Single fertilizer application Currently, vegetable farmers mainly use nitrogen fertilizer, while ignoring phosphate fertilizer, potassium fertilizer and micro-fertilizer, it is easy to cause salt concentration disorder in the soil and make the disease worse. At the same time, vegetables exhibit various symptoms of deficiency, resulting in reduced yield and quality.
Partial application of chemical fertilizers, improper application of organic fertilizer Some vegetable farmers think that it is convenient to use fertilizer, but organic fertilizer is troublesome and dirty. To this end, partial application of chemical fertilizers, resulting in soil organic matter decline, soil structure deterioration, affecting the quality and yield of vegetables. Some vegetable growers also know that organic fertilizer is very important in vegetable production, but it is often improperly applied. For example, the application of unfertilized organic fertilizer in vegetable fields leads to the production of toxic gases in the greenhouse and affects the growth of vegetables.
The time for top dressing is not appropriate. The amount of fertilizer absorbed by vegetables in different developmental stages is different and must be applied as needed. It is too early to be absorbed by the soil, leached by water, causing waste; it is too late to meet the growth needs of vegetables.
Abuse of foliar fertilizer, not paying attention to base fertilizer and topdressing. Currently, there are many foliar fertilizers on the market. After the vegetable farmers spray vegetables, the yield increase is very significant. Therefore, the base fertilizer is also less or not applied, and the top dressing is not chased. Spray fertilizer. In fact, foliar fertilizer provides very little nutrients, and its role is mainly to absorb nutrients from the soil and absorb nutrients from the soil. Therefore, we must pay attention to the nutrient supply of the soil.
Do not understand the characteristics of fertilizers, improper use Before using a certain fertilizer, first of all to grasp its characteristics. For example, urea is not easy to be converted when the ground temperature is lower than 15 °C, and can not be effectively absorbed by vegetables; nitrate-based nitrogen fertilizer is easily leached by water, and should not be applied on low-lying land and aquatic vegetables; Potassium chloride and the like contain chlorinated fertilizer.
Partial application of chemical fertilizers, improper application of organic fertilizer Some vegetable farmers think that it is convenient to use fertilizer, but organic fertilizer is troublesome and dirty. To this end, partial application of chemical fertilizers, resulting in soil organic matter decline, soil structure deterioration, affecting the quality and yield of vegetables. Some vegetable growers also know that organic fertilizer is very important in vegetable production, but it is often improperly applied. For example, the application of unfertilized organic fertilizer in vegetable fields leads to the production of toxic gases in the greenhouse and affects the growth of vegetables.
The time for top dressing is not appropriate. The amount of fertilizer absorbed by vegetables in different developmental stages is different and must be applied as needed. It is too early to be absorbed by the soil, leached by water, causing waste; it is too late to meet the growth needs of vegetables.
Abuse of foliar fertilizer, not paying attention to base fertilizer and topdressing. Currently, there are many foliar fertilizers on the market. After the vegetable farmers spray vegetables, the yield increase is very significant. Therefore, the base fertilizer is also less or not applied, and the top dressing is not chased. Spray fertilizer. In fact, foliar fertilizer provides very little nutrients, and its role is mainly to absorb nutrients from the soil and absorb nutrients from the soil. Therefore, we must pay attention to the nutrient supply of the soil.
Do not understand the characteristics of fertilizers, improper use Before using a certain fertilizer, first of all to grasp its characteristics. For example, urea is not easy to be converted when the ground temperature is lower than 15 °C, and can not be effectively absorbed by vegetables; nitrate-based nitrogen fertilizer is easily leached by water, and should not be applied on low-lying land and aquatic vegetables; Potassium chloride and the like contain chlorinated fertilizer.
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