Fertilization technology of kale

Kale is a 2012 herb of Brassica cruciferae, which has a long history of cultivation and has the effects of promoting diuresis and resolving phlegm, detoxifying and dispelling wind, relieving fatigue, clearing heart and eyesight. When growing kale, it is very important to master its fertilization technology, so how to fertilize kale? Let's take a look at the detailed introduction with the editor.

1. Principles of fertilization

Kale takes vegetative organs as fresh food, so in order to increase yield, fertilizing must be based on base fertilizer and supplemented by topdressing. Generally, topdressing should be started after planting, and the principle of thin application should be adopted in the early and later stage, and dense application should be adopted in the middle stage. Watering and topdressing during the seedling growth period can promote the vegetative growth of the plant, increase the leaf area and lay the foundation for cabbage.

2. Apply sufficient base fertilizer

The base fertilizer should be carried out according to the fertility status of the soil and the expected yield. if the fertility is medium, and the current yield is 1500-2000 kg, 2500-3000 kg per mu and 15-21 kg of nitrogen, phosphorus and potassium compound fertilizer should be applied as base fertilizer, and attention should be paid to the full maturity of farm manure so as not to cause dead trees. The soil with good fertility should be applied less, while the land with poor fertility should be applied more, so as to ensure the nutritional requirements of kale throughout the growth period.

3. topdressing at the right time

During the whole growing period, kale should be fertilized many times in time, from the seedling stage to harvest, the seedling stage should be applied frequently and thinly, generally once a week, mainly with thin manure, after planting, in order to ensure the yield and quality of the main mu, to re-apply fertilizer to promote mu, generally every 7-10 days to apply urea 10 kg per mu, compound fertilizer 30 kg, in order to avoid fertilizer injury to the root, to use the way of spraying. After harvesting the main moss, topdressing should be applied in time to promote the development of lateral moss, and the usage and dosage are consistent with those of promoting moss.

4. Points for attention

Kale has large leaf area and large transpiration, but its root system is shallow, so in order to increase yield, it is very important to supply adequate nitrogen fertilizer. In the rapid growth period of kale, if nitrogen fertilizer is insufficient, it will have a great impact on its yield and quality. It has been proved by practice that the supply of sufficient nitrogen fertilizer in the growing period of kale is the key to its high yield. the lack of nitrogen fertilizer makes the plant short, the leaves small and the basal leaves easy to wither and yellow, but if the nitrogen fertilizer is too large, it is easy to cause disease.

The above is the introduction of kale fertilization technology, hope to help you, want to know more related knowledge, please follow us.