Peanuts are hi potassium crops. In order to understand the effect of applying potassium fertilizer on peanut production, the author conducted a systematic and experimental study on the application of potash fertilizer in peanuts. The results show that the application of potash fertilizer under the appropriate nitrogen and phosphorus fertilizer dosage can significantly improve The potassium nutrition of peanuts and the coordination of nitrogen, phosphorus, and potassium fertilizers have a significant increase in yield and quality. The technology is briefly described as follows:

First, potassium method

1. Jishi: When the summer peanuts are grown at a certain point, the compound fertilizer containing potash fertilizer at the end of the seeding machine can be used. For example, Yangyangtian potassium sulfate compound fertilizer (containing 15% potassium oxide) and Sakyfu (potassium oxide 15%), etc. Use 25 kg.

2, topdressing: can be applied at the seedling stage in late June: Ditching in the ridge between 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 12-15 kilograms of mu, after the application of timely soil 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 foliage, and about 30 kg of liquid fertilizer can be used to timely replenish potash fertilizer, also with control of armyworm and cotton bollworm. The sprays were sprayed together and sprayed 2-3 times.

Second, the effect of potassium application

1. The effect of increasing production is obvious. Potassium oxide 5-10 kg per acre, can increase production of 15-40 kg, an increase of 8%-15%, an average of 3-4 kg per kilogram of potassium oxide can increase production of mangosteen, of which 7.5 kg of Mushi potassium oxide, the most effective production 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 the plant's resistance to disease. Stalk rot and black spot disease are two major diseases of peanut growth. There is no specific drug control, and application of potassium fertilizer can reduce the incidence of stalk rot disease by 14-21%, which can reduce the incidence of black spot disease11- 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%.

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