At present, soil deterioration, such as soil compaction and aggravation of salt damage, has become increasingly apparent in many vegetable-producing regions. How to solve the problem of many vegetable farmers? Should it be changed in the subsequent flushing?
In general, soil compaction and salinization are mainly due to large-scale application of chemical fertilizers and ignoring the application of organic fertilizer, which results in the decline of soil fertility and the scarcity of organic matter, which in turn reduces the air permeability of the soil. Therefore, for the problems raised by vegetable farmers, when replenishing with water, organic matter should be added to improve the utilization of fertilizers and reduce nutrient loss is the key to change.
First, organic fertilizer and chemical fertilizer are mixed and applied. Crushing organic fertilizer can be selected from chicken manure, pig manure, etc., but it must be noted that chicken manure or pig manure must be fully decomposed, so as to avoid causing burning root smoked seedlings or causing pests and diseases. However, organic fertilizers are not suitable for continuous application and should be used in combination with chemical fertilizers. Mixing or rotary rinsing may be used.
Secondly, reduce the amount of fertilizers and select all water-soluble quick-release fertilizers for flushing. All-water-soluble fast-acting fertilizers have a full nutrient content, a high content, a small amount, and a high utilization rate. Under normal circumstances, each flush of 4-5 kg ​​per acre can be used.
Finally, add biological bacteria fertilizer. Most of biological bacterial fertilizers have the effect of decomposing potassium and phosphate, although the nutrient content is not high, but it can release the fixed phosphorus and potassium in the soil for the absorption and utilization of vegetables, and play a role in degrading salt damage and promoting plant growth.
Of course, the lack of trace elements in the soil is an important manifestation of soil degradation in recent years because of repeated plantings. Therefore, in the adoption of the above measures, attention should also be paid to the selection of rooting agents that can activate the soil and promote root growth.
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