The mulching spring peanuts have a large planting area in the Jizhongnan and Jidong plains. This model is an efficient planting pattern in peanut spring production. The use of plastic film covering cultivation can achieve early sowing of peanuts, increase production, and the morning market, increase the multiple cropping index, and increase planting efficiency. Peanuts should be prepared before and after sowing in six aspects.
First, choose the soil. Peanut is a kind of oil crop that is resistant to drought and thin, especially sandy loam with good permeability and large temperature difference between day and night. The plots that have not grown peanuts or bean crops in Shangyu County are better, such as scallions, corn husks, and vegetable pods.
Second, choose the best species. Covering the film can increase the soil temperature, enhance the ability to maintain grasshoppers, and increase fertilizer utilization. Peanut root system developed, the absorption and utilization of nutrients is high, so the increase in peanut production is more significant. In order to increase planting efficiency, cultivar-covered cultivation should be based on varieties with large yield potential, high yield, and strong disease resistance. For example, Daihua No. 2, Daihua No. 6, Shaohua No. 4 and Luhua 11 , flower breeding 18 and other varieties.
Third, formula fertilization. Peanut is a high-yielding oil crop and has a large demand for fertilizer because it has a nitrogen fixation and the demand for nitrogen fertilizer is not very large, but the demand for phosphorus and potassium fertilizers is relatively large. In order to achieve high yields of mulch spring peanuts, it is necessary to ensure sufficient supply of nutrients and to use organic fertilizers in combination with chemical fertilizers. All organic fertilizers were used as base fertilizers at one time. Mushi farmyard fertilizer was 5000 kg and potassium sulfate compound fertilizer was 50 kg. The application of calcium fertilizer can effectively prevent rotten fruit disease and "black plaster spots", and apply 50 kilograms of superphosphate calcium phosphate fertilizer per acre. The increase of 1 kg of boron fertilizer and zinc fertilizer can significantly increase the fruit setting rate and increase the fullness of mango fruit.
Fourth, drug seed dressing. Peeling shells of peanut seeds prematurely can easily lead to a decline in seed quality. The seeds lose the protection of their outer shells, and they can absorb the harmful gases and harmful substances in the air. The activity is greatly reduced. Peel the seeds of peanuts half a month before sowing. It is better to store the peeled seeds in a woven bag and store them in a ventilated and dry place. Before and after 3-5 days of sowing, choose sunny days before and after noon, lay newspapers on the mud or cement ground, spread the peanut seeds to dry for 3-5 hours. The tanned seeds were sorted and ranked, and diseased grains, residual grains, and germinated grains were picked out. Afterwards, the use of fungicides and other fungicides for seed dressing can effectively prevent stem rot and root rot.
Fifth, timely sowing. There are often two types of misunderstandings in production. One is early sowing, and peanut seeding is too early. Due to unstable temperatures in the early spring and even a cold spring or cold wave, it poses a great threat to the early sowing of peanuts. At the very least, the lack of seedlings and ridges are severe, resulting in severe deterrence. The other is delayed sowing. Delayed sowing time, the role of plastic film coverage can not be fully realized, the corresponding delay in the listing period will affect the income of growers. Tests have shown that the sowing date of mulching spring peanuts is generally about 10 days earlier than spring sowing in open field, and is generally suitable for April 15-20 in the central and southern parts of Fujian, and delayed one week in eastern Anhui.
Six, suitable density. The density of cultivating spring peanuts should not be too small or too large, too small will affect the yield, the result rate of excessively large single plants will decline, the seeds will be wasted, and the yield will be reduced. Starting from the first, the base is 85-90 cm wide, 50-55 cm wide at the top and 10-12 cm high. Production usually uses a double film cultivation mode. The row spacing is controlled at 30 cm, the plant spacing is 15-18 cm, and the mu density is about 10,000 holes. Each hole has two grains and the amount of mu is 16 kg.
Multi Span Plastic Film Greenhouse
Arch greenhouse is a kind of economical greenhouse, which is welcomed by the users with graceful curve form and low cost. It has beautiful appearance, fluent visual, reasonable structure and good performance for keep temperature. It is economical greenhouse because of its relatively low manufacturing cost. It can be applied in most areas of China. Double membrane greenhouse is used more in north of China, while single film greenhouse is used more in southern region. It can get maximum sunlight when visible light is within the scope of 0.4 to 0.7 microns and form a thick envelope, which can effectively prevent heat loss and prevent the invasion of cold air. Adopting a double membrane can greatly improve heat preservation performance of the greenhouse and save operating cost. The top cover material is polyethylene lifelong anti-fog and anti-dipping film po-covering. The outer of it has the function of UV protection and the inner has the function of preventing from the sets of dew. According to the needs of customers, the sides of the greenhouse can be covered with polyethylene lifelong anti-fog and anti-dripping po-covering or polycarbonate hollow plate.
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