Cultivation techniques of cabbage

Cabbage is one of our very important vegetables, which is not only fresh and delicious, but also of great help to our health. Cabbage belongs to herbaceous plants, like cold climate, and strong heat resistance, easy to grow. So how on earth should kale be grown? The following editor will explain it to you in detail.

Planting techniques of cabbage

1. Select varieties

The precocious varieties with short growth period are selected, the weight of single ball is about 1 kg, and the harvest time is about 45 days after planting, which is more suitable for consumers' consumption habits, and does not affect the sowing time of overwintering vegetables in the next crop, such as the Dutch variety Switzerland and so on.

2. Sowing seeds at the right time

The temperature requirement of cabbage seedlings is not strict, but the temperature requirement of heading stage is very strict, which should be about 17 ℃, which is beneficial to the formation and growth of leaf balls. Therefore, the summer sowing time is around the end of July.

3. Land preparation and planting

It is appropriate to select the legumes or melons whose previous crops are non-cruciferous, applying rotten organic fertilizer 3000 kg per mu, nitrogen, phosphorus and potassium ternary compound fertilizer 30 kg per mu, turning the land to make a border with a width of 1.2m, planting 2 rows, plant spacing of 40 cm, and protecting seedlings of 2500000 plants per mu. When the seedling grows to 5 ~ 6 leaves, the seedling is sprayed once before planting, that is, the seedling cluster is re-sprayed with 600x chlorothalonil and 3000 times Wanling in the seedling bed, and it is managed properly after planting. In general, there is no need to use drugs, and there is basically no disease during the whole growth period. Planting water should be timely, in order to slow down the seedlings, not dry seedlings.

Cultivation techniques of cabbage

1. Make a seedbed: the seedbed should choose a pollution-free plot with good ventilation, high topography, convenient drainage and irrigation, no vegetables of the same family, and close to the planting field. The formula of seedling bed soil is 6 parts of field soil and 4 parts of mature organic fertilizer. 1 kilogram of ternary compound fertilizer, 80 grams of carbendazim and 100 grams of phoxim granule are added to every cubic meter of nutritious soil.

2. Sowing and dividing seedlings: in late July, fill the prepared seedling bed with enough bottom water, spread the seeds evenly, cover about 1 cm of fine soil, cover with film to moisturize, insert arches, and cover the sunshade net. When the seedlings are unearthed more than 70%, remove the plastic film in time to prevent the seedlings from being baked. When the seedlings grow to 2 leaves and 1 heart (about 10 days after sowing), once dividing the seedlings can be beneficial to survival in the evening or cloudy days. The seedling water should be watered in the dark trench and thoroughly.

3. Seedbed management: cabbage seedlings have strong resistance to stress, but the work of insect control and grass control must be done well to avoid being swallowed by insects and grass. The main pests are aphids, Plutella xylostella and Pieris rapae, which can be used alternately with Wanling and 1.8% avermectin. Due to the short time of seedling stage, depending on the situation of worms, the medicine can be used for 2 times.

Field management

Cabbage is a semi-low-temperature-tolerant vegetable. Cabbage needs a higher temperature when planting slow seedlings. The temperature in the greenhouse is 25: 28 ℃ in the daytime and no less than 10 ℃ at night, in order to promote the rapid growth of root system. Usually the seedlings can be slowed down after three or five days. Then enter the squatting seedling stage, properly lower the temperature, keep it at 20: 25 ℃ during the day, control the amount of water, squatting seedlings for about 10 days. Enter the rosette stage, according to soil moisture and seedling growth, irrigate small water and apply 15kg urea to promote the rapid growth of leaves. When entering the heading period, there is a great demand for phosphate fertilizer and potash fertilizer, and there is a great demand for water. It is necessary to apply 20 kg phosphate and potash fertilizer. It is better to see dry and wet in the field, and it is not suitable to pour heavy water. The temperature during the heading period should not be too high, and the air discharge should be gradually increased according to the increase of the external temperature, and the maximum amount of air release should not exceed 28 ℃ in the daytime.

Prevention and control of diseases

Due to the high humidity of the growing environment, two diseases often occur in cabbage production, namely downy mildew and black rot. The disease of cabbage downy mildew is that there are yellow polygonal irregular spots on the front of the leaves, serious perforation and a gray mildew layer on the back. Generally high incidence in the mid-heading high-humidity environment, you can choose silver in the initial prevention and treatment, continuous use of drugs twice. Black rot to root base leaf rot, there is a bad smell, there is a black plate, you can choose Wanjia spray twice.

Through the above content, I believe you have a certain understanding of the planting method of cabbage. Kale is a very nutritious and delicious vegetable, often eaten can supplement vitamins, improve immunity, anti-cancer and other effects, and the eating method of kale is very simple, cold cabbage or make salad, very delicious!