When are spring peanuts planted? How to plant?

1. Scientific selection of seeds to improve quality. Huanghuaihai production area: Spring sowing peanuts or spring sowing film-covered peanuts should choose high-quality special-purpose medium-large fruit peanut varieties with a growth period of about 125 days, and wheat-row interplanting peanuts should choose high-quality special-purpose medium-large fruit peanuts with a growth period of less than 125 days. Varieties, summer direct seeding peanuts should choose high-quality special-purpose medium-fruit peanut varieties with a growth period of about 110 days. Northeast producing area: Select medium-early-earning large-fruit varieties with a growth period of 120-130 days. Among them, high-latitude, short frost-free periods, and low accumulated temperature select early-early small-fruit varieties with a growth period of less than 120 days.

Second, sowing at the right time and quantity to improve quality. One is to determine the appropriate sowing date. In the Northeast and Huanghuaihai production areas, the sowing date of large peanuts should be controlled at 5 cm for 5 consecutive days. The ground temperature is stable at 17 ℃ or more, and the small peanuts are stable at 15 ℃ or more. It is generally from mid-late April to early May. Early to mid-April; the suitable sowing date for wheat ridge intercropping peanuts is 15-20 days before wheat harvest, generally in mid-to-late May; summer direct sowing peanuts are prepared in time after wheat harvest, sowing as soon as possible, sowing date is generally no later than June 20th. The spring sowing of peanuts in the southern production area requires a ground temperature of 5 cm to be stable above 12 ° C, sowing seeds in the cold tail and warming up. The second is to determine the appropriate sowing rate. Generally, 8000-9500 holes are planted in spring for large peanut double grains, 9000-10000 holes are planted for small peanuts, 14000-15000 grains for single grain; 15000-17000 seeds are planted for single grain per mu in summer, and double grains are planted per mu. 9500-12000 holes. The third is to do a good job of seed dressing. Shelling 10-15 days before sowing, shelling and drying for 2-3 days before shelling, removing moldy, damaged, and germinated seeds, grading preservation and grading sowing according to grain size. Choose the appropriate agent for seed dressing, the seed dressing should be uniform, sowing and sowing, the seed coat can be sown after drying, effectively preventing soil-borne diseases such as root rot, stem rot, crown rot and underground pests such as grubs.

3. Scientific fertilization and watering to promote development. Acidic soils can be supplemented with physiological alkaline calcium fertilizers such as lime; continuous cropping soils can be supplemented with lime nitrogen and biological fungus fertilizer; low fertility gravel sandy soil, coarse sand loam soil and stubble field can be supplemented with peanut rhizobia fertilizer to enhance Root nodule nitrogen fixation ability; increase the application of biological potassium fertilizer in peanut high-yield fields to promote the effective release of soil potassium. At the same time, spring peanuts and summer peanuts planted in the foot soil generally do not need watering at the seedling stage. Appropriate drought is conducive to root development, improving the plant's ability to resist drought and waterlogging, as well as shortening the first and second internodes, which is convenient for fruit prick , To increase the rate of fruit satiation; wheat seedlings appear drought at the seedling stage, watering should be timely to protect seedlings.

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