The full-membrane-coverage technology integrates membrane surface rain collection, steam suppression, and furrow planting, which can preserve natural precipitation to the maximum extent and control surface evaporation. It can effectively intercept small amounts of rain in winter and early spring, and improve crop growth in dry land. Development of water supply capacity. Compared with conventional semi-membrane covering technology, the covering method changes from semi-membrane coverage to full-membrane coverage, and in planting mode, from flat seeding sowing to ditch planting, the covering time changes from the seeding to the autumn coating. And top Ling film.
The technology has a very significant effect on collecting rain, keeping drought, keeping seedlings, increasing temperature, promoting ripening, restraining grass and preventing disease, and increasing yield and income, and increases production by 20%-30% compared with traditional semi-membrane-covered corn. Supplemented by long-term fertilizers, drought-reducing agents, water-retaining agents and root-promoting agents, etc., cost-saving and efficiency increase, the effect of increasing production and income is even more remarkable.
Increased production and efficiency: In 2014, more than 2,000 acres were promoted in 10 provinces in the northwest and north China. The average increase in corn production was 150 kg, an increase of more than 30%; the average potato yield was 500 kg, an increase of more than 30%.
Technical points:
1.Plot selection: Choose dry farmland with deep soil layer, loose soil, medium and high fertility, good physical and chemical properties, strong water retention and fertility, and slope below 15 degrees.
2. Fertilization management: increase farmyard manure, apply chemical fertilizers scientifically, cooperate with nitrogen, phosphorus and potassium, reapply basic fertilizers, and apply topdressing fertilizers at a later stage, encourage one-time application of long-acting fertilizers, drought-resistant agents, water-retaining agents, and root-generating agents.
3. Variety selection: According to the local precipitation and heat conditions, choose the fine varieties with compact plant type, strong disease resistance, wide adaptability and large potential for yield increase.
4. Rigid coating: small ridge width 40 cm, ridge height 15 cm, large ridge width 70 cm, ridge height 10 cm, with a 120 cm wide film covering the ground, the two membranes connected in the middle of the ridge and covered with soil, 2-3 meters across the dirt belt.
5. Cultivation management: Determine the timely sowing according to local climate characteristics, and time seedlings, Dingmiao, timely fertilizer, and strengthen pest control.
Matters needing attention: Early coating, generally in mid-March, encourages autumn coating and top coating. The film was punched in the furrow in time to infiltrate the rainwater. Slopes are ridden along contour lines. Sowing should not be premature to prevent night cream damage. Pay attention to seedlings and fertilizer selection to prevent nitrogen poisoning and fertilizer damage.
Appropriate area: It is mainly used in semi-arid areas where the altitude is below 2300 meters and the annual precipitation is 250-550 mm. Appropriate crops include corn and potatoes.
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Cosmetics are natural, synthetic or extracted various effects of different substances as raw materials, heating, stirring and emulsification and other production processes from the chemical mixture. It is a compound mixture of various raw materials after reasonable mixing and processing. The raw materials of cosmetics are various in variety and performance. According to the properties and USES of cosmetic materials, they can be divided into two categories: matrix materials and auxiliary materials.
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