Planting time and growth period of peanut

The planting time of peanut: the peanut planting area of spring and autumn double cropping in southern China was sown in the middle of February-March, the peanut intercropping area of spring and summer in the Yangtze River basin was sown at the end of March-April, and the large peanut area and peanut producing area in the north were sown from the end of April to the beginning of May. The growth period of peanuts: choose good varieties to plant, the growth period is about 110-120 days.

I. planting time of peanuts

The main results are as follows: 1. the peanut areas of spring and autumn in the south are generally sown in the middle of February and March, the big peanut areas and peanut producing areas in the north are sown from the end of April to the beginning of May, and the peanut intercropping areas in spring and summer in the Yangtze River basin are sown from March to the end of April.

2. The soil temperature should be kept above 15 ℃ for 5 consecutive days before sowing peanuts. Do not sow peanuts if the temperature is below 11 ℃, so as to prevent rotting seeds and dead seedlings, thus affecting their yield.

2. Sowing methods of peanuts

1. Peanut can be sown in open field or covered with plastic film, and its planting density can be determined according to its climate, soil fertility, selected varieties and planting conditions.

2. It is generally better to sow peanuts around 5cm, but according to the principle that the wet or sandy soil should be deep, and the clayey or dry soil should be shallow, the shallowness of planting in the open field should not be less than 3cm, and the deepest should not exceed 7cm.

3. It is necessary to suppress after sowing, which is beneficial to reduce water evaporation and make the seeds in close contact with the soil, so as to increase the moisture in the lower layer of the soil, so as to prevent the seeds from drying and improve the seed germination rate.

III. Peanut planting techniques

1. Land selection and preparation

The main results are as follows: (1) Peanut is a kind of cash crop bearing fruit in the field, so it should be planted in loose sandy soil or oil sandy soil.

(2) after selecting the planting land, it is necessary to dig deeply, and then apply about 30-40 tons of high-quality farm manure per hectare and suppress it for about 1-2 times before sowing.

2. Select varieties

The main results are as follows: (1) in order to increase peanut yield, it is necessary to select excellent varieties before sowing, such as Fuhua series varieties and Jifu series varieties, whose growth period is about 110-120 days.

(2) the pods with neat shape, large and full fruit and no broken pods can be selected. The pods should be dried for about 1-3 days before shelling, and the seeds with neat shape and pure color should be selected as seeds.

3. Rational fertilization

Peanuts do not have high requirements for fertilizer, generally apply base fertilizer first, mainly farm manure, about 30 tons of farm manure per hectare, chemical fertilizer mainly phosphate fertilizer, about 300-400 jin of diammonium phosphate per hectare, if the planting land is relatively barren, urea can be increased by about 200-300 jin per hectare.

4. Replenish seedlings with inter-seedlings

Generally speaking, seedling replenishment can be carried out from the end of May to the beginning of June. if it is found that there is a lack of seedlings, the method of promoting budding to do water seed can be used to replenish seedlings and complete the work of seedlings at the same time.

5. Qinggu squatting seedlings

When the peanuts are full of seedlings, you can dig a circle of soil around the seedlings, pick the two cotyledons out of the ground by hand, and generally squat the seedlings three days after the first shovel.

6. Shovel in time

Generally, the shovel can be opened after the seedlings are unearthed, three days after the shovel, about 15-20 days after the first shovel, pay attention to do not press the seedlings when cultivating the soil, and shovel the seedlings for the third time until the end of the flowering period, and square ridges when sealing ridges, which is beneficial to the fruit needle entering the soil, and pay attention to weeding.

7. Fertilization

During the podding and satiety period, 0.3% potassium dihydrogen phosphate and other fertilizers can be applied according to the specific growth conditions, which is helpful to promote the formation of seeds.

8. Harvest

Peanuts are generally in the middle of September. When the peanut leaves turn yellow and some of the stems and leaves dry up, they can be harvested.