To prevent premature aging of vegetables, we should start with the causes of premature aging of vegetables and strengthen field management.
One is to water and fertilize properly to avoid root injury and cause premature aging.
In the spring, the temperature warmed up, and many vegetable farmers increased their fertilizer and water supply. As a result, the “fat too much burns the roots and the water damages the roots†causing damage to the capillary roots, which makes the endogenous auxin and nutrient supply needed by the plants insufficient, resulting in yellow leaves. Decreased leaf function and insufficient supply of photosynthetic products caused premature senescence of plants.
The second is the excessive use of growth regulators, causing hormone poisoning and premature aging.
Dipping flowers and dipping melons are commonly used measures to preserve flowers and fruits by vegetable farmers. In low temperature, the amount of regulators used is large. Long-term and continuous use can easily cause hormone accumulation and poisoning and cause premature plant senescence. In addition, some vegetable farmers are accustomed to spraying high concentrations of paclobutrazol, chlormequat, mepiquat, etc. to control the growth of vegetables. However, if the concentration of the medicine is too large, it is easy to form aging seedlings, resulting in slow plant growth.
In this regard, it is recommended that vegetable farmers should establish a management concept that emphasizes both vegetative growth and reproductive growth, and rationally regulate the growth of vegetables, and do not miss the high-yield and high-efficiency of the entire growth period of vegetables for temporary gains. For plants with hormone poisoning, 600 times of cytokinin can be sprayed on the leaf surface, mixed with love, and 6000 times more can be used for relief.
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