Potassium dihydrogen phosphate is a physiologically neutral fertilizer with good water solubility and is the first choice for foliar potassium fertilizer. The real potassium dihydrogen phosphate is white and odorless crystals. Those that can smell are defective and impure. There are also many unscrupulous merchants on the market who use magnesium sulfate to pretend to be potassium dihydrogen phosphate. In fact, the inspection method is very simple: after burning , exposure to the sun also has no taste, if there is a peculiar smell, it means that hormones have been added or fake products.
The use points of potassium dihydrogen phosphate in the crop growth cycle:
1. Blossom:
The demand for P is relatively large before and after the crops bloom, and the foliar spraying of potassium dihydrogen phosphate can make the leaves thicker and the photosynthesis efficiency is higher, thereby effectively increasing the fruiting rate.
2. Results:
Everyone knows that the fruit expansion period is the time when the demand for potassium is high. Spraying potassium dihydrogen phosphate 1-2 times can promote the growth of young fruits and improve the growth rate of young fruits. K is irreplaceable for seed formation and fruit enlargement, and crops are also sensitive to K at this time.
3. Color change:
Fruit coloring is the process of anthocyanin formation, and the formation of anthocyanin has a direct relationship with sugar content and sunlight, and the formation of sugar substances is greatly affected by K. Foliar sprays promote fruit sweetening and good coloration.
4. Picking:
Potassium dihydrogen phosphate sprayed after picking can protect leaves, reserve energy for next year's flowering and fruiting, and promote flower bud differentiation.
The use of potassium dihydrogen phosphate can be said to be spread throughout the growth cycle of crops. Although it is a foliar fertilizer, the participation of potassium dihydrogen phosphate cannot be lost before flowering or after picking. Especially this year, which is affected by the market and fluctuates greatly, the price of potassium dihydrogen phosphate on the market is also uneven. Farmers must keep their eyes open when choosing and not be deceived by a single price. There will be no increase in production, and there is still the risk of making ends meet!
