain, and early sunshine of the spring peanuts in recent years, and the drought at high temperature in the later period, there are often early sowing and rotten seedlings on the production. The low rate and late sowing of drought-prone aflatoxin resulted in decreased quality and low yield of peanuts. In order to overcome the problems in production, we should vigorously promote peanut mulching technology, measures are as follows: First, fine soil preparation, application of basal film cultivation peanut selection soil loose drainage and irrigation convenient, after two years of rotation in the middle of the fertilizer field, using every other year plow Winter sun-whitening, per acre before planting, arranging 1,000 kg of home-cooked fertilizer, 50 kg of special compound fertilizer for peanuts and 1 kg of borax, or 75 kg of domestic-made compound fertilizer under a full-layer application before plowing, and rapidly plowing and turning. Flat, ripening the entire layer of soil. Second, the appropriate period of early sowing film peanut seeding time can be advanced 15-20 days. From the middle and late March in the past to the late February sowing, beginning May 10 before and after the harvest, in mid-July, the whole growing period of more than 135 days. The whole growth period of comparable groundnut peanuts was prolonged by 15-20 days, increasing the accumulation of organic matter. Third, the wide line narrow plant dense planting, make full use of light energy After many years of practice has proved that the use of small pot deep groove, wide line narrow planting method of planting, is to play the edge advantage, make full use of light energy, to establish an excellent group of peanuts Structure laid the foundation. The specific operation is: 畦 width of 1.4 meters Baogou (ditch width of 33.3 cm), 畦 surface width of 1.07 meters, sowing 4 lines, both sides of the row spacing 9.9 cm, the middle width of the spacing of 39.6 cm, both sides of the narrow row spacing of 23 cm, the hole distance 19 cm The sowing density was 1.9-2.3 million seeds (strain). Fourth, timely cover film and cut (lift) film selection width of 1.5 meters, thickness of 0.008 mm mulch, film amount of 5 kg per acre, sowing is completed, plus spray herbicide line after the film, the edge of the plastic film to be used Tightly, make it sealed, the smashing surface should be pressed in place with a piece of mud to prevent the film from being blown open and torn by the wind. When the peanut seedlings grow to 2.5 leaves, half-covered growers should remove the film in the afternoon; full-coverage growers should promptly perform manual punching to help shoot length. The method is to use a scissors or a blade to cut the film on each hole of the peanuts, the size of the hole is about 9cm2. 5. Chemical herbicide must be sprayed before spraying the herbicide and growth retardant cover film. The method is to apply butachlor or more emulsion 125-150 grams per mu, and evenly spray 50 kilograms of water. Then cover the film and kill most of the weeds. Plastic film covering peanut plants is prone to prolonged lodging. Chloride must be sprayed in a timely manner at the early stage of peanut pods, ie, from June 10 to 20, with chlormequat B per acre. Or a small packet of compound paclobutrazol, 50 kg evenly sprayed on the leaf surface, can make the peanut plant dwarf, and prevent leggy lodging. If the growth is still too strong after spraying, spray it once again every 10 days or so. Sixth, scientific management, ensure high yield 1. Re-apply "weaning fat", clever attack strong fruit fertilizer. When the peanut seedlings grow to three leaves, 10-12.5 kg of urea is applied per acre. At the beginning of the flowering period, urea 4-5 kg ​​plus potassium chloride 7.5 kg. After harvesting, 30-40 kg of lime is used for Mushi to promote flowering and increase the fruit rate. 2. Disease prevention and extermination. In mid-June, leaf spot disease, leaf rust in early July, aphid infestation of peanut seedlings, and larvae of moth larvae in late June, should be selected for the timely prevention and control of pesticides. 3. Spraying "three in one" to prevent insects and protect the leaves. That is, foliar fertilizers, fungicides, and insecticides are mixed and sprayed. One hundred grams of potassium dihydrogen phosphate per acre, one third of the plants, 100 grams of diaphylaxis or 50% of hexachlorophosphorus chlorothalonil 100 grams, 100 kg of water, respectively, in the early flowering, flowering and The spray period is sprayed once. 4. Scientific irrigation and drainage, prevention of drought and bumper harvest. Against the pre- and late-season peanuts, the fear of drought and the mid-term fear of drought characteristics, seedlings to prevent waterlogging, water irrigation in the medium term to prevent drought, and later to keep the fields wet, scab to harvest.

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