The types of nitrogen, phosphorus and potassium fertilizers are revealed! Do you know?
The three major elements of nitrogen, phosphorus and potassium are widely used in farmland and have an important impact on the growth and development of crops. Below, we will detail several types commonly used in phosphorus, phosphorus, and potassium.
1. Different types of nitrogen fertilizers.
1.Ammonia fertilizers: mainly ammonium sulfate, ammonium chloride, ammonium bicarbonate, etc. N in this kind of chemical fertilizer is in an ammonium state, which is easy to absorb and not easy to lose. Ammonia nitrogen fertilizers are suitable for many types of land and crops, but care should be taken during application not to mix with alkaline compounds, otherwise it will lead to the volatilization of ammonia.
2.Nitrate nitrogen: ammonium nitrate, calcium nitrate, etc. This type of chemical fertilizer exists in the form of nitrate nitrogen, has good water solubility, and is easy to be used by crops. Nitrate nitrogen fertilizers are suitable for arid and well-drained land, as well as nitrate-loving crops such as tobacco and sugar beets.
3.Ammonia nitrogen fertilizers such as urea. As a high-nitrogen fertilizer, urea exists in the form of an amine group, which must be converted by ammonium or nitrate in the soil before it can be used by plants. Urea has good adaptability to different lands and different crops, and it has a long service life and is easy to use.
2. Different types of phosphate fertilizers.
1.Superphosphate: It is a soluble phosphate that contains a lot of phosphorus. It is suitable for crops such as wheat and corn with acidic and low p. In order to better play the role of fertilizer, it should be applied in conjunction with chemical fertilizer in the fertilization process.
2.Calcium, magnesium and phosphorus: It is a micro-acid fertilizer that contains a moderate amount of phosphorus. It can be used for medium and alkaline soil improvement to improve the stress resistance of crops. In order to reduce phosphorus retention and loss in the soil, deep mulching is required when applied to the soil.
3.Phosphorite: Phosphorite is a poorly soluble phosphate mineral with a high content. This product is suitable for acidic soil and fruit trees, vegetables and other P-like crops. In order to increase the solubility and effective utilization of phosphorus in the soil, it should be applied in combination with organic fertilizer or lime.
3. Varieties of potassium carbonate.
1.Potassium: It is a water-soluble potassium salt that contains a large amount of potassium. The present invention has the characteristics of high fertilizer utilization rate, convenient use, etc., and is suitable for all kinds of soil and crops. However, the chloride contained in potassium chloride can cause harm to some crops such as tobacco and potatoes.
3.Potassium and magnesium fertilizer: Potassium and magnesium fertilizer is a compound fertilizer of potassium and magnesium, which is suitable for land and crops deficient in potassium or magnesium. In the process of potassium application, it is necessary to pay attention to the combination of organic fertilizer and phosphate fertilizer in order to meet the needs of crops for various nutrients.
Therefore, phosphate fertilizers, phosphate fertilizers and potassium are indispensable in the agricultural production of our country. In the selection of chemical fertilizers, it is necessary to combine soil conditions, crop needs and fertilizer characteristics and other conditions, and scientifically select chemical fertilizers to ensure the high yield and high quality of crops and promote the sustainable development of agriculture.