Application of Biological Fertilizer in Greenhouses Greenhouses are used to produce vegetables with high yields and high prices, and growers enjoy good economic benefits. The price is controlled by the market, and human factors are difficult to control. However, we can increase the output of vegetables through reasonable and effective methods of fertilization. At the same time, we can improve the quality of the products in terms of appearance, sales, and taste, reduce costs, and greatly increase economic efficiency. The soil and environmental conditions in the greenhouse are different from those in the open field, and therefore there are also great differences in fertilization methods. The following describes the method of fertilizing vegetables in detail.
First, the seed. In order to obtain higher yields, it is necessary to start from “small†and it is also important to fertilize the seeds. The fertilization of seeds mainly refers to the use of microbial fertilizers and seed dressing. Bacterial fertilizer seed dressing can not only ensure the nutrient required for seed germination, but also can provide a good soil environment for the germination of seeds, which is conducive to raising seedling rate and cultivating strong seedlings. Two problems should be paid attention to when dressing seedlings with bacteria: 1. Use qualified quality of fertilizer. The inferior bacteria fertilizer is harmful to the seeds and it is useless. Do not use it. Should choose to have a reliable technical background and technical sources, quality and performance of a stable fertilizer, such as microbial fertilizer. 2, minimize the death of microorganisms. Fertilizer should avoid direct sunlight, and should be operated in the shade during seed dressing. Seed should be sowed immediately after dressing, and immediately cover soil. Microbial fertilizer cannot be mixed with harmful pesticides and chemical fertilizers.
Second, seedling period. The growth of seedlings can affect the entire growth period of vegetables, especially for vegetative growth. Therefore, nurturing strong seedlings is the key to achieving high yields and cannot be ignored. Phosphate fertilizer applied at the seedling stage (mycorrhizal fungi can greatly increase the efficiency of phosphate fertilizer). This will ensure the development of strong seedlings.
Third, base fertilizer. Fruity vegetables have a long growing time. Applying base fertilizer is the basis for high yield. If greenhouses are covered with plastic film, most fertilizers should be applied as base fertilizer because of the inconvenience of top dressing. The amount of fertilizer used in the old shed and the new shed is different. Because the old shed has more residual fat than the new shed soil, the new shed will be more fertilized than the old shed. Most of the old shed soil has excess nitrogen, phosphorus is rich, and potassium is insufficient. At this time, it is best to use professional starter (such as the fermentation agent has the function of nitrogen and potassium solution). Not only can reduce the loss of nutrients, but also can completely remove organic bacteria harmful bacteria, eggs and other harmful substances. It is even better if it can be combined with microbial fertilizers.
Fourth, top dressing. In fruity vegetables, the topdressing fertilizer should be dominated by available nitrogen fertilizers, combined with phosphorus and potassium fertilizers, and appropriate amount of microbial fertilizer. Biological bacterial fertilizer not only contains a large number of nitrogen-fixing, phosphate-solubilizing and potassium-releasing active bacteria, but also contains organic matter, humic acid and trace elements. In combination with other fertilizers, it will not only save the amount of fertilizer used, but also solve soil compaction and increase soil microbial content. Through the above methods of fertilization, it is believed that the majority of growers can obtain more ideal vegetable production, so as to achieve the purpose of increasing production, improving quality and increasing income.
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