The key technologies are as follows:
First, the selection of varieties. It is an intrinsic factor to achieve high yield of peanuts by selecting very early maturing or early maturing varieties with high yield potential. The high-yield field uses the new type of fine-grained large peanut variety "Yuyu No. 2". As long as it meets the growth period of ≥15 °C for more than 95 days, the variety is more than 400 kg per mu.
Second, land preparation. After the wheat is harvested, the wheat straw spit out from the combine harvester is evenly distributed, the grass breaker is broken, and the rotary tiller is rotated. Garlic, onions, potatoes, etc. can be rotted after harvesting, or can be directly sown without rotation.
Third, fertilization. In order to meet the high yield of peanuts and accelerate the decay of wheat straw, 30-40 kg of ammonium bicarbonate, 40-50 kg of superphosphate and 5-10 kg of potassium sulphate per mu are combined with the rotary tillage and mixed in the soil by rotary tillage. Combined with sowing, apply 10-15 kg of compound fertilizer.
Fourth, sowing. In order to ensure that the summer live peanuts have sufficient growth period, it is emphasized that the front crops are harvested and harvested after harvesting. The Ludong area strives to have an early harvest of Luxi and southwestern Shandong and south of the country before June 25, and it is more convenient to produce high-yield live peanuts in summer. Sowing with a seed drill of a disc opener, the ridge, seeding, fertilizer application, repression, spraying herbicide and other processes are completed in one time. Kind of "Yuyu 2", the ridge distance is 80-85 cm, 2 rows per ridge, between 30 cm in small row spacing, 17-20 cm in hole spacing, 2 or 1 seed per hole. Before sowing, the seeds should be graded, and seedlings with a seed amount of 0.25% of “Weifu†should be used to prevent post-emergence seedlings; use 1.0-1.5 kg of ground-killing insecticide powder per acre to prevent underground pests and seedling aphids and It is a viral vector that spreads as the main medium; with 60-90 ml "Wernes" (or 150-200 ml "acetochlor") and 2 grams of "fast-receiving" (or 80-100 ml "Nongsi") Herbicides, control all weeds in annual singles and dicotyledons; when soil moisture is poor, watering after ditching to ensure a full seedling.
Fifth, field management. In the early stage (germination and seedling stage) and mid-term (flowering stage and pod stage) of summer live peanuts, the growth and development time is faster, and the time of experience is shorter, while the late stage (full fruit ripening stage) is equivalent to or slightly longer than spring peanut. . The general principle of field management should grasp the positive growth of growth in the early stage, rapidly increase the amount of vegetative growth, actively regulate growth in the medium term and prevent leafworms such as cotton bollworm and bridgeworm in time, and actively prevent early leaves and promote early maturity in the later stage. The specific measures are as follows: 1. After 10 days from the start of peanut seedlings, start spraying 8 to 10 days and then spray two systemic insecticides and 800-1000 times of “Da Deyu†foliar fertilizer to control aphids and their transmitted viruses. disease. 2, 15-20 days after the initial flowering of the peanuts, the plant has been sprayed 800 times "close to the line" to prevent the plant from continuing to increase, which promotes the growth and development of the pod. 3. Spray insecticides when there are leafworm pests such as cotton bollworm and bridge-forming insects and leafhoppers. 4, 40-50 days after the emergence of peanuts, when the plant basically stops growing, spray 300 times "peanut high-yield film" or 800 times methyl thiophanate and "Da De 禧" mixture to prevent early defoliation.
Sixth, harvest. Summer live peanuts protect the leaves, and do not affect the sowing of the next crop, and try to delay the harvest. It can be harvested by harvester with excavation and shaking function, and the fruit is 2-3 days in the field. After transporting the fruit, the fruit is piled up, and after fully drying, picking the fruit, and lifting it into the warehouse, leaving it for the next year, the seedling is fast, and the seedling is strong.
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