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How to improve the yield and quality of vegetables
Reasons for the decline in vegetable production The yield of off-season vegetable planting is high. After several years of continuous planting, not only the yield but also the quality is not as good as before, resulting in poor efficiency. The reason is that, except for the vegetable variety, the main reason is that the soil properties have undergone undesirable changes. One is the long-term application of chemical fertilizers to make the soil compact and poor in permeability. The second is the partial application of certain chemical fertilizers, which can produce antagonistic effects among chemical fertilizer elements, leading to the symptoms of nutrient deficiency in vegetables. The third is that farmers blindly increase the amount of fertilization, which increases the concentration of the soil solution, which often causes reverse osmosis of vegetables and inhibits growth and development. Fourth, after long-term application of chemical fertilizers, the pH value of the soil becomes smaller and smaller, which makes the soil severely acidified, the growth environment deteriorates, and the salt content increases. Measures to improve the yield and quality of vegetables In order to make vegetables grow and develop normally, we must start with improving fertilizer and water to improve the soil ecological environment and create conditions for increasing vegetable production. Turn the soil deeply to reduce the salt content. It is determined that the salt accumulates in the cultivated layer within 5 cm of the soil, and less in the soil below 25 cm. Therefore, after each crop of vegetables are harvested, the soil must be deeply plowed to reduce the salt content of the soil cultivation layer. Optimize fertilization and improve soil. The first is using organic fertilizer accumulated by farmers as much as possible. The second is to apply Bacillus subtilis bacterial fertilizer or organic compound fertilizer containing such substances or a variety of high-energy .
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