Biological fertilizer can release fixed nitrogen, phosphorus and potassium from soil and promote soil fertility. Especially in the old greenhouse, the effect of using biological fertilizer is more remarkable. In order to ensure that vegetables absorb enough nutrition, it is suggested that vegetable farmers should rotate biological fertilizers and compound fertilizers.Choose humic acid fertilizers
Humic acid fertilizer can improve the utilization rate of phosphorus, potassium and some trace elements in soil. Humic acid fertilizer has synergistic effect on phosphorus and potassium. On the basis of increasing humic acid fertilizer, the amount of chemical fertilizer can be reduced by about 1/3. Humic acid organic fertilizer, nitro humic acid, ammonium humate, sodium humate, potassium humate, diammonium humate, humic acid phosphate fertilizer and so on can be used by vegetable farmers.
choose fully water-soluble fertilizer
The amount of fully water-soluble fertilizer consumption is small. The greenhouse of one mu can only use 5-8 KGS. The utilization rate is as high as 85%. It can supplement the nutrition needed by crops and rotate with biological bacteria fertilizer. Which is worth popularizing.
Vegetable greenhouse is a relatively closed production environment. Lack of organic matter supplement for a long time. It is easy to induce rational diseases. But this disease is easy to be considered as bacterial or fungal disease. Chemical pesticide treatment is not helpful. Vegetable fertilizer should be based on improving soil fertility. Reducing nitrate content. Iimproving vegetable quality and increasing yield. Take organic fertilizer as the main, popularize formula fertilizer. Achieve nitrogen fixation, phosphorus stability, potassium increased. Advocate the use of organic-inorganic compound fertilizer, organic-inorganic mixed fertilizer and organic base fertilizer.
Vegetable greenhouse is a relatively closed production environment. Lack of organic matter supplement for a long time. It is easy to induce rational diseases. But this disease is easy to be considered as bacterial or fungal disease. Chemical pesticide treatment is not helpful. Vegetable fertilizer should be based on improving soil fertility. Reducing nitrate content. Iimproving vegetable quality and increasing yield. Take organic fertilizer as the main, popularize formula fertilizer. Achieve nitrogen fixation, phosphorus stability, potassium increased. Advocate the use of organic-inorganic compound fertilizer, organic-inorganic mixed fertilizer and organic base fertilizer.