Peanut is a potassium-promoting crop. In order to understand the effect of applying potassium fertilizer on peanut production, Zhengding County has conducted systematic and experimental studies on the application of potash from peanuts since 2001. The results show that: Potash fertilizer can significantly improve the potassium nutrition of peanuts and coordinate the relationship between nitrogen, phosphorus and potash fertilizers. The effect of increasing production is obvious and quality is improved significantly. At present, this achievement has passed the appraisal of provincial and municipal experts, and the increasing potassium application technology has been increasingly adopted by the majority of farmers. First, the effect of potassium 1. The effect of increasing production is obvious. Application of potassium oxide per acre 5 to 10 kg, can increase production of 15 to 40 kg, an increase of 8% to 15%, an average of kilograms per kilogram of potassium can increase fruit production 3 to 4 kg, of which 7.5 kg per mu potassium oxide, the most effective Significantly, the input-output ratio is 1:5.9. 2. Improve the production factors of peanuts. The experimental study showed that the application of potassium fertilizer to peanuts at 7 kg/mu can reduce the empty tree phenomenon. The potassium application rate increased by 3.5 compared to the control, the number of full fruit increased by 4.3, the fruit filling rate increased by 8.7%, and the output rate increased by 3.2. %. Both increased peanut plant productivity. 3. Improve plant resistance to disease. Stalk rot and melasma are two major diseases of peanut growth. There is no specific drug control, and application of potassium fertilizer can reduce the incidence of stem rot disease by 14% to 21%, which can reduce the incidence of melasma. 11 % to 18%. 4. Significantly improve its quality. The test showed that the amount of potassium oxide applied in mu was 10 kg, which was 0.30% higher than that of the control kernel. The total amount of total potassium was increased by 1.6%, and the bitter taste of chloro-acid was reduced by 0.21%. Second, potassium method 1. Jishi: When the summer peanuts are planted, the compound fertilizer containing potash fertilizer can be applied at the end of the seeding machine such as Yangyangtian potassium sulfate compound fertilizer (containing 15% of potassium oxide) and can be rich (potassium oxide 15%), etc. Use 25 kg. 2. Topdressing: Can be applied at the seedling stage in late June: Ditch the ridges and apply the compound fertilizer. Can also be a single application of potassium fertilizer such as potassium sulfate (potassium 60%) or potassium chloride (potassium 60%), the amount of mu 12 to 15 kg, after the application of timely soiling watering, avoid diffuse application, so as not to burn seedlings and reduce Fertilizer effect. 3. Foliar spraying: During the middle and late stages of peanut growth, it can be sprayed with 0.3% potassium dihydrogen phosphate or 1% potassium sulfate solution through the leaves, and about 30 kg of liquid fertilizer can be used to timely replenish potash fertilizer, also with the control of armyworm and cotton bollworm. The sprays were sprayed together and sprayed 2 or 3 times. (Cui Ruixiu) Hainanmycin Premix,Hainanmycin Feed Addtitives,Hainanmycin Anticoccidial,Hainanmycin Chicken Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com