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Two harms: excessive fertilization is easy to cause fruit tree poisoning. Due to the application of a large amount of fertilizer, the concentration of the soil solution is increased, so that the roots absorb the water and the inorganic salts, which causes the aboveground parts to wilting. If not remedied in time, the tree will die due to the inability to absorb water.
Three harms: affect the quality of the fruit. In the late stage of fruit growth, if a large amount of nitrogen fertilizer is applied, the sugar content of the fruit will be reduced, the hardness will be lowered, the coloring will be poor, and storage will be imperfect, thereby reducing the commercial value.
Fruit trees have three harmful effects in excessive fertilization
One harm: excessive fertilization will cause imbalance of nutrients in the tree. There is an antagonistic effect between the nutrient segregants, that is, the presence of a certain nutrient segregant can inhibit the activity of another or a plurality of nutrient segregants, thereby affecting the absorption of the tree body. For example, the application of nitrogen fertilizer in acidic soil should not be too much, otherwise it will be difficult for crops to absorb calcium ions. Excessive application of calcium fertilizer can induce crops suffering from zinc, boron, iron, magnesium and manganese deficiency. Excessive potassium use will also affect the absorption of calcium and magnesium ions by fruit trees.
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