Fertilization methods and matters needing attention in Chinese cabbage

Chinese cabbage, also known as Chinese cabbage, cauliflower, is a cruciferous herb, which has high edible value and planting value. Fertilization is an important work when planting Chinese cabbage. So how to fertilize the Chinese cabbage? Let's take a look at the detailed introduction.

1. The principle of fertilization

Chinese cabbage likes warm and humid climate, its root system is shallower, and it has more whisker roots, so it can survive after transplanting, so it is planted in sandy soil with rich organic matter and good drainage. The mineral demand of Chinese cabbage is the highest for nitrogen fertilizer, the second for potassium and the least for phosphor. it is proved that for every 1000 kg of Chinese cabbage, it is necessary to absorb 2.2-3.6kg of pure nitrogen, 0.6kg of phosphorus and 1.13.8kg of potassium. Therefore, attention should be paid to reasonable fertilization and should not be applied more or more.

2. Base fertilizer

Chinese cabbage is a fast-growing vegetable with shallow roots and short growing period, so it is necessary to apply sufficient basal fertilizer to meet its nutritional needs in the growing period. The base fertilizer is mainly rotten organic fertilizer and farm manure, and the amount of base fertilizer should be paid attention to. Generally, 80-100 kg of organic fertilizer per mu can meet the needs of cabbage heart growth in the early stage.

3. Topdressing

Although the growth period of Chinese cabbage is short, the whole growth period should be topdressing three times, once in the seedling stage, when nitrogen fertilizer is the main compound fertilizer, the fertilizer is mixed with 800 times of water, once every 3-5 days, a total of two fertilizers are applied to promote the growth of seedlings. The second time in the leaf growth period, nitrogen fertilizer is also used as the main compound fertilizer, but the concentration of fertilizer can be increased and it can be washed and applied once with 300 times of water. The third time in the late growth period, it is mainly high-potassium compound fertilizer, which can be washed and applied once with 300 times of water.

4. Points for attention

Immature farm manure and organic fertilizer should not be used directly. Immature farm manure contains a large number of eggs and bacteria, but also produces a lot of carbon dioxide and heat, which will burn out the roots of seedlings and affect seed germination. When using chemical fertilizer, we must pay attention to the concentration, too high concentration may cause the phenomenon of burning seedlings, which can easily lead to seedling death.

The above is the introduction of fertilization methods and matters needing attention in Chinese cabbage. I hope it can help you. If you want to know more about it, please follow us.