After wheat is harvested, the mulch spring peanut is in the period of vegetative growth to reproductive growth. It is also the stage where fruit needles fall and fruit buds germinate quickly. The requirements for water and fertilizer are high, and cotton bollworm, armyworm, spider mite, pupa, stem rot etc. The occurrence of pests and diseases and the management of field management at this stage is the key to realizing the high yield of peanuts. Below, based on our management experience, we will introduce to you the current management points of mulching peanuts for your reference.
1, scientific management of fertilizer. This period is in the period of flower pin down and pod expansion. It is also the most sensitive period to the response of water. If the soil moisture is poor, the fruit can not be timely soiled, it will affect the rate of results, and thus further affect the yield. Recently, the majority of areas in our province have arid and dry conditions, and the soil moisture is generally poor. It is necessary to supply enough water to increase the number of flowering needles and increase production. The expansion phase of the mango fruit is also the peak period of fertilizer demand. If the base fertilizer is insufficient, top dressing should be carried out according to the growing conditions in the field. Nitrogen, phosphorus, and potassium ternary compound fertilizers should be used. Generally, 20-30 kilograms of fertilizer should be applied per acre. The sand land should be divided into two to three times. It is necessary to combine top dressing with watering so as to increase fertilizer efficiency.
2, timely control. After the peanuts have entered the flowering stage, 15 grams of Jindele (a special peanut conditioner) per acre is used to spray 20 kg of water. Generally, it can be sprayed twice, sprayed once in early July, and sprayed once in mid-August. When the chemical is controlled, the concentration of liquid medicine should be appropriately increased for lands with long growing trend, high planting density, fertile soil and sufficient fertility. , If you encounter rainy weather conditions, you have to reapply. When dispensing, it is required to mix evenly, with the spray along the spray, the atomization effect is better, to prevent the local spray concentration is too high, and produce phytotoxicity and affect the output.
3, foliar spray fertilizer to prevent premature aging. When peanuts enter the late growth stage, the absorption capacity of the root system will gradually weaken and the leaf absorption capacity is still strong. If the supply of nutrients is insufficient, the parietal lobe is apt to fall off, and the stems and leaves decay early, which will directly affect the yield. At this time, the foliar fertilizer should be applied in time, and 0.2%-0.3% potassium dihydrogen phosphate aqueous solution or 0.3%-0.4% urea and superphosphate mixed liquid can be applied 1-2 times to prolong the functional period of the leaf and prevent it. Premature decline, increase fruit rate.
4, control of pests and diseases. Doing a good job of pest control is an important guarantee for improving production and quality.
The prevention and control of earthworms and other underground pests must not be paralyzed, so that appropriate scientific control can be achieved. In the middle and late July, 50% phoxim 1500 times solution can be used to irrigate the roots, and the average mu is 1-1.5 kg.
To control peanut stem rot, mancozeb, carbendazim and other fungicides can be used for chemical control.
Prevention of spider mites can be used.
Imidacloprid was used to control aphids.
Prevention and control of cotton bollworm, armyworm and other pests can use silver standard, multi-hit, hundred insects and other high-efficiency and low toxicity pesticide spray control.
1, scientific management of fertilizer. This period is in the period of flower pin down and pod expansion. It is also the most sensitive period to the response of water. If the soil moisture is poor, the fruit can not be timely soiled, it will affect the rate of results, and thus further affect the yield. Recently, the majority of areas in our province have arid and dry conditions, and the soil moisture is generally poor. It is necessary to supply enough water to increase the number of flowering needles and increase production. The expansion phase of the mango fruit is also the peak period of fertilizer demand. If the base fertilizer is insufficient, top dressing should be carried out according to the growing conditions in the field. Nitrogen, phosphorus, and potassium ternary compound fertilizers should be used. Generally, 20-30 kilograms of fertilizer should be applied per acre. The sand land should be divided into two to three times. It is necessary to combine top dressing with watering so as to increase fertilizer efficiency.
2, timely control. After the peanuts have entered the flowering stage, 15 grams of Jindele (a special peanut conditioner) per acre is used to spray 20 kg of water. Generally, it can be sprayed twice, sprayed once in early July, and sprayed once in mid-August. When the chemical is controlled, the concentration of liquid medicine should be appropriately increased for lands with long growing trend, high planting density, fertile soil and sufficient fertility. , If you encounter rainy weather conditions, you have to reapply. When dispensing, it is required to mix evenly, with the spray along the spray, the atomization effect is better, to prevent the local spray concentration is too high, and produce phytotoxicity and affect the output.
3, foliar spray fertilizer to prevent premature aging. When peanuts enter the late growth stage, the absorption capacity of the root system will gradually weaken and the leaf absorption capacity is still strong. If the supply of nutrients is insufficient, the parietal lobe is apt to fall off, and the stems and leaves decay early, which will directly affect the yield. At this time, the foliar fertilizer should be applied in time, and 0.2%-0.3% potassium dihydrogen phosphate aqueous solution or 0.3%-0.4% urea and superphosphate mixed liquid can be applied 1-2 times to prolong the functional period of the leaf and prevent it. Premature decline, increase fruit rate.
4, control of pests and diseases. Doing a good job of pest control is an important guarantee for improving production and quality.
The prevention and control of earthworms and other underground pests must not be paralyzed, so that appropriate scientific control can be achieved. In the middle and late July, 50% phoxim 1500 times solution can be used to irrigate the roots, and the average mu is 1-1.5 kg.
To control peanut stem rot, mancozeb, carbendazim and other fungicides can be used for chemical control.
Prevention of spider mites can be used.
Imidacloprid was used to control aphids.
Prevention and control of cotton bollworm, armyworm and other pests can use silver standard, multi-hit, hundred insects and other high-efficiency and low toxicity pesticide spray control.