Scientific planting Technology of Black Peanut

Black peanut is a kind of colored peanut. Black peanuts, also known as selenium-rich black peanuts, black peanuts.

It belongs to precocious, large-grained peanuts. The whole growth period of spring sowing is about 130 days, and summer sowing is about 110 days. Steady growth, generally will not appear crazy growth, dark green with black leaves, plant height of 45 cm, high resistance to lodging. The number of continuous flowering is large, the seed setting rate is high, and the yield per mu is about 450 kg. If plastic film mulching cultivation is adopted, the yield per mu can reach 500 kg.

Black peanut has strong resistance to drought and disease, and is suitable for planting in medium or above fertility and sandy loam. It can be sown in spring or summer, and it can be sown directly after wheat stubble in the north. Generally, the sowing rate per mu is 9000mu, with 2mu 3 grains per hole. Cultivation methods and other management measures can refer to local peanut varieties.

First, black peanut is not strict on soil, it is suitable for planting in all kinds of soil with pH 5.5-7.2, and it is best in the soil with deep soil layer, plough layer activity, good soil property and good drainage.

Second, the plots where black peanuts are planted should be ploughed 25cm deep, and 25003000kg of farm manure should be applied in combination with winter ploughing. The following year, the Spring Equinox began shallow ploughing of 10cm to 13cm. It is necessary to rake along with the ploughing and preserve the soil moisture. When the soil temperature at the depth of 5 cm is more than 15 ℃, the seeds can be sown. Seed dressing should be carried out before sowing: 50% phoxim 100 g mixed with 50 kg seeds can prevent insect pests; 40% 50% carbendazim 150 kg 250 g seed dressing 50 kg can prevent stem rot.

Third, black peanuts are required to be planted in ridges. Ridging planting can deepen the living soil layer, make it exposed to light on three sides, increase the ground temperature, and be beneficial to the growth and development of fruit needles and pods. Single-row sowing, plant spacing of about 20 cm, ridging when applying 50 kilograms of peanut special fertilizer per mu. Ridging and sowing should be done at any time. According to the soil conditions, 8000 plants per mu were planted. It is best to use the method of plastic film mulching. The height of the ridge should be too high, not only the ridge surface is not easy to keep wide, but also the lower edge of the ridge slope is not strictly covered and pressed, and the plastic film is easy to be blown off by the wind; too low is not conducive to drainage.

Fourth, within 1-2 days after sowing, herbicides should be sprayed to close the soil for weeding. Black peanut is a kind of colored peanut.