How to apply potash fertilizer to rice?

How to apply potash fertilizer to rice? Please introduce that the application of potash fertilizer to rice can achieve a significant yield increase. Sufficient potassium can not only enhance photosynthesis, promote sugar synthesis and accumulation, improve plant resistance, but also enhance rice root respiration, promote nitrogen absorption and protein synthesis, make rice grains large and full, high and stable yield. However, the application of potash fertilizer must pay attention to the following four points: 1, the amount is reasonable. Adhere to the principle of "four more, four less". There is more application in the fields with less potassium content, and vice versa; more application in early rice, less application in late rice, more application in tall stalk species, less application in dwarf varieties, more application in hybrid rice, less application in conventional varieties. The experiment shows that the economic benefit is the highest when 7.5-10 kg potassium chloride is applied per mu. 2. Fertilizing in proper time. Rice needs the most potassium at the full tillering stage and young panicle differentiation stage, potassium fertilizer should be applied once, preferably at the tillering stage, and twice should be applied at the tillering stage and young panicle differentiation stage. 3. Cooperate with fertilization. The efficiency of potassium application can be brought into full play only with the combination of phosphorus and nitrogen, and the suitable ratio of nitrogen, phosphorus and potassium is 1: 0.5: 1.2. 4. Appropriate application of lime. Potassium chloride and potassium sulfate are physiologically acidic fertilizers. Long-term use will cause soil acidification. Lime should be properly applied to neutralize soil acidity to facilitate the growth of rice. Click to get more rice planting techniques click to get more nitrogen, phosphorus and potassium application techniques click to get more chemical fertilizer application techniques