Monopotassium Phosphate has good water solubility. At 20°C, 100 grams of water can dissolve 22.6 grams of potassium dihydrogen phosphate, and it contains 52% phosphorus (P2O5), 34% potassium (K2O) and more than 80%. It is the first choice for foliar phosphorus and potassium fertilizer due to its utilization efficiency.
The appearance of Monopotassium Phosphate is white crystal, and the aqueous solution is acidic. The pH of 1% aqueous solution is about 4.6. Non-toxic, no volatile odor, non-volatile, stable in nature, easily soluble in water, and easily absorbed and utilized by plants.
The phosphorus and potassium nutrient content of high-quality Monopotassium Phosphate is as high as 86%, which has a significant yield increase effect; the chloride ion content is very low, the salt value is low, and it is safe for crops and is widely used in agricultural production.
Monopotassium Phosphate contains both phosphorus and potassium, two important macroelements.
As a “production worker”, phosphorus has the function of rooting, promoting flower bud differentiation, and providing energy for fruit expansion;
Potassium, as a “porter”, can slow down aging, improve photosynthesis, promote nitrogen absorption, make crops mature earlier, increase fruit sugar and moisture, and enhance disease and drought resistance in the later stages of growth. Thus, the yield, quality and commerciality of fruits can be improved as a whole.
The specific functions of Monopotassium Phosphate:
1. Promote nitrogen and phosphorus absorption
MKP can promote the absorption of nitrogen by crops, quickly supplement phosphorus and potassium, increase the yield of fruit trees and the thousand-grain weight of cereals, and can play a special role in the special physiological period of crops.
2. Promote photosynthesis
Potassium plays a role in enhancing crop photosynthesis during crop growth and accelerating the production, transformation and transportation of nutrients.
3. Improve crop stress resistance
Monopotassium Phosphate can improve the stress resistance of crops, such as drought resistance, dry and hot wind resistance, waterlogging resistance, cold and frost resistance, damage resistance and healing, and resistance to pathogen infection.
4. Protect and strengthen fruit, improve fruit quality
Spraying during the fruit expansion period can protect and strengthen the fruit, promote fruit expansion, improve fruit quality, promote coloration, and improve taste.
5. MKP2-52-34 has a certain regulatory effect on crop growth and development.
It has a similar effect as a regulator. It can promote balanced growth of crops, promote flower bud differentiation, increase the number of flowers, make flower buds strong, strengthen flowers and preserve fruits, improve fruit setting, and can also effectively promote the growth and development of root systems.
6. Irreplaceable advantages of high-quality MKP0.52.34:
- Monopotassium Phosphate is rich in phosphorus and potassium nutrients, and the phosphorus and potassium nutrient content is the highest among all fertilizer products.
- Monopotassium Phosphate has a mild and slightly acidic pH value and can be mixed with most pesticides and fertilizers to increase efficiency.
- High-quality Monopotassium Phosphate has a high absorption and utilization rate when sprayed on foliage, and it is absorbed quickly. It starts to be absorbed 30 minutes after spraying, and can be directly absorbed and utilized by crops, with fast and obvious effects.
How to use Monopotassium Phosphate scientifically?
1. Foliar spraying
Monopotassium Phosphate is the most widely used as a foliar fertilizer and has a high absorption and utilization rate. It can be mixed with general neutral and acidic pesticides and fertilizers and synergize with each other.
The concentration is 0.1% to 0.3%, that is, 15 to 45g of MKP mixed with 15kg of water. The amount of solution sprayed per acre is 30 to 50kg. Spray once every 10 to 15 days and spray 2-3 times is appropriate.
The spraying time is before 10 am or after 5 pm or all day on cloudy days. If it rains within 1 hour after spraying, you should spray again. When spraying cereal crops in the middle and later stages, you can even use a high concentration of 0.5 to 1.0%, that is, 75 to 150g mixed with 15kg of water.
2. Flush
The dosage per mu is 2 to 5kg, and 5 to 10kg can be used in the middle and late stages.
The root concentration can also be diluted 600-800 times, that is, the ratio of potassium dihydrogen phosphate to water is 1:600-800.
3. Root irrigation
The appropriate concentration is 0.1-0.3%, which should be evenly poured into the roots of crops.
4. Drip irrigation
The drip irrigation concentration can be in the range of 0.05% to 0.3%, adjusted appropriately according to the growth conditions of the crops, and applied evenly around the roots of the crops. Many fertilizers themselves are inorganic salts, which can “burn” leaves or roots when the concentration is too high.
5. Seed soaking:
Using MKP for seed soaking and dressing can improve the germination rate of crop seeds, resulting in early germination, early emergence, uniform emergence, strong seedlings, green leaves, many tillers, and developed root systems.
The concentration of seed soaking is generally 0.2%, that is, 100g of MKP mixed with 50kg of water. Soak the seeds for 18 to 24 hours, take them out to dry and sow them. The solution after soaking can also be used as fertilizer for foliar spraying or for irrigating the roots of crops.
6. Seed dressing:
The concentration can be 1%, that is, 100g of MKP mixed with 10kg of water, sprinkled on the seeds, mix well, and dry before use. Or use a sprayer or mist machine to sprinkle it on the seeds, let it dry for a while and then sow. Each kilogram of solution can be used to dress about 10kg of seeds.
7. Dip the roots:
Monopotassium Phosphate is used for dipping roots and is often used for transplanting fruit trees and flower seedlings. Before transplanting crops, mix 0.4 to 0.5 kg of potassium dihydrogen phosphate with 2 to 3 kg of dry fine soil, add an appropriate amount of water to make a slurry, and dip the roots into the pot during transplanting. Or directly dip the roots with 0.5% potassium dihydrogen phosphate solution before transplanting.
Graminous crops: field crops such as wheat, corn, and rice are best sprayed during the several filling periods before turning green, before jointing, before flowering, before booting, and before filling;
Cotton is best used during the key stages of budding, flowering and boll-setting;
Flowering plants can be best sprayed before and after flowering;
The usage concentration is 100 grams of MKP mixed with 30-50 kilograms of water.
8. Base fertilizer:
Because Monopotassium Phosphate has high phosphorus and potassium content, it can be used as a phosphorus-potassium base fertilizer. Use 5kg of potassium dihydrogen phosphate per acre and mix it with 10kg of fine soil or farmyard manure before use. Depending on the age of the fruit trees, 50-200g potassium dihydrogen phosphate can be directly applied in the trench.
In short, Monopotassium Phosphate MKP0-52-34 is a fast-acting high-phosphorus and high-potassium binary compound fertilizer. It is widely used in various types of economic crops, grains, fruits, vegetables, etc. MKP can be used in almost all types of crops and has significant effects on increasing production and income. It has many excellent effects such as improving crop quality, resisting lodging, resisting pests and diseases, and preventing premature aging.
