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What are the main points of applying fertilizer to prevent the premature decline of spring peanuts?
Mar 29, 2018

The cultivation of spring peanuts generally uses mulch film to cover the crop with reasonable application of fertilizer to win a good harvest. The mulching of plastic film has functions of increasing temperature, regulating temperature, preserving waterlogging, lifting concrete, controlling waterlogging, improving soil physical properties and near-surface microclimate. Premature aging is the main obstacle to limiting peanut production. Use symptomatic fertilizers to prevent premature aging.

(1) Apply slow-release fertilizer. Increased application of organic fertilizer, controlled-release fertilizer and other slow-release fertilizers ensure that peanuts have better nutrient supply in the middle and later stages of fertility.

     (2) Spray fertilizer. At the later stage of peanut growth, foliar spray 1%-2% urea or 0.2%-0.4% potassium dihydrogen phosphate solution, or leaf fertilizer rich in NPK and microelements 2-3 times, interval of about 1 week.

     (3) Activation control. According to the flower growth 2-3 times control.

     (4) Strengthen the prevention and treatment of leaf spot disease. When the diseased leaf rate in the field reached 6%-8%, the spraying was started, spraying once every 10-15 days, and spraying 2-3 times. Commonly used agents include 72% agricultural streptomycin sulfate soluble powder, 1.5% polymycin wettable powder, 75% chlorothalonil wettable powder, and 50% carbendazim wettable powder.


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