Potassium is one of the important elements needed for fruit trees, especially for improving apple quality and improving fruit quality. Therefore, potash is also known as fruit fertilizer.
Applying potassium fertilizer at an appropriate amount in a timely manner can significantly increase the fruit, increase the sugar content, and increase the degree of coloration. It also makes the fruit color bright, the peel is smooth, and the inner quality of the flavor is improved. The resistance to pests and diseases is also improved, and the storage and transport resistance is enhanced.
What is the right time? The absorption of potassium by apple trees is less in the early stage of growth, and then gradually increases, and the peak critical period of absorption is in the middle and late growth stages. Generally, from early July to early August, when you apply the right amount of potash to the fruit trees during this time, you will get twice the result with half the effort. If the same amount of potash is applied before early Spring or flowering, there will be no obvious effect on the yield and coloration.
What is the right amount? The application rate is preferably one kilogram of pure potassium per 100 kilograms of production. If the application is excessive, the physiological function of the fruit tree will be destroyed, which will affect the absorption and utilization of other elements. Excessive potassium application in apple trees shows magnesium deficiency, and the calcium content in the tree is also relatively reduced.
In addition, when applying potassium fertilizer, potassium sulfate should be selected with high absorption efficiency and obvious effect, followed by potassium chloride, or organic fertilizer with high potassium content such as grass ash or decomposed chicken manure can be applied under the tree. Then shallowly watering. If the leaf surface spray is supplemented with 0.3% to 0.5% potassium dihydrogen phosphate solution or amino acid potassium 300-500 times solution, good results can also be obtained.
Applying potassium fertilizer at an appropriate amount in a timely manner can significantly increase the fruit, increase the sugar content, and increase the degree of coloration. It also makes the fruit color bright, the peel is smooth, and the inner quality of the flavor is improved. The resistance to pests and diseases is also improved, and the storage and transport resistance is enhanced.
What is the right time? The absorption of potassium by apple trees is less in the early stage of growth, and then gradually increases, and the peak critical period of absorption is in the middle and late growth stages. Generally, from early July to early August, when you apply the right amount of potash to the fruit trees during this time, you will get twice the result with half the effort. If the same amount of potash is applied before early Spring or flowering, there will be no obvious effect on the yield and coloration.
What is the right amount? The application rate is preferably one kilogram of pure potassium per 100 kilograms of production. If the application is excessive, the physiological function of the fruit tree will be destroyed, which will affect the absorption and utilization of other elements. Excessive potassium application in apple trees shows magnesium deficiency, and the calcium content in the tree is also relatively reduced.
In addition, when applying potassium fertilizer, potassium sulfate should be selected with high absorption efficiency and obvious effect, followed by potassium chloride, or organic fertilizer with high potassium content such as grass ash or decomposed chicken manure can be applied under the tree. Then shallowly watering. If the leaf surface spray is supplemented with 0.3% to 0.5% potassium dihydrogen phosphate solution or amino acid potassium 300-500 times solution, good results can also be obtained.
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