1. Peanut, belonging to the genus Arachis in Leguminosae, belongs to panicum miliaceum.

is an oil crop.

2. Peanut planting methods

Land selection

Peanut has a relatively high demand for geological soil. In the choice of peanut planting, sandy loam land with relatively flat terrain and strong drainage capacity should be selected. Avoid repeated cropping of peanuts. The soil planted with peanuts in the first year is not suitable for continuous planting of peanuts. It is best to choose the soil where peanuts have not been planted for several years. In addition, the soil organic matter is more than 1%, and the pH value of the soil should be between 6.5 and 7.5. Peanut planting also has certain requirements for air quality, and the air pollution index is required to be less than 1. Only by meeting these geological conditions at the same time can it be possible to grow high-yield peanuts.

Sowing

1. Sowing time

When the ground temperature of 5cm soil layer is stable at 12℃ in spring, sowing can be started. From the end of April to the beginning of May, plastic film mulching cultivation can be slightly advanced by 7 to 1 days.

2. Planting density and mode

Ridge planting: Ridge spacing is 5cm, hole spacing is 13-17cm, that is, 12,-15, holes/hectare, and two seeds are planted in each hole.

plastic film mulching border cropping: there are two methods: sowing first and then plastic film mulching and sowing first and then plastic film mulching. Mechanical sowing can be completed at one time. Two parallel ditches with a distance of 4 cm and a depth of 4-5 cm were artificially opened on the border, and 13-15 cm were left on both sides of the border. Seed fertilizer should be applied in the ditch first, and then seeds should be planted every 2 grains at equal intervals. Be sure to isolate the fertilizer seeds and cover the soil evenly, and the surface should be neat and the soil should be finely divided. If the weeding film is not covered after sowing, herbicides should be sprayed before mulching, such as Hennessy and Dor. Increase the amount of water when the soil moisture is not good. Finally, the film mulching requires that the film be adhered to the border surface without wrinkles, and the soil on both sides will make the film happy. Cover the film surface with soil to form small ridges.

Ridge cultivation

1. Clear trees and squat seedlings: when the seedlings are basically in full bloom. First, pull out the weeds around the seedlings, and then pull up the soil to expose the cotyledons to the ground. Be careful not to hurt your roots. After clearing the trees, it will take about half a month to fill the soil and bury the nest.

2. intertillage weeding: intertillage weeding is carried out for three times at seedling stage, tree-clumping stage and flowering stage. Master the principle of "shallow, deep and shallow" and pay attention to prevent the seedling from being pressed by the soil in the seedling stage; Tillage at flowering stage to prevent fruit damage.

3. soil cultivation: soil cultivation should be carried out half a month after flowering, which should not be too thick, and 3cm is appropriate.

film mulching cultivation

during the period from film mulching to seedling emergence, if the film is found to be broken or loosely covered, it should be re-buried and tightly blocked in time. When the seedlings break through the film and arch the soil and begin to expose the true leaves, scrape off the soil on the film to expose the cotyledons on the ground. If a hole is found, immediately replant it with seeds that promote germination. Before flowering, carry out intertillage weeding in the border ditch once. During the period from flowering and fruiting to pod filling, according to the growth potential of flowers, 5 times foliar fertilizer can be sprayed on the leaves instead of root topdressing, or 5 times solution of .2%-.3% potassium dihydrogen phosphate can be sprayed for 2 to 3 times, or Diguozhuangdiling can be sprayed to increase nutrient delivery, promote fruit growth and improve peanut yield. During this period, in case of drought, irrigation should be done in time.