There are often pictures of deficiencies from vegetable growers, but few people really know the solution. Most people think that physiological diseases such as plant deficiency are caused by soil deficiency, but it is not. The following small series will talk to you about the causes and solutions of vegetable deficiencies in greenhouses.
At present, most of the vegetable cultivation is in the greenhouse, and the vegetables in the greenhouse are deficient, not because of the soil deficiency. Many of them are due to the high concentration of soil solution, serious soil compaction, less root hair, root aging, and absorption of fertilizer. Caused by factors such as poor ability.
In the process of planting greenhouse vegetables, whether it is a large amount of elements or organic fertilizer, the amount of these fertilizers is far greater than the amount of fertilizer used in the field. Generally, the amount of fertilizer used in greenhouses is more than 4 times that of the fertilizer in the field, but the water consumption in greenhouses However, only the rainfall of Daejeon vegetables is about half of the watering.
The amount of fertilizer used for planting in the field is small, the amount of water is very large, and the nutrient nutrients are lost a lot. However, in such cases, the symptoms of deficiency are rare, and the amount of fertilizer used is too large, and the soil with less water is often lacking. What about the phenomenon? In fact, the various elements in the soil of the greenhouse are not lacking, and the concentration of the soil solution is also high. However, few people think about the cause of deficiency.
Most growers overlook a very important link, that is, the ecological environment conditions in greenhouse cultivation have been very different from those in field cultivation.
Many growers are still accustomed to using the management methods of field cultivation when planting greenhouses. They are accustomed to using quick-acting fertilizers for irrigation and topdressing, not paying attention to soil cultivating and loosening, resulting in high soil solution concentration, soil compaction and deficiency. The phenomenon of oxygen. This causes the soil to inhibit the growth of roots, causing various physiological symptoms such as symptoms of deficiency. Solving this method is actually very simple. The base fertilizer is mostly made of fully decomposed organic fertilizer. After the planting, the roots are used for rooting or rinsing once, and alkaline fertilization is used.
At the same time, when spraying the pests and diseases on the foliar surface, a single trace element is used for spraying. Try not to use the so-called all-round foliar fertilizer. Because the content of various elements is limited, what is the best is not enough.
The above is the reason and solution for the deficiency of greenhouse vegetables in the small series compiled by Huinong . Have you learned?
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