Is potassium nitrate fertilizer good?

Is potassium nitrate fertilizer good? How to use potassium nitrate fertilizer with good effect? What should I pay attention to when buying potassium nitrate fertilizer? Please introduce that potassium nitrate is a binary fertilizer of nitrogen and potassium, which has two forms of white powder and granule, which is easily soluble in water and is one of the varieties of high concentration compound fertilizer mainly containing potassium. Potassium nitrate usually exists as particles and has a white appearance. Physical shape is good, soluble in water, 20 ℃ per 100g of water can dissolve 31.2g, dissolved in water, and then drying or drying, fertilizer is still there. It is proved that the effect of potassium nitrate fertilizer is quite good. Potassium nitrate is a physiological neutral fertilizer, which contains a large number of nitrogen and potassium elements, which can promote each other in absorption, and long-term application will not change the pH value of the soil and has no adverse effect on the soil environment. Potassium nitrate can be used as base fertilizer, seedling fertilizer and topdressing fertilizer. According to the practice in recent years, it is the most ideal to be used as topdressing fertilizer. The application method of topdressing: the crop was applied directly below the largest leaf tip about 25 days after transplanting, and the fertilization depth was 15 cm. Application method of foliar topdressing: in order to promote foliar absorption, 5% urea should be added to potassium nitrate before use to prepare a solution with a concentration of 0.5%. Potassium nitrate is an all-water-soluble fertilizer with high efficiency and high absorption. the use of potassium nitrate can be adjusted according to the expectation of yield and the needs of crops. Potassium nitrate is a binary compound fertilizer without phosphorus. Any potassium nitrate containing phosphorus is impure or fake, with a content of 13.5 nitrate nitrogen and no phosphorus. Attention should be paid to the purchase of potassium nitrate. Points for attention in the use of potassium nitrate: 1, for paddy soil application. It is not suitable for soil application in rainy season. 2. It can not completely replace organic fertilizer and NPK, it should be used together in the whole growing period of crops, and can be applied alone or in combination according to the needs of specific periods of crop growth. 3. Apply each crop of fruits and vegetables as soon as possible after picking. The tree potential can be restored as soon as possible, so that the next crop of fruit can be harvested and listed as soon as possible. 4. If it is an one-time harvest of fruit trees (for example, citrus, apple, grape), it must be applied 30 and 15 days before harvest. To ensure that the fruit color is bright, the skin color is smooth, the storage period is prolonged and the selling price is high. In the fruit tree expansion period, it can also be combined with irrigation for 2 times. 5. Can not be regarded as potassium sulfate fertilizer, mistakenly applied as pure potassium, so as not to cause excessive application of nitrogen fertilizer. 6. When potassium nitrate is used as base fertilizer, it can not be mixed with calcium superphosphate and fresh organic fertilizer to avoid nitrogen loss. 7. Potassium nitrate is a strong oxidant, which should not be stacked near the heat source and flammable and explosive materials during storage to prevent fire. Potassium nitrate daily precautions: 1, should be placed in a ventilated, cool place, and avoid high temperature and open fire. 2. The power supply line for storing potassium nitrate warehouse should be safe and must not be short-circuited. It's better without a power line! The warehouse where potassium nitrate is stored should be cool, ventilated, dry and moistureproof. The temperature in the warehouse should be lower than 40 ℃. 4. Do not pile up organic fertilizer near potassium nitrate. 5. It is necessary to prevent rain and hot sun exposure in the process of transportation. Do not mix with charcoal, sulfur and other combustibles to prevent explosion. 6. When loading and unloading, you should tell the stevedores: handle with care to avoid impact. When there is a broken or broken bag, it should be sewn up immediately and fasten the mouth tightly. When scattered on the ground or other objects, it should be cleaned up in time. Click to get more compound fertilizer application techniques