The method of distinguishing the advantages and disadvantages of phosphate fertilizer

The following is a description of the advantages and disadvantages of phosphorus fertilizer: Observe the color and morphology, the color of phosphate fertilizer should be grayish white, the morphology is powdery, if the color is white or yellow, it may be because the acid treatment is incomplete, and its phosphorus content is low. Smell, phosphate fertilizer should be slightly sour, if there is no such taste, it means that the amount of sulfuric acid used in the production process is insufficient, the reaction is incomplete, and the content of its active ingredients is low; if the sour taste is too thick, it means that the free acid content is too high, its fertilizer efficiency is low, and after application, it will inhibit the activity of microorganisms in the soil, burn the seedling roots of crops, and cause seeds not to germinate. The moisture content of phosphate fertilizer is generally 8%-14%, and it feels cool after touching, but there is no water trace. If the water is squeezed by hand, it indicates that the water content is too high, and the quality of this phosphate fertilizer is poor. If the hand feels like dry soil, the acid treatment is not thorough and the active ingredient content is low. Sampling test, through the relevant departments for sampling test, determine the quality of phosphate fertilizer. Click for more nitrogen, phosphorus and potassium application techniques Click for more fertilizer application techniques