High-yield cultivation techniques of peanut

First, rational cultivation and fertilization, lay a good foundation for soil and fertilizer

The selection of land should be based on the loose soil, convenient drainage and irrigation, after two years of rotation, the next year, the middle and upper fertilizer fields. High-yield peanuts require deep, live, loose soil structures and upper Panasonic soil layers.

Promptly after plowing Shaitian previous crop harvest winter plowing, cultivating 20--23 cm, aged plow layer. Shallow ploughing in early spring, smooth and smooth after ploughing, so that the ground is flat.

Basal fertilizer was applied to a one-time method, Mushi home manure 1000 kg, 50 kg or peanut special fertilizer 75 kg of fertilizer, superphosphate plus 40 - 50 kg, 10 kg of potassium chloride, 1 kg of borax to the plow Apply all the layers evenly before turning.

Second, choose high-yield varieties and give play to the advantages of good varieties

High-yield fields should choose medium-ripe large fruit, stems and branches are thick and tidy, strong growth, erect and lodging resistance, and the results of single plant and high fruit rate are high.

Third, wide rows of narrow plants densely planted, cultivate robust seedlings

The planting method of wide-row narrow planting is adopted, that is , the ditch is 1.6 m per ditch, the ditch width is 0.30 m, 5 rows per planting, and 2 seed kernels are planted per hole , with a row spacing of 0.25 m and a plant spacing of 0.18 m. Seeding density of 1.9 mu - 23,000 seeds (strain).

Fourth, the use of plastic film cultivation, insulation moisture layer loose

Spring planting peanut cultivation not only allows the use of coated peanut sowing of early 10--15 days, and can achieve the purpose of holding moisture, the film's plot, loose soil can be maintained throughout the growing season, very conducive to improve the seed peanuts Rate and fullness rate.

 

After the seeding is completed, before the film is covered, the film should be covered with a thin water, and the film is pressed with the soil to seal it. The kneading surface should be pressed with the mud in the proper position to prevent the film from being blown away by the wind. crack. When the peanut seedlings grow green, the artificial punching should be carried out in time to help the seedlings grow out.

5. Controlling seedlings and disease prevention management to ensure stable production and high yield

Peanut high-yield fields use one-time fertilization technology, and the soil base fertility is high. The peanut population plants are prone to prolonged in the early stage and prone to premature aging in the later stage. Therefore, in the management, we should do a good job in controlling seedlings and disease prevention to ensure the stable production and high yield of peanuts. The main measures are as follows:

After flowering control Peanut seedlings 40 - 50 days or peanut early pod, when the plants grow to 30 cm, the spraying should be 70--100 mg / liter aqueous PP333, available per acre liquid 50--75 liters. Peanut plants can be dwarfed and prevented from falling. If the growth is still too strong after spraying, spray it again every 10 days to ensure the height of the plant is 30 - 40 cm.

15 pest control in peanuts start Flowers - 20 days according to the disease leaf spot, every 10 - 15 days 25% of the spraying carbendazim 500 times, a total of 2--3 times, prevention and control of thistle seedling Horses and aphids, attention to the control of cotton bollworms during the flowering and pod-forming stages.

Foliar application may be in the pod after the foliar application of 1% and 2% urea solution --3 percent superphosphate 1--2 times.

Appropriate watering of peanuts is a drought-tolerant crop. The water demand varies greatly during each growth period. For example, the amount of water required for planting to emergence is small, followed by emergence from flowering to flowering, and sufficient for flowering to pod formation. Moisture, and the supply of water should be reduced from pod to maturity. Drought in each stage of growth has an impact on yield, with the greatest impact on drought during the pod-forming period.