Detailed Explanation of Key Points of Cabbage Planting and Cultivation Techniques
Cabbage is one of our very important vegetables; it is not only tender and delicious, but also greatly beneficial to our health. Cabbage is a herbaceous plant that prefers cold climates and also has strong heat tolerance, making it easy to grow. So how exactly should cabbage be planted? Below, the editor will explain it to you in detail.
Cabbage Planting Techniques
1. Choosing varieties
Choose early-maturing varieties with a short growth period, with a single head weighing about 1 kg, and about 45 days from transplanting to harvest. This is relatively suitable for consumers' consumption habits and does not affect the sowing period of the next overwintering vegetable crop, such as the Dutch variety Swiss Multi and others.
2. Timely sowing
Cabbage seedlings are not strict about temperature requirements, but the heading stage has very strict temperature requirements and should be around 17°C, which is beneficial to the formation and growth of the leaf head. Therefore, the summer sowing time is around late July.
3. Land preparation and transplanting
It is advisable to choose a plot whose previous crop was beans or melons rather than cruciferous crops. Apply 3000 kg of decomposed organic fertilizer and 30 kg of nitrogen-phosphorus-potassium ternary compound fertilizer per mu, plow the land and make beds. The bed width is 1.2 m, with 2 rows planted, plant spacing 40 cm, and 2500-3000 plants retained per mu. Transplant when the seedlings grow to 5-6 leaves. Spray once before transplanting, that is, when the seedlings are clustered in the seedbed, spray once heavily with 600 times chlorothalonil plus 3000 times Wanling. If managed properly after transplanting, generally no pesticide is needed, and basically no disease occurs throughout the whole growth period. The transplanting water should be timely to help the seedlings recover, and the seedlings must not be dried out in the sun.
Cabbage Cultivation Techniques
1. Making the seedbed: The seedbed should be selected as a pollution-free plot with good ventilation, higher terrain, convenient irrigation and drainage, where vegetables of the same family have not been planted, and relatively close to the transplanting field. The formula for seedbed soil is 6 parts field soil and 4 parts decomposed organic fertilizer. For each cubic meter of nutrient soil, add 1 kg of ternary compound fertilizer, 80 g of carbendazim, and 100 g of phoxim granules, mix well and make beds. The bed width is 1.2 m, and the length is unlimited.
2. Sowing and seedling separation: In late July, irrigate the prepared seedbed with enough bottom water, spread the seeds evenly, cover with about 1 cm of fine soil, cover with film to retain moisture, insert arches, and cover with shade netting. When more than 70% of the seedlings emerge, remove the plastic film in time to prevent burning the seedlings. When the seedlings grow to 2 leaves and 1 heart (about 10 days after sowing), carry out 1 seedling separation. Separating seedlings in the evening or on cloudy days helps survival. The seedling separation water should be poured into the hidden ditch and poured thoroughly.
3. Seedbed management: Cabbage seedlings have strong stress resistance, but pest and weed control must be done well to avoid the seedlings being devoured by insects and weeds. The main pests include aphids, diamondback moths, and cabbage caterpillars, and Wanling and 1.8% avermectin can be used alternately. Because the seedling stage is short, depending on the insect situation, generally 2 applications are enough.
Field Management
Cabbage is a semi-cold-tolerant vegetable. When cabbage has just been transplanted and is recovering, it needs a relatively high temperature. In the greenhouse, the daytime temperature should be kept at 25-28°C, and at night not lower than 10°C, to promote rapid root growth. Generally, the seedlings can recover after three to five days. After that, it enters the seedling-stabilizing stage, and the temperature should be appropriately lowered, kept at 20-25°C during the day, with water controlled, and seedling stabilization for about 10 days. Entering the rosette stage, according to soil moisture and seedling growth, pour a small amount of water and apply 15 kg of urea to promote rapid leaf growth. When entering the heading stage, the demand for phosphate fertilizer and potassium fertilizer is relatively large, and the demand for water is also relatively large. Apply 20 kg of phosphate and potassium fertilizer. In the field, it is best to keep it alternately dry and wet, and it is not suitable to pour large amounts of water. The temperature during the heading stage should not be too high. According to the rise in outside temperature, gradually increase ventilation, and the daytime maximum should not exceed 28°C.
Disease Control
Because of the high humidity in the growing environment, greenhouse cabbage production often suffers from two diseases, namely downy mildew and black rot. The symptoms of cabbage downy mildew are yellow, irregular polygonal lesions on the front of the leaves, with perforation in severe cases, and a layer of gray mold on the back. It generally occurs frequently in high-humidity environments in the middle heading stage. Infinito can be selected for control at the early stage of onset, with continuous application twice. Black rot shows rot at the base leaves, with a foul odor and black patches. WanJia can be selected and sprayed twice.
Through the above content, I believe everyone has gained a certain understanding of cabbage planting methods. Cabbage is a very nutritious and delicious vegetable. Eating it often can supplement vitamins, improve immunity, and have anti-cancer and cancer-preventing effects. Moreover, the ways to eat cabbage are particularly simple. Cold-dressed cabbage or making salad is very delicious!