What are the types of fertilizers and what are their respective functions?
As everyone knows, fertilizer is an indispensable material for farmers in the process of agricultural production, so do you know how many types of fertilizer there are? And what are their respective functions? Below, the editor will briefly study and understand them together with everyone.
Fertilizer can be divided into organic fertilizer and inorganic fertilizer.
Common organic fertilizers: fermented products such as manure and urine, remains of animals and plants, soybean cake, oil residue, horse hooves, rice washing water, leftover yogurt, etc.
Common inorganic fertilizers: urea, potassium dihydrogen phosphate, ferrous sulfate, ammonium bicarbonate, etc.
Most compound fertilizers belong to inorganic fertilizers, but a small number of products also belong to slow-release organic fertilizers. When using them, be sure to read the product name, raw materials and usage method clearly.
Organic fertilizer and inorganic fertilizer have different usage methods. Only by applying them in corresponding ways according to different fertilizers can better results be achieved. Otherwise, not only will good results not be achieved, but fertilizer damage or fertilizer waste may even be caused.
(1) Nitrogen fertilizer: namely chemical fertilizer with nitrogen nutrient elements as the main component, including ammonium bicarbonate, urea, ammonium nitrate, ammonia water, ammonium chloride, ammonium sulfate.
(2) Phosphate fertilizer: namely chemical fertilizer with phosphorus nutrient elements as the main component, including ordinary superphosphate, calcium magnesium phosphate fertilizer, etc.
(3) Potassium fertilizer: namely chemical fertilizer with potassium nutrient elements as the main component. At present, it is not applied much. The main varieties include potassium chloride, potassium sulfate, potassium nitrate, etc.
(4) Compound and mixed fertilizers: namely fertilizers containing two of the three major fertilizer elements (nitrogen, phosphorus, potassium), namely binary compound and mixed fertilizers, and those containing all three elements nitrogen, phosphorus and potassium, namely ternary compound and mixed fertilizers. Among them, mixed fertilizer is promoted very quickly across the country.
(5) Trace element fertilizers and certain secondary element fertilizers: the former include fertilizers containing trace elements such as boron, zinc, iron, molybdenum, manganese and copper, and the latter include fertilizers such as calcium, magnesium and sulfur.
(6) Fertilizers beneficial to certain crops: such as steel slag silicon fertilizer applied to rice, cobalt fertilizer applied to legume crops, and agricultural rare earth applied to sugarcane and fruit. There are 16 nutrient elements essential for crops. Except for carbon, hydrogen and oxygen, which are absorbed from the air, the rest all need to be supplied through fertilization to varying degrees to meet the needs of normal crop growth.
According to the amount of nutrients crops need, they are divided into macroelement fertilizers, including nitrogen fertilizer, phosphate fertilizer and potassium fertilizer; secondary element fertilizers, including calcium, magnesium and sulfur fertilizers; trace element fertilizers, including zinc, boron, manganese, molybdenum, iron and copper fertilizers; in addition, there are also some beneficial element fertilizers such as silicon-containing fertilizers and rare earth fertilizers.
In summary, this is a brief introduction to several relatively common types for everyone. See what other knowledge you still need to continue learning, and you can leave a comment to explain.
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