Black peanut is a new species rich in selenium, iron, zinc and other trace elements and melanin. Contains calcium, potassium, copper, zinc, iron, selenium, manganese and 8 kinds of vitamins and 19 kinds of amino acids and other nutrients needed by the body. Compared with red peanuts, black peanuts contained 5% higher crude protein content, 23.9% higher arginine content, 19% higher potassium content, 48% higher zinc content, and 101% higher selenium content. Because black peanuts are rich in selenium and other trace elements, they have a good effect in maintaining human growth and development, immune immunity, and cardiovascular and cerebrovascular health care.
I. Planting land selection: Select land, soil and water sources that have not been contaminated.
Second, the soil choice: Do not choose too fertile land, with oil sands as the best. It requires a flat terrain and convenient drainage and irrigation.
Third, the cultivation time: from early March to early May can be planted.
4. Seed treatment: The seeds are dried for three days before shelling. After the shell is peeled off, the kernels with diseases and insect pests, germinated and damaged can not be used. The rest are divided into large and small seeds and sowed at different grades. It is not appropriate to mix seeds of different sizes. Seeds of 9 kg to 10 kg per 667 square meters are soaked for 3 hours with 15 kg of water per "biological" nutrient solution to increase seed nutrient, and 50 grams of Dimethoate is used for seed disinfection. Soil disinfection was performed with 400 grams of carbendazim per 667 square meters prior to sowing.
V. Planting methods: seeding, row spacing 30 cm; hole sowing, spring sowing every 667 square meters 9497 hole, row spacing 39 cm 18 cm; summer sowing every 667 square meters 11900 holes, row spacing 35 cm 16 cm, sowing 2 seeds per hole .
Sixth, rational fertilization: base fertilizer application of biological fermentation compost 2000 kg, urea 10 kg, phosphate fertilizer 35 kg, potassium sulfate 30 kg, boron fertilizer 0.5 kg, 1 kg of zinc fertilizer; while using waste tobacco leaves dried crushed and mixed with the base fertilizer to Prevent ants. Dressing: 3-4 leaf stage sprayed with chlormequat 25-30 ml, spraying once every 7 days, even spray 3 times. In the pre-flowering period, the “biological spirit” nutrient solution was sprayed on 15 kilograms of water each time, sprayed once every 10 days, and sprayed three times. In the flowering period, the base of the plants was covered with soil so that the roots would not be excavated. After 7 days, the "Biology" nutrient solution was sprayed.
Seventh, weeding: every 667 square meters with oxalate 700 grams of water spray planting, or with 50% acetochlor EC 75 ml water 100 kg -150 kg evenly spray the ground. In the 2-3 leaf stage of peanut, 100 g of gaige sprayed water on the ground every 667 square meters. Finally weeding.
VIII. Pest Control: Peanut seedling can be sprayed with 5% Jinggangmycin water 2000 times liquid to prevent dampening. For virus-infected aphids, when the rate of peanut plants reaches 5%-10%, they are sprayed with 10% imidacloprid wettable powder 3000 times solution or 40% dimethoate emulsion 1000-1500 times solution. For brown spot, black spot, anthrax, etc., 50% carbendazim wettable powder 1000 times or 80% mancozeb wettable powder 500 times spray at the beginning of the disease, every 7-10 days 1 Times, even spray three times. When the leaves turn yellow in the growing season, the roots should be promptly inspected. Root rot was found to be sprayed 3-5 times per 667 square meters with Guoguang root root rot 50 grams for 15 kilograms of water. Prevent and treat ants, use potash powder and base fertilizer together.
Nine, field management: Peanut flowering under the needle period and the end of the period of the need for more water, if drought should be timely watering. Peanuts are afraid of embarrassment. The rainy season should pay attention to drainage, especially during the clam season to prevent waterlogging to prevent rotten fruit.
X. Appropriate harvest: The lower leaves of the plants are normally detached, and the seed coats are harvested when they appear pink. Dried in time after harvest to prevent mildew.

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