When to apply potassium fertilizer to apple trees
Today, the editor will introduce the maintenance of fruit trees, specifically when to apply potassium fertilizer to apple trees. Next, the editor of the site will provide an introduction for netizens.
For determining when to apply potassium fertilizer to apple trees, it mainly depends on the absorption effect. Apple trees absorb less potassium in the early growth stage and gradually increase, with the peak critical period occurring in the mid-late growth stage. It is generally from early July to early August. Applying an appropriate amount of potassium fertilizer to the fruit trees during this period will yield twice the result with half the effort. If the same amount of potassium fertilizer is applied in early spring or before flowering, there will be no significant effect on yield or coloration.
The application rate can be 1 kilogram of pure potassium per 100 kilograms of yield. Excessive application, on the other hand, can damage the physiological functions of the fruit trees and affect the absorption and utilization of other elements. Excessive application of potassium fertilizer to apple trees can result in magnesium deficiency, and the content of calcium in the tree body will also decrease relatively.
In addition, when applying potassium fertilizer, it is preferable to use sulfate potassium, which has a high absorption and utilization rate, followed by potassium chloride. Organic fertilizers high in potassium content, such as wood ash or decomposed chicken manure, can also be scattered under the trees and then lightly buried and watered. Using a 0.3% to 0.5% solution of monopotassium phosphate for foliar spray can also yield good results.
The above is the full content of when to apply potassium fertilizer to apple trees, hoping it can help you. Also, and also hoping that everyone will come to see more green plant and flower experience and common sense!