Boron plays an important role in the formation and operation of carbohydrates in plants, and can promote the rapid growth of meristems and the normal development of reproductive organs. It can also prevent a variety of physiological diseases, such as calcium deficiency, leaf scalding, etc. . When the plant lacks boron, the meristem cells of the apex of the root tip and the stem vines are killed and the death of the meristem cells is impaired, resulting in the death of the stem tips and affecting calcium absorption. As a result, the symptoms of boron deficiency and calcium deficiency are shown. When the soil is dry, the content of water-soluble boron in the soil decreases, affecting root absorption and root growth, leading to lesions and affecting the absorption of calcium, induced boron deficiency, calcium deficiency syndrome. In addition, some plots of the soil itself may be deficient in boron, which also causes the plant body to exhibit boron deficiency and calcium deficiency.
Therefore, the local block showed symptoms of calcium deficiency, resulting in some diseases, it is not enough to only calcium, but to carefully identify whether there are symptoms of boron deficiency.
The boron deficiency of the plant showed yellowing of the young leaf margin, the inner arch of the leaf, and the edge curled downwards. The entire leaf was parachute-like. Some parts of the top of the plant become brown and dead, making it unable to continue to elongate. The plants with excess boron showed a yellowish-white color from the lower leaf margin, yellow-white spots between the leaves, and gradually expanded toward the upper leaves.
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