Five wonders of fertilization, do you know?
First, the application of a single fertilizer species. At present, vegetable farmers mainly use nitrogen fertilizers to fertilize, while neglecting phosphate fertilizers, potash fertilizers, and trace fertilizers, resulting in too much nitrogen and waste. It is also easy to cause salt concentration in the soil and increase disease severity. At the same time, due to the partial application of nitrogen fertilizer, vegetables exhibit various symptoms of nutrient deficiency, resulting in reduced yield and quality.
Second, partial application of chemical fertilizers, organic fertilizer and biological fertilizer, such as insufficient attention and improper application. Some vegetable farmers believe that the application of chemical fertilizers is convenient, simple, and trouble-free. However, organic fertilizers are troublesome and dirty. Therefore, the application of chemical fertilizers causes the decline of soil organic matter and the deterioration of soil structure, which affects the quality and yield of vegetables. Some vegetable farmers also believe that organic fertilizer is very important in vegetable production, but it is often misused. For example, the application of unprocessed organic fertilizer in vegetable fields leads to toxic gases in greenhouses (greenhouses) that affect the growth of vegetables. It is recommended that users use more of them. Fertilizer starter treatment of organic fertilizers and then application.
Third, improper dressing time. The absorption of fertilizers in vegetables at different stages of development is different and must be applied at the right time as needed. The application is too early, it is easily absorbed by the soil, and it is lost by the water and causes waste. It is not enough to meet the needs of vegetable growth.
Fourth, pay attention to and abuse of foliar fertilizer, do not pay attention to basal fertilizer and top dressing. At present, there are a lot of foliar fertilizers on the market. After the vegetable growers spray vegetables, the yield is very significant. Therefore, the base fertilizer also has little or no application, and the top dressing is not chased. It only depends on foliar spray fertilizer. In fact, the foliar fertilizer provides very few nutrients, and the effect of foliar fertilizer mainly relies on regulating the metabolism in the plant and absorbing nutrients from the soil. The soil is the root of the plant and must pay attention to the nutrient supply of the soil.
Fifth, do not understand the characteristics of chemical fertilizers, improper application. Before applying a fertilizer, one must first master its characteristics before it can be applied according to its characteristics. Such as urea in the ground temperature below 15 °C is not easy to transform, can not be effectively absorbed by vegetables; nitrate nitrogen fertilizer easily leached by water, should not be applied in low-lying land and aquatic vegetables; avoid chlorine vegetables can not be excessive application of ammonium chloride , Potassium chloride and other chlorinated fertilizers.
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