How to manage peanuts during the pegging stage? A detailed explanation of the latest management key points

The peanut pegging stage is the period from the beginning of flowering until 50% of the plants have developed chicken-head-shaped young pods. It is the period when peanuts shift from vegetative growth to reproductive growth, and it is also a period of high nutrient demand and sensitivity to water. Management at this time affects the later yield and quality. So how should peanuts be managed during the pegging stage? Follow the editor to learn about it.

1. Watering and fertilizing

Peanuts are relatively sensitive to water before the pegs enter the soil. If the soil moisture is poor, or if there is insufficient rain, irrigation should be carried out in time to supplement water. The pegging stage is a critical period when peanuts shift from vegetative growth to reproductive growth, and it is also a period when peanuts have relatively late and sensitive fertilizer needs. This is especially true for sandy land with poor water and fertilizer retention, where topdressing should be done in time. You can apply 100 grams of potassium fertilizer per mu. For fields with poor growth, in addition to applying potassium fertilizer, 2-3 kilograms of urea should also be added per mu to meet the fertilizer needs of peanuts.

2. Intertillage and hilling

Combine intertillage with hilling. First, use a hoe to break up the surface soil layer and mound fine soil toward the peanut roots, which helps peanuts form effective pegs. Through intertillage and shallow hoeing, the soil layer can be made loose and well aerated, and it also helps the pegs penetrate downward, improving the pod-setting rate and thus effectively increasing peanut yield. While intertilling, weeds mixed among the ridges and peanut seedlings should also be thoroughly pulled out by the roots to reduce competition between weeds and peanuts for water and nutrients, promote vigorous growth of peanut plants, and lay a foundation for high yield.

3. Spraying growth regulators

If the peanut pegging stage has high temperature and abundant rain, insufficient light, and weakened photosynthesis, it will affect the accumulation of dry matter in peanuts and lead to reduced flowering. Spraying plant growth regulators during the flowering period can significantly enhance leaf photosynthesis, increase the pollen fertilization rate, promote peanut pegging, increase the number of flowers and pods, and enhance drought resistance and disease resistance of peanuts. When using plant growth regulators, be sure to pay attention to the concentration, and spray evenly. Heavy spraying or missing spots is not advisable. They can also be mixed with borax solution and sprayed together. At the same time, for vigorously growing plants, spray paclobutrazol once from full bloom to pod-setting stage, which can significantly inhibit plant growth.

4. Pest and disease control

The main insect pests in spring peanut production include aphids, cotton bollworms, and red spider mites. Aphids can be controlled by spraying with imidacloprid. The second and third generations of cotton bollworms often move to peanut fields to cause damage and can be controlled by spraying insecticides such as beta-cypermethrin. For red spider mites, specialized agents such as pyridaben or saomanjing can be chosen for control. Spring diseases include stem rot and root rot. Prevention should be the main approach, with careful management at ordinary times to improve plant disease resistance. Spray with carbendazim or thiophanate-methyl for prevention, spraying once every week, which has an excellent control effect.

The above is an introduction to the key management points during the peanut pegging stage. We hope it can help you. To learn more related knowledge, please keep following us.