The effect of applying more microbial fertilizer on protected vegetables
During the production of vegetables in protected areas, due to excessive fertilization year after year, some of the residual components of fertilizers not absorbed by vegetables will remain in the soil and will accumulate in the soil, causing damage to the soil and causing soil salinization and acidification. , Resulting in soil compaction, reduced permeability, easily lead to a variety of vegetable diseases. In the vegetable production process, by increasing the microbial fertilizer and reducing the application amount of chemical fertilizers, the soil can be obviously improved, the production cost can be reduced, and the quality of vegetables can be improved. This is because microbial fertilizer can activate the soil and decompose the nutrients fixed by the soil during the application process, thereby increasing the absorption and utilization of fertilizers. At the same time, microorganisms in microbial fertilizers can produce plants during growth and reproduction. Auxin stimulates crop growth to improve the quality of vegetables. Secondly, microorganisms can inhibit the occurrence and development of various soil-borne diseases in the process of growth and reproduction. It also has a strong inhibitory effect on root-knot nematode diseases. It is a new type of fertilizer that is non-toxic, economical and environmentally friendly and is worthy of being popularized and applied in the production of vegetables in protected areas. In the rational application of microbial fertilizer should pay attention to the following points:
1. Select a brand-name product with a complete document containing high bacteria.
2. Microbial fertilizers have low nutrient content and must be applied with other fertilizers. In the application of microbial fertilizers, microbial organisms in microbial fertilizers have the functions of nitrogen fixation, phosphate solubilization, potassium release, bacteriostasis, soil activation, and nutrient utilization. Therefore, after applying these fertilizers, the application amount of chemical fertilizers can be appropriately reduced.
3. The microorganisms in microbial fertilizers need to be grown and propagated in a suitable soil containing water, so the soil moisture cannot be too dry or too wet.
4. Microbial fertilizers cannot be used with bactericides.
5. Microbial fertilizers, whether they are basal or topdressing, cannot be exposed on the soil surface. Due to sunlight, the activity of microorganisms is reduced.
6. Pay attention to the date of production, and the activity of microorganisms in microbial fertilizers that have been placed for too long has declined.
7. The ground temperature in the winter and spring protected areas is low, and the growth and reproduction of low-temperature microorganisms slow down and their activity declines. The ground temperature should be increased and covered with straw, which will help increase ground temperature and enhance microbial activity.
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