How to prevent potassium deficiency in pear trees

Many farmers have found that some pears have shorter internodes and their leaves become smaller and yellow-green. Their leaf margins are curled up, browned, and scorched. In severe cases, the leaves of the tree are all like fire, especially in the land. Bare trees have become more serious, affecting tree vigor and yield. Many fruit growers cannot figure out what is going on, thinking that it is a disease such as phytotoxicity or leaf spot disease. In fact, this is a typical physiological disease caused by severe potassium deficiency. Because in the pear orchards, fruit growers planted large quantities of sweet potatoes, peanuts, yellow tobacco and other large quantities of potassium crops. However, when fertilizing, they tended to focus on nitrogen and phosphate fertilizers while ignoring the use of potash fertilizer. Long-term cultivation of these trees caused severe potassium deficiency in pear trees. The above symptoms must take the following measures:

Spray fertilizer in a timely manner spray 0.3% ~ 0.5% potassium trihydrogen phosphate and urea mixture 2 ~ 3 times, as soon as possible nutritional supplements, restore tree vigor.

Topdressing Bao Zhuang timely topdressing potassium dihydrogen phosphate and urea and other quick-acting fertilizers, with special fertilizers such as fruit trees and other long-term compound fertilizer, to ensure that plants grow robustly.

Reduce fruit loss by thinning fruit, reduce nutrient consumption, and promote vegetative growth.

Changing the old habit of making large quantities of potassium-needed crops during long periods of change.

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