Potassium dihydrogen phosphate is an efficient compound fertilizer of phosphorus and potassium, which has the functions of promoting photosynthesis of crops, rapidly replenishing the effective nutrient elements of soil, improving soil fertility, easily absorbed and used by crops, enhancing the ability of crops to resist cold, drought, pests and diseases, and improving crop quality. It has the features of low dosage, high fertilizer efficiency, easy absorption, fast effect, easy to use and significant yield increase.
Potassium dihydrogen phosphate has below strengths:
1) Promote photosynthesis - Potassium plays a role in crop growth to enhance crop photosynthesis and accelerate the production and transformation of nutrients.
2) Promote nitrogen and phosphorus absorption - Potassium dihydrogen phosphate can promote the absorption of nitrogen and phosphorus in crops, quickly replenish phosphorus, improve crop yield and thousand grain weight, and can play a special role in the special physiological period of crops.
3) Improve crop resistance - Potassium phosphate can improve the resistance of crops to such as drought, hot and dry wind, waterlogging, frost, damage and healing and resistance to disease infestation, etc.
4) Regulate crop growth - Potassium dihydrogen phosphate has the role of regulator, can promote the differentiation of crop buds, increase the number of flowers, buds strength and fruit retention and improve fruit fructification, and can also effectively promote the growth and development of the root system.
5) Improve the quality of fruit – Spraying during fruit expansion period can preserve and strengthen fruit, promote fruit expansion, and can improve the quality of fruit, increase coloring, and improve taste, etc.
Potassium dihydrogen phosphate is a widely used fertilizer with outstanding results. Knowing its efficacy and the proper use of it can help you achieve twice the result with half the effort. Here are some tips for using potassium dihydrogen phosphate that most people may not notice.
High purity potassium phosphate is 52% phosphorus and 34% potassium. Phosphorus has a significant effect on the growth of roots, stems and peels of crops, as well as in enhancing disease resistance, cold resistance and flooding resistance. While potassium has significant effectiveness in improving crop yield, increasing fruit quality and improving sugar level.
[Three critical periods need to be seized when using potassium phosphate]
The 1st is the bud differentiation period.
Phosphorus is in high demand during bud differentiation, and it is also very effective in increasing flowering and fruit fructification and reducing flower and fruit drop. Therefore, foliar spraying of 500 times of potassium phosphate during the bud differentiation period will have twice the effect with half the effort.
The 2nd is the fruit expansion period.
As is known to all, the fruit expansion period is the time when potassium is in the greatest demand. Potassium is irreplaceable for seed formation and fruit expansion, and the crop is most sensitive to potassium at this time.
Root application or foliar spraying is most effective during this period. A foliar spray of 500 times of potassium phosphate can be mixed with 1000 times of urea to achieve twice the effect with half the effort.
The 3rd is the coloring period.
Fruit coloring is the process of anthocyanin formation, which is directly related to the sugar level and sunlight, and the formation of sugar substances is greatly influenced by potassium. Therefore, the process of potassium plays a very crucial role in fruit coloring. Hence foliar spraying of 300-500 times of potassium phosphate at the beginning of fruit coloring is twice as effective.
[Precautions and misconceptions about the use of potassium dihydrogen phosphate]
When using potassium dihydrogen phosphate in high concentrations, it is important to avoid high temperatures. Generally it is not recommended to use high concentrations during the season with high temperature. It is proper to use potassium dihydrogen phosphate before 10am or after 4pm.
Potassium dihydrogen phosphate can be mixed with acidic and neutral pesticides to increase the efficacy, but cannot be mixed with alkaline substances. Potassium dihydrogen phosphate is a fully water soluble fertilizer and dissolves in water. Please store it in a cool and dry place and seal the bag when it is not in use.
Additionally, alkaline products should not be mixed with potassium dihydrogen phosphate, such as Bordeaux liquid, copper hydroxide, potassium hydroxide, etc. The PH value of potassium dihydrogen phosphate is around 6.6, which is slightly acidic. Mixing with alkaline fertilizers and pesticides will lead to chemical reaction and abnormal phenomena such as flocculation, precipitation, discoloration, heating and bubbles, which will result in the failure of the function of potassium dihydrogen phosphate.