Planting techniques of Chinese cabbage in greenhouse

First, the seeds with disease resistance and early heading were treated with warm water or medicament, and then sowed in a nutrition bowl. Planting in time after emergence. When planting, it is necessary to fertilize and ridge, and add a small arch shed in the greenhouse. Finally, we can do a good job in watering, fertilization and pest control.

Fertilization method of cabbage in greenhouse:

1. Apply enough organic fertilizer

Adequate application of basic fertilizer is the basis for a bumper harvest of Chinese cabbage. In general, the soil fertility of the old vegetable field is high, and the application of organic fertilizer should be appropriate, while the soil fertility of the new vegetable field is not high, so it is particularly important to re-apply the mixture of organic fertilizer and phosphate fertilizer as base fertilizer.

two。 Skillful application of seedling fertilizer

After the cotyledons of Chinese cabbage grow, the main root has reached about 10 cm, and the first-order lateral root has the ability to absorb water and fertilizer. In the case of insufficient base fertilizer or no seed fertilizer, a small amount of seedling fertilizer should be applied, 5kg urea per mu to promote growth. When fertilizing, emphasis should be placed on the application of small and weak seedlings to promote the formation of strong seedlings.

3. Reasonable topdressing

Generally speaking, it is the key to ensure the high yield of Chinese cabbage that the seedlings begin to enter the rosette stage and fertilize twice before the beginning of heart dressing. At this time, Chinese cabbage is in the period of rapid growth, so the amount of topdressing should be increased, mainly nitrogen fertilizer, combined application of nitrogen fertilizer and phosphorus and potassium fertilizer, or regular application of water manure. During the growth period, foliar spraying of 1000 times diluted Ke Zi 891 plant growth hormone (titanium citrate water agent) or 0.5% of 1% urea and potassium dihydrogen phosphate mixture can increase the net vegetable rate of Chinese cabbage and increase the commodity value.

4. Attach importance to the application of potash fertilizer

The application of potash fertilizer can enhance the disease resistance and storage tolerance of Chinese cabbage, but the application of potash fertilizer is often ignored in production. The general amount of potassium application is 20 kg of potassium sulfate or 15 kg of potassium chloride. Some plant ash can be applied when there is a lack of potash fertilizer.

The above is the whole content of Tuliu.com editor about the cultivation of cabbage in the greenhouse, which can be used as a reference to understand.