Potassium nitrate is an inorganic compound, commonly known as fire nitrate or soil nitrate. It is the nitrate of potassium. It is colorless and transparent orthorhombic crystal or rhombic crystal or white powder. It is odorless, non-toxic, salty and cool. Potassium nitrate is a chlorine free nitrogen potassium compound fertilizer with high solubility. Its effective components nitrogen and potassium can be quickly absorbed by crops without chemical residues. As fertilizer, it should be applied to vegetables, fruits and flowers, and some chlorine sensitive crops (such as potatoes, strawberries, beans, cabbage, lettuce, peanuts, carrots, onions, blueberries, tobacco, apricots, grapefruit and avocado). Potassium nitrate is an important chlorine free nitrogen potassium compound fertilizer, which is suitable for Topdressing of crops, especially in the middle and late stage. Potassium nitrate used in agriculture is a high-quality fertilizer, easy to be absorbed by plants, suitable for any crop and regardless of season. Potassium nitrate contains two nutrient elements, nitrogen and potassium, and its water solubility is good. It can be sprayed, combined with drip irrigation and infiltration irrigation, or used as base fertilizer. After potassium nitrate is applied to farmland, it can be absorbed and utilized by crops. Compared with the application of potassium fertilizer such as potassium chloride and potassium sulfate, it will not form the residue of harmful substances such as chloride ion and sulfate ion in the soil. It is appropriate to use this fertilizer in greenhouse crop production, which is conducive to delaying the process of soil salinization in the greenhouse.
What are the effects of agricultural potassium nitrate？
1. Provide efficient nutrition for plant
Potassium nitrate is an important source of potassium. Potassium is the main cation in plants, which can neutralize many negatively charged mineral anions and organic acids. Therefore, potassium in potassium nitrate is very important for plant growth and development and normal tissue growth. Potassium ion (K +) plays an important role in many cell metabolism. It acts as an osmotic regulator and participates in several processes of regulating plant water use.
2. Make plants stronger
Potassium nitrate contains almost no chloride, and the increase of chloride content may cause toxic reaction, reduce yield and even plant death. Potassium nitrate contains almost no harmful chloride, and the nitrate in potassium nitrate can counteract the harmful effect of chloride. Improve the frost resistance of plants. Potassium in potassium nitrate helps to thicken the cell wall and increase the concentration of intracellular electrolyte, so as to increase the frost resistance of plants.
3. Improve soil properties
Nitrate in potassium nitrate increases the pH value of root surface. After absorbing potassium nitrate, roots will release hydroxyl ions (OH -) and form a slightly alkaline environment in the root area, so as to improve the properties of acidic soil.
4. Reduce salinity
Nitrate in potassium nitrate can reduce the absorption of chlorine by plants in soil solution or irrigation water. Similarly, the potassium ion in potassium nitrate can reduce the toxic effect of sodium. Therefore, potassium nitrate is highly recommended for salt sensitive crops and when the quality of irrigation water is poor.
5. Easy to handle and apply
Potassium nitrate has high solubility in water. Potassium nitrate can be completely and rapidly dissolved in water. It is an ideal choice for irrigation, fertilization and foliar spraying. The solubility of potassium nitrate in water increases with the increase of water temperature. Potassium nitrate has no moisture absorption.
Post time: Nov-30-2021