Potassium is one of the important elements needed for fruit trees. In particular, it has an irreplaceable role in improving apple quality and improving fruit quality. Therefore, potassium is also called fruit fertilizer.
The timely and appropriate use of potash fertilizer can significantly increase fruit size, increase sugar content, and increase coloration. Can make the fruit color bright, smooth skin, flavor and other intrinsic qualities improved. Resistance to pests and diseases increased accordingly, and storage and transportation resistance increased.
What is timely? Absorption of potassium by apple trees is less in the initial stage of growth and gradually increases afterwards. The critical period of peak absorption is in the late growth stage. It is usually July-August, when appropriate potassium fertilizer is applied to fruit trees during this period, it will have a multiplier effect. If an equal amount of potash is applied before early spring or flowering, it will not have a significant effect on yield and coloration.
What is the right amount? The application amount may be one kilogram per kilogram of pure potassium fertilizer. Excessive application, on the contrary, will destroy the physiological function of fruit trees and affect the absorption and utilization of other elements. Excessive use of potassium in apple trees shows magnesium deficiency, and the calcium content in the tree also decreases.
In addition, in the application of potash fertilizer, potassium sulfate should be selected for its high absorption and utilization efficiency, and obvious effect is potassium sulfate followed by potassium chloride. Organic potassium fertilizer with high potassium content, such as grass ash or decomposed chicken manure, can also be applied under the tree. , and then shallow watering. Such as using 0.3% -0.5% potassium dihydrogen phosphate solution or amino acid potassium 300-500 times liquid foliar spray supplement, can also receive better results.
The timely and appropriate use of potash fertilizer can significantly increase fruit size, increase sugar content, and increase coloration. Can make the fruit color bright, smooth skin, flavor and other intrinsic qualities improved. Resistance to pests and diseases increased accordingly, and storage and transportation resistance increased.
What is timely? Absorption of potassium by apple trees is less in the initial stage of growth and gradually increases afterwards. The critical period of peak absorption is in the late growth stage. It is usually July-August, when appropriate potassium fertilizer is applied to fruit trees during this period, it will have a multiplier effect. If an equal amount of potash is applied before early spring or flowering, it will not have a significant effect on yield and coloration.
What is the right amount? The application amount may be one kilogram per kilogram of pure potassium fertilizer. Excessive application, on the contrary, will destroy the physiological function of fruit trees and affect the absorption and utilization of other elements. Excessive use of potassium in apple trees shows magnesium deficiency, and the calcium content in the tree also decreases.
In addition, in the application of potash fertilizer, potassium sulfate should be selected for its high absorption and utilization efficiency, and obvious effect is potassium sulfate followed by potassium chloride. Organic potassium fertilizer with high potassium content, such as grass ash or decomposed chicken manure, can also be applied under the tree. , and then shallow watering. Such as using 0.3% -0.5% potassium dihydrogen phosphate solution or amino acid potassium 300-500 times liquid foliar spray supplement, can also receive better results.
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