How to apply potash fertilizer to cabbage to increase production?

How to apply potash fertilizer to cabbage to increase production? The effect of applying potassium fertilizer on increasing yield of Chinese cabbage is obvious. The results showed that under the same condition of nitrogen and phosphorus fertilizer, Chinese cabbage increased the application of potassium fertilizer (50% potassium sulfate) by 18 kg / mu, the yield increased by 33.2%, and the average yield of Chinese cabbage increased by 159 kg per kilogram of potassium sulfate. Enhance disease resistance. The application of potassium fertilizer can significantly improve the disease resistance of Chinese cabbage and reduce the incidence of diseases. according to statistics, the incidence of disease in Chinese cabbage with potassium fertilizer is only 1.9%, while the incidence in the control area is 11.4%, and the incidence is reduced by 9.5%. Increase the commodity rate. The heart of Chinese cabbage with potash fertilizer is tight and has few virtual leaves, but the heart of Chinese cabbage in the control area is not tight, and the difference is obvious. When stored in winter, there are generally three tightly packed green leaves outside as standard commercial dishes. The commodity rate of cabbage with potash fertilizer is 88.5%-91.2%, while that of the control area is 80%-83.1%. The application of potash fertilizer increases the commodity rate of cabbage, thus improving economic benefits. The basic application of potassium application method: Chinese cabbage produces more than 10,000 kilograms, requires 300 kilograms of refined organic fertilizer per mu, or 300 kilograms of dried chicken manure and 3 square manure of grass circle, and then applies compound fertilizer (the content of nitrogen, phosphorus and potassium is more than 35%). For example, the compound fertilizer rich in potassium sulfate is 30kg / mu, and the above two fertilizers can be applied separately. Nitrogen fertilizer (46% urea 15 kg), phosphate fertilizer (14% calcium superphosphate 30 kg) and potash fertilizer (50% potassium sulfate 12 kg) can be mixed with nitrogen fertilizer (46% urea 15 kg), phosphate fertilizer (14% calcium superphosphate 30 kg) and potassium fertilizer (50% potassium sulfate 12 kg). Sow cabbage seeds on the ridge. Topdressing: the amount of fertilizer required during the heading period of Chinese cabbage accounted for more than 60% of the total fertilizer requirement during the whole growth period. In this period, in addition to applying nitrogen fertilizer twice (urea 20kg 25kg), potassium sulfate was also applied 5kg 7kg, ditched between ridges and covered with soil and watered. Foliar spraying: 0.2% potassium dihydrogen phosphate can be sprayed from rosette to heading stage, once every 7-10 days, for a total of 3 times, in the morning, evening or cloudy day. Click to get more nitrogen, phosphorus and potassium application techniques click to get more fertilizer application techniques click to get more cabbage planting techniques