Phosphorus powder as we know it

Phosphorus powder is phosphate rock powder. Phosphate rock powder is a representative variety of insoluble phosphate fertilizer, which is made by grinding phosphate rock. The direct application of phosphate rock powder should be a variety that contains a high amount of weakly acidic phosphate. Not all phosphate rock can be ground and directly used as a phosphate fertilizer. The main component of phosphate rock powder is tricalcium phosphate or fluorinated calcium phosphate, and the phosphorus content is more than 14%. The level of phosphorus content depends on the taste of the phosphate rock. 

Phosphorus powder-phosphate rock powder
Phosphate rock powder is suitable for basal fertilizer application on acid soil, not for top dressing. The application amount of phosphate rock powder as base fertilizer should be determined by its effective phosphorus content, generally about 100 kg per mu. It should be combined with evenly spreading when plowing the land and then turning into the root depth. Because the phosphate rock powder has a long validity period, it can be applied again after 1-2 years. Phosphate rock powder should be arranged in the acidic and phosphorus-deficient soil first. The transformation of phosphate rock powder in soil: After phosphate rock powder is applied to the soil, it gradually decomposes under the action of chemical, biochemical and biological factors, changing the original state and transforming into new phosphorus compounds. The transformation of phosphate rock powder in soil: After phosphate rock powder is applied to the soil, it gradually decomposes under the action of chemical, biochemical and biological factors, changing the original state and transforming into new phosphorus compounds. 
Harm to the human body
Both non-phosphorus powder and phosphorus powder are harmless to the human body. Phosphate in phosphorus powder is widely used in various industries, and phosphorus is also an essential nutrient for the growth and development of various organisms (including humans). Normal people need to take in a certain amount of phosphorus from food every day, and the same amount of phosphorus is excreted from the body through metabolism. The replacement of phosphorous powder with non-phosphorus powder is mainly for environmental protection. Because a large amount of nitrogen, phosphorus and other substances are discharged into the water, it causes excessive growth of algae, that is, eutrophication of the water body.