How to grow cabbage

1. Planting time: Chinese cabbage is mainly planted in autumn. According to its different varieties, the sowing time can be divided into: early-maturing varieties are sown in early or mid-August, and mid-late-maturing varieties are sown in late August to September. Sow seeds at the beginning of the month, while late-maturing varieties are best sown in late August.

2. Base fertilizer for soil preparation: Chinese cabbage can be grown in both north and south, so it does not have high soil requirements and can adapt to a variety of environments. However, loose and fertile sandy loam or loam rich in organic matter is best. Better, the first crop of the plot chosen for planting should not be Brassicaceae, and the crops should be rotated reasonably.

The land should be prepared and fertilized one week before sowing. The plot should be plowed deeply and finely raked, and then leveled to make a border. When making the border, furrows should be opened to facilitate drainage and irrigation. Apply 5000-7000kg of decomposed organic fertilizer per acre, and also mix it with 50kg of nitrogen, phosphorus and potassium compound fertilizer. Spread it evenly on the soil, combine it with the cultivated land, and mix the fertilizer and soil evenly.

3. Sowing and seedling cultivation: Choose high-quality seeds with strong stress resistance, strong cold tolerance, and no disease. When sowing, you can use three methods: drill sowing, hole sowing and machine sowing. Choose the appropriate sowing method for sowing. Generally, the dosage per mu is about 0.5kg.

Control the spacing between plants and rows when sowing. If the climate, soil and other conditions are good, you can plant them appropriately densely, otherwise you should plant them sparsely. After the seeds germinate, keep the soil moist to speed up the emergence of the seedlings. When they grow to 2-3 or 4-5 true leaves, thin out and replenish the seedlings once each, and remove some weeds, diseased seedlings, and weak seedlings.

4. Planting: When the seedlings grow to have 5-6 true leaves, they can be transplanted. When transplanting, choose a sunny afternoon and try to avoid strong sunlight at noon to increase the chance of survival. Rate. Also determine the density according to the variety and soil. Water immediately after transplanting to keep the soil moist. From now on, water once in the morning and evening for 3 consecutive days to slow down the seedlings and keep them alive.

5. Field management: The yield of Chinese cabbage is extremely high, so it requires a huge amount of fertilizer. In addition to applying sufficient base fertilizer during land preparation, timely top dressing is also required, usually after applying sufficient base fertilizer during the seedling stage. There is no need to topdress. If sufficient base fertilizer is not applied, 10 kilograms of ammonium sulfate per acre can be applied. When applying fertilizer, spread it on both sides of the seedlings. Do not apply it directly to the root system to avoid root burns. Water immediately after fertilization to prevent the seedlings from burning. Fertilizer is absorbed quickly.

After transplanting, apply fertilizer for the second time. The same is to apply 15-20 kg of ammonium sulfate, apply it in a ditch and water it; for the third time, during the rosette stage, apply 30 kg of ammonium sulfate. , 15 kg of superphosphate, combined with soil cultivation; for the fourth time during the balling stage, 15-20 kg of ammonium sulfate was applied. Watering is also extremely important, depending on the climate and soil. Water should be controlled at the end of the rosette stage, and watering should be done after the third top dressing. When the ball is formed, Chinese cabbage has a great demand for water, and the soil needs to be kept moist at all times. .

Extended information:

Pest control of cabbage

1. Aphids: 10% nicotine (Kanghelin) 800-1000 times liquid, 25% aphids Control with Ketai 750-1500 times solution and 3% acetamiprid (Mobiran) 2000-3000 times solution.

2. Rapeseed caterpillars, yellow-striped flea beetles and underground pests: Use deltamethrin (killing) 2000 times solution and 15% cypermethrin 1000 times solution for control.

3. Diamondback moth: Use 5% Ruijingte suspension agent per mu with 50-100 ml mixed with 60 kg of water for control. Biopesticides such as 5% Itopacin emulsifiable concentrate 2000 times liquid or 3% emamectin salt microemulsion 4000-6000 times liquid or 2% abamectin 3000-5000 times liquid. In addition, biological control technology - sex attractants can be used to trap and kill adult insects. In the early stages of diamondback moth occurrence, trapping and killing with low insect population density in the field can also have a good control effect.

4. Wild slugs (mole crickets): Place tiles, vegetable leaves, or bunches of vegetable poles or branches in the center of the field. They often hide in them after the sun comes out. They can be removed and killed intensively. Mix drugs such as snail enemy or Dingwoxi with rice bran, soybean sugar, grass, etc., and mix them into poisonous bait to kill rust. Use 0.7 kg of 6% Mida granules or 1-2 kg of 3% Snail granules per mu, crush it and mix with 5-7.5 kg of fine soil, and sprinkle it on the roots near the affected plants in the evening when the soil surface is dry in warm weather. After 2-3 days, wild slugs exposed to the agent secrete a large amount of mucus and die.

Reference: Baidu Encyclopedia-Baicai