Attention should be paid to fertilization of cucumber in greenhouse

First, increase the application of organic fertilizer.

Organic fertilizer can not only provide various nutrients for the growth and development of cucumber, but also reduce soil bulk density, increase soil porosity and improve soil physical and chemical properties. Therefore, organic fertilizer plays an important role in the continuous high yield of cucumber, activating and improving soil.

Second, rational application of chemical fertilizer.

The root system of cucumber is shallow and weak, and the root burning is caused by high fertilization concentration. Cucumber should eat less and eat more when applying chemical fertilizer, 25-30 kg of diammonium and 23-27 kg of potassium sulfate per mu of base fertilizer. In the process of cucumber growth, topdressing is needed at any time, and the total amount is 47-53 kg per mu of urea and 52-58 kg of potassium sulfate. The time of topdressing is generally controlled in the early stage, and in the later stage of growth, combined with irrigation and picking, topdressing nitrogen and potassium fertilizer every 7-10 days (or equal amount of irrigation).

Third, spraying foliar fertilizer.

Foliar fertilizer is generally used in the peak period of melon, and the nutrients are more abundant in the early stage. After melon fruiting, more fertilizer is needed, and foliar spraying of new high-fat film + Zhuangguatiling can supplement the nutrients needed by the plant.

Fourth, the application of biological bacterial fertilizer.

Increasing the application of organic fertilizer and biological bacterial fertilizer and properly reducing chemical fertilizer is the inevitable choice for the production of pollution-free green food. In the newly built greenhouse, 8 kg of high-quality organic biological fertilizer is applied at a time, cucumber grows healthily, melons are more, melon strips are long, and the picking period can be prolonged.