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Clever use of calcium superphosphate effect
Superphosphate is commonly known as supercalcium, which is mostly grayish-white powder, making it a chemical fertilizer commonly used in agricultural production. After the powdery superphosphate is applied, the water-soluble phosphoric acid contained in it will dissolve in the soil moisture quickly and react with the inorganic elements in the soil chemically to reduce the fertilizer efficiency. The general utilization rate is only 10%-15%. In order to increase its size, two new fertilization methods are introduced: Ammoniated superphosphate. After the superphosphate is ammoniated, it can be used to "recognize nitrogen and promote phosphorus", and it can also produce ammonium dihydrogen phosphate to increase the utilization rate of nitrogen fertilizer. Ammoniated superphosphate is a compound fertilizer with less nitrogen and phosphorus, and it should be applied to soils deficient in phosphorus, and pay attention to nitrogen fertilizer. Ammoniated superphosphate production methods are as follows: 1. Wet: Ammonia bicarbonate is mixed with water (the ratio of fertilizer and water is 1:1), diluted into ammonium bicarbonate solution, and sprinkled into superphosphate repeatedly to achieve micro Acidic, heaping boring for a few days, so that calcium superphosphate can be fully ammoniated. 2. Drying: Solid ammonium bicarbonate can also be used to prevent the finished product from becoming too wet. Calcium superphosphate and ammonium bicarbonate are separately crushed, sieved, and then fully mixed. When producing, the key is to grasp the ratio of ammonium bicarbonate and phosphate fertilizer. Usually 1:4-6, that is 1 kg of ammonium bicarbonate mix 4 kg -6 kg of superphosphate, making it slightly acidic. When the fertilizer is dry, the two do not interact with each other. If there is a buzzing sound when mixing, this is normal. Second, the particle superphosphate. The application of calcium superphosphate into granules can greatly reduce the contact area with soil and reduce the chance of phosphorus being fixed by soil. Secondly, the application of particulate superphosphate can form high-nutrition areas in the soil for the absorption and utilization of the crops. It will not affect the activity of soil microbes due to high phosphorus concentrations.
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