Rational Application of Potash Fertilizer and High Yield and Efficiency of Crops

Nowadays, with the increase of grain yield and benefits, the demand for nutrient elements such as nitrogen, phosphorus, and potassium is increasing. In recent years, the large-scale application of nitrogen and phosphate fertilizers has basically met the needs of crops, and the contradiction between supply and demand of potassium fertilizers has become increasingly prominent. In many areas, there are symptoms of potassium deficiency, and the effect of applying small potash fertilizers is becoming increasingly significant. The application of potash fertilizer should be classified as increasing crop yields and incomes. The first measure. 1. Potassium Fertilizer Production 1. Potassium Physiological Function: Potassium can regulate the colloidal state of the protoplasm and increase the photosynthesis intensity of crops, promote the formation of carbohydrates, and have a good effect on the accumulation of starch and sugar in crops with roots and tubers. Potassium can increase straw, enhance resistance, reduce disease, and prevent lodging. 2. The effect of potash fertilizer: The application of potash fertilizer increased production obviously. In the past few years, we carried out more than 200 tests on 16 crops of different soil types in the county, all of which showed obvious effect of increasing production, and the average yield increased by 10%-20%. The overall trend of increase in production is vegetable crops> cash crops> food crops. In the vegetable crops, the average yield of potatoes increased by 54%, peanuts in economic crops increased by an average of 15%, corn increased by 16%, and rice increased by 13%. In order to explore the best potassium application rate and the best economic benefit, we also conducted two consecutive years in 1997 and 1998. We conducted a different quantity of potash fertilizer test at various points. All results showed that the basis for fully ensuring nitrogen and phosphate fertilizers The optimum application rate of potassium fertilizer is 10-20 kg/667 m2, and the best economic benefit is 50 yuan per 667 m2. Second, to achieve a high yield and high efficiency of crops must be a reasonable application of potash 1. Potash fertilizer supply will be one of the important measures to achieve efficient agriculture. There are three sources of available potassium in the soil. One is the decomposition of soil minerals, the second is the application of organic fertilizers, and the third is the supplement of chemical potash. At present, in the face of serious declines in soil available potassium in some areas and higher levels of crop production, if only relying on soil decomposition and organic fertilizer supplementation, it is far from meeting the demand of crops, and it is bound to cause the crop to affect soil potassium. The plundering, the amount of potash fertilizer is not enough, the proportion of the three major nutrients is not coordinated, so the application of potash should mention the same place with nitrogen and phosphate fertilizer, so that the application of potash fertilizer in the county as soon as possible. 2. Reasonable application of nitrogen, phosphorus and potassium fertilizers. During the growth of crops, there are regular and proportionate absorption of various nutrient elements. The role of various nutrient elements in the growth and development of crops is equally important, and they cannot be replaced by each other, and each element is mutually complementary. To promote mutual restraint, potassium is one of the three major nutrient elements for plant growth. Potassium application can increase the absorption and utilization of nitrogen fertilizer. Therefore, according to the abundance of nutrients in the soil, appropriate application of nitrogen, phosphorus and potassium fertilizers according to local conditions can make nutrients. Inter-proportional coordination to meet the crop needs of nutrients, the general nitrogen, phosphorus, potassium ratio is 1:0.5:0.4, but in practical applications but also according to different crops, different soil fertility and flexible use, to achieve the purpose of crop harvest. 3. The rational application of potassium fertilizer must do the following. 1 The application of potash fertilizer should take into account the supply of potassium to the soil, and formulate the application plan of potash fertilizer; 2 The application of potash fertilizer should consider the production level and the application amount of nitrogen, phosphorus and potassium. In general, high-yield nitrogen and phosphorus fertilizers should increase the application of potash fertilizer; 3 Potassium fertilizer should be considered for cultivation formulation and multiple cropping index. Potassium fertilizer should be increased for crops with high multiple cropping index. 4 Potassium fertilizer application should take into account the potassium requirement of different crops and the effect of potassium application. Potassium fertilizer should be applied in multiple ways. 5 Potash fertilizer application After the soil, the fluidity is small, so the potash fertilizer is generally used as base fertilizer or early topdressing, while for long-growing crops or sandy soil with poor soil fertility, it can also be applied in divided applications. It should be light and heavy before the plant grows. If the crop shows symptoms of potassium deficiency, the normal growth can be foliar sprayed with potassium sulfate at a concentration of 2%.