The planting technology of plastic film peanut, the planting time is mid-May.

Varieties: select high-quality varieties with a growth period of about 120-130 days. Planting land: it is appropriate to choose fertile sandy loam with good drainage and irrigation. Soil preparation: the depth is about 20-23cm, and the soil needs to be fine and free of particles. Fertilization: farm manure and chemical fertilizer can be selected as base fertilizer. Sowing: soak the seeds and germinate and sow the seeds in mid-May. Reasonable close planting: about 65cm ridge distance, with 1.3m wide plastic film. Management: those who have uncovered the film should be covered and pressed firmly, and strengthen the prevention and control of diseases and insect pests.

I. selection of varieties

The high quality varieties with growth period of 120-130d were selected, and the active accumulated temperature was about 2500 ℃. The varieties with high yield, strong resistance, high yield and good quality were mostly in the shape of white grains.

Second, choose the planting place

It is suitable to be planted in sandy loam soil with deep soil, fertile soil, good drainage and irrigation and good water and fertilizer conservation, but not in sandy land. Plastic film peanut is suitable to be planted in millet, corn, potato, watermelon stubble and other plots. Organic fertilizer or biological fertilizer should be applied if repeated cropping.

III. Land preparation

The cultivation of plastic film mulching should be fine soil preparation to lay the foundation for high and stable yield. It is suitable for autumn ploughing after the previous crop harvest, with a depth of 20-23cm. When the land is to be ripe, shallow ploughing should be carried out in early spring, and soil moisture should be raked in time after ploughing. The soil needs to be fine and free of particles, and the ground is flat without stubble.

IV. Fertilization

1. Farm manure and chemical fertilizer can be selected to promote the growth and development of peanuts and supplement sufficient nutrient elements. Farm manure is put in 30-35 cubic meters per hectare, and those without farm manure can change stubble and apply base fertilizer with soil preparation. 45% chemical fertilizer, 450-600 kg special fertilizer for peanuts, 100-135 kg urea, 80-150 kg potash fertilizer and 150-200 kg diammonium.

2. Peanut special fertilizer and other fertilizers are used as base fertilizer. Peanut belongs to straight root system, and most of the roots are concentrated in the plough layer of 10-30 ℃. During this period, the uniform application of nitrogen, phosphorus and potassium fertilizer, combined with sufficient base fertilizer, can be divided into two stages. 2/3 of the fertilizer is applied with soil preparation in early spring, and 1/3 of the fertilizer is applied below the 10cm plough layer during ridging.

5. Sowing seeds

The main results are as follows: 1. Choose vigorously germinated peanuts as seeds, sun up peanuts before sowing to break dormancy, promote post-ripening and improve seed vigor, sow seeds and sow in mid-May after germination, which can also be decided according to the local climate, or in 5 days, the average ground temperature of 5-10cm plough layer is stable above 13 ℃, planting plastic film peanuts can increase the ground temperature, can be appropriate earlier.

2. You can use a film mulching machine to sow seeds under a good soil moisture, and then spray herbicides after sowing, or rake flat after sowing, and then spray herbicides to cover the film manually, with an average of two seeds per hole, and the plastic film should be close to the ridge surface. throw two spades every 3 meters to prevent the wind from lifting the film.

VI. Reasonable close planting

It is suggested that the ridge distance of 65cm should be covered with 1.3m wide plastic film and 2 ridges, and the hole spacing should be 20cm, and the seedling protection should be about 220000 plants per hectare. It is also possible to use three rows of plastic film covering big ridges, that is, two natural ridges, to form one big ridge, to plant three rows on the ridge, and to use the small row spacing in 35cm, which can make rational use of light energy and soil fertility.

VII. Post-management

1. After sowing, the protective film should be checked frequently, and if there is a break in the film or plastic film, it is necessary to cover and press it in time, keep the temperature increased and preserve moisture, introduce seedlings after emergence, seal the film holes with wet soil, cooperate with the introduction of seedlings, dig out the first pair of lateral techniques out of the film, and clear the mound on the film holes, and check the seedlings and replant in time after the seedlings come out.

2. During the period of growth and development, we should do a good job of film protection, avoid the wind to trample people and animals, and strengthen the prevention and control of diseases and insect pests, mainly early stem rot, crown rot, root rot, middle and later leaf class disease, which can be applied with internal absorption fungicide plus foliar fertilizer. When there are aphids and red spiders, omethoate imidacloprid is used to control aphids and acaricides such as vermectin to control red spiders.

VIII. Points for attention

The selected varieties should be suitable for planting, the growth period should be moderate, the early-maturing varieties should not be covered with plastic film, which is easy to cause premature senescence, the plastic film should not be stretched too much to avoid breaking, the opening of the seedlings should not be too early or too late, and the soil must be pressed 3-5cm thick.