The latest key points of Peanut Needle Management

Peanut needle stage is a period from the beginning of flowering to the appearance of chicken-head young fruit in 50% of peanuts, a period when peanuts change from vegetative growth to reproductive growth, and a period of exuberant fertilizer demand and water sensitivity, which manages the yield and quality in the later stage of the relationship. So how to manage the peanut needle period? Let's get to know it with the editor.

1. Watering and fertilization

The peanut flower needle is sensitive to water before entering the soil, and if the soil moisture is poor or Rain Water is insufficient, it should be irrigated and replenished in time. The flower needle stage is the key period for peanut vegetative growth to reproductive growth. At this time, peanuts are late and sensitive to fertilizer demand, especially for sandy land with poor water conservation and fertility. 100 grams of potash fertilizer can be applied per mu. In addition to potash fertilizer, the fields with poor growth should also be increased by 2-3 kg of urea per mu to meet the fertilizer needs of peanuts.

2. Cultivate the soil by ploughing.

In combination with mid-tillage to cultivate the soil, first of all, the hoe handle breaks the surface soil layer and heaps the fine soil to the peanut root, which is beneficial to the peanut to form an effective fruiting needle. Through ploughing and hoeing, it can not only make the soil layer loose and permeable, but also conducive to flower needle binding, through the fruit setting rate, so as to effectively improve the yield of peanut. While ploughing, the weeds mixed in the ridges and peanut seedlings should be completely removed from the roots, so as to reduce the contradiction between weeds and peanuts competing for water and fertilizer, and the peanut plants will grow strong and lay a foundation for high yield.

3. Spraying growth regulators

If the peanut needle period is high temperature and rainy, the light is insufficient, and the photosynthesis is weakened, it will affect the dry matter accumulation of peanuts and lead to the reduction of flowering. Plant growth regulators can be sprayed at flowering stage, which can obviously enhance leaf photosynthesis, improve pollen fertilization rate, promote peanut needling, increase flowering number and pod trees, and enhance peanut drought resistance and disease resistance. When using plant growth regulators, we must pay attention to the concentration, spray evenly, not re-spray, leakage spray, can also be mixed with borax solution and spray together. At the same time, for plants with exuberant growth, paclobutrazol can be sprayed once from flowering stage to podding stage, which can obviously inhibit plant growth.

4. prevention and control of diseases and insect pests

The main pests in peanut production in spring are aphids, cotton bollworm, red spiders and so on. Aphids can be sprayed with imidacloprid, and the second and third generations of Helicoverpa armigera are often transferred to peanut fields. insecticides such as cypermethrin can be used to control aphids, and special agents such as dacloprid or Saomijing can be selected for red spiders. The diseases in spring include stem rot and root rot, which should be prevented and carefully managed at ordinary times to improve the disease resistance of the plant. Carbendazim and methyl thiophanate are sprayed once every other week, which has an excellent control effect.

The above is the main points of peanut needle management, hope to help you, want to know more related knowledge, please follow us.