In the old-fashioned vegetable shed, the application technology of winter fertilization, the soil salinization problem of the old vegetable shed is serious, and the heat preservation is poor, and it is easy to hurt the roots when entering winter. Therefore, the choice of winter fertilization should be considered from the aspects of alleviating soil salinization and increasing ground temperature.
Biological fertilizer application
Bio-fertilizer can release the fixed nitrogen, phosphorus and potassium in the soil, and promote the soil fertility improvement. The effect is more obvious in the old vegetable shed.
Application of humic acid fertilizer
The nutrient content of nitrogen, phosphorus and potassium in the soil of the old vegetable shed is high, and the humic acid fertilizer can increase the utilization rate of phosphorus and potassium and some trace elements in the soil. Increasing the application of humic acid fertilizer can reduce the amount of chemical fertilizer applied by about 1/3. Such fertilizers commonly used in vegetable production include nitro-humic acid, ammonium humate, sodium humate, potassium humate, potassium nitro-humate, diammonium humate, and humic acid phosphate.
Application of fully water soluble fertilizer
The amount of fully water-soluble fertilizer is small (5-8 kg per mu), the utilization rate is high (85% or more), and the application of winter and biological bacterial fertilizer is a mode of fertilizer that is worth promoting.
This article URL: Application Technology of Winter Fertilization in Old Vegetable Shed
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