Peanut high yield words potassium

Peanuts are hi potassium crops. In the practice of peanut cultivation, appropriate amounts of nitrogen and phosphate fertilizers and good potassium fertilizers can not only effectively increase plant growth and stress resistance, but also greatly reduce the occurrence of two major diseases, stem rot and black spot. , And the yield increase effect is obvious, can make the number of fruit per plant, the number of full fruit increased significantly, increase the fruit rate and the rate of the kernel, generally 5 to 10 kg of potassium oxide per mu, increase the yield of 8% to 15%, also Can significantly improve the quality, so that the kernel amino acid and fat content increased. The method of applying potassium to peanuts is simple, and the three methods of basic application, top dressing and foliar spray are mainly used in production.

When the basal fertilizer is applied to peanuts, the potassium sulfate compound fertilizer (containing 15% of potassium oxide) is applied at the end of sowing, and 25-30 kg per mu.

Miaofei topdressing Miaofei generally can be applied before flowering, digging in the interline between the application of potassium sulfate compound fertilizer (including potassium oxide 15%) 22 ~ 30 kg. Potassium fertilizers such as potassium sulfate (potassium 60%) or potassium chloride (potassium 60%) can also be used alone, with dosages of 12 to 15 kg per mu. After the fertilization, it should be timely watering the soil, avoiding the soil surface sprinkled to prevent burning of young leaves and reduce fertilizer use efficiency.

In the middle and late stages of growing peanuts outside the root, potassium can be applied to the peanut by foliar spraying method. Generally, 0.3% potassium dihydrogen phosphate or 1% potassium sulfate solution is sprayed in an amount of 30 kilograms per mu. After sunny dew, the spray is concentrated. Foliar, spray once every 7 days, spray a total of 2 or 3 times. Foliar potassium can be combined to prevent and control armyworm and cotton bollworm. Control of armyworm and bollworm can be controlled by spraying 10% chrysanthemum cream 15000 times and 2.5% kungfu cream 5000 times.

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