Accelerate the variety update. According to the rapid development of peanuts and the large market demand, actively introduce a batch of high-quality, heavy-tolerant, and widely adaptable varieties, and at the same time, continue to do a good job in the purification and rejuvenation of the original varieties.
Improve cultivation techniques. 1. Promote ridging planting methods. After rape is harvested, it must be quickly ridiculed. Usually the ridge height is 10-12 centimeters, the ridge width is 60-70 centimeters, the groove width is 20-22 centimeters, 2 rows are planted per ridge, small row spacing is 30-35 centimeters, and the hole distance is 18- 20 cm, 2 seeds per hole. In this way, soil looseness can be maintained, waterlogging can be prevented, and peanut needles can be inserted into soil to increase the rate of scarring.
2, to promote plastic film covering technology. This can not only maintain the soil moisture, cultivating strong seedlings, but also has a significant increase in production, generally increasing yield by more than 15%. After the sowing is finished, herbicide should be sprayed immediately and a linear ultra-thin plastic film should be used to cover the one-stop operation. When peanuts are topped off, the seedlings should be planted (do not wait until the main stem grows out) and then covered with loose soil. In the hole, seedlings grow membrane surface. When the main stem grows 2-3 pieces of compound leaves, clearing piers pruning, so that the cotyledons and lateral branches all on the membrane, to achieve clear seedling seedlings, give full play to the advantages of the first and second pair of lateral branch scars.
3. Promote scientific fertilization techniques. Peanut base fertilizer should be applied as early as possible, and the proportion of phosphorus and potassium fertilizer should be high. Generally in the sowing small row in the ditch deep per acre (ferment ditch deep 10 cm or more) special fertilizer for peanut 60 kg, from the initial stage of flowering and scabs from the beginning of the rooting spray fertilizer 2-3 times per acre spray 1-2% urea Liquid plus 2-3% superphosphate solution 75 kg or spray 883 foliar fertilizer 1 bottle, each interval 7-10 days.
4, to promote chemical control technology. According to the requirements of high-yielding field peanut plants, the height of the main stem is generally 35-40 cm. For this reason, 15% paclobutrazol per acre is sprayed for 30-35 days after flowering, about 30 cm for the main stem, and strong growth tendency. -60 grams. This is very obvious in controlling the promotion, preventing lodging, increasing photosynthetic efficiency, and obtaining high yield. During the expansion of pods, it can be sprayed with peanut swelling agent, which can also significantly increase the 100-grain weight of peanuts.
5, to promote integrated pest prevention technology. The pests of local peanuts mainly include cockroaches, aphids, thrips, and cotton bollworms. The diseases mainly include brown spot, black spot, rust, and root-knot nematode diseases. The disease should be selected based on the occurrence of diseases and insect pests and the prevention and control suggestions made by the plant protection department. Quasi-pharmaceuticals, control the appropriate period, do a good job of prevention and treatment.
6, to promote seedling transplanting technology. For peanuts planted and transplanted, the growth period of Daejeon is significantly shortened, the plants are dwarfed, the branches are concentrated, the flowering is concentrated, and the fruits are full, which can increase production by more than 20%. Generally 10-15 days before the rape harvest, fertile and loose plots are selected for the nursery. There are 400 holes per square meter, cover soil 3-4 centimeters thick, cover the mulch, remove the mulch in time after the top soil of the peanuts, When the first pair of true leaves is grown, seedlings can be transplanted and transplanted. Each seedling is planted with 2 seedlings, and the rooting water is poured after planting. Generally, the growth can be resumed within 1-2 days.
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