Planting time and method of hot cabbage

Hot cabbage is often planted in high-temperature and rainy summer. It is an early-maturing, heat-resistant and disease-resistant cabbage variety. When the harvest is on the market, there is also a vacancy of cabbage on the market. So what is the time and method of growing hot cabbage?

First, planting time

Hot cabbage can be cultivated from mid-May to early September. The transplanting seedlings were 18-25 days old and harvested 20-25 days after transplanting, 35-40 days from sowing to harvest.

II. Planting methods

1. Sowing: seed dressing with carbendazim before sowing can prevent the occurrence of diseases at seedling stage. Due to the short growth period of hot cabbage, direct seeding is often used in production. Reasonable close planting is an effective way to increase yield. Direct seeding according to the row spacing of 35-40cm × 50cm, cut a shallow trench of 3-4cm long and deep 1.0cm on the ridge, sow seeds evenly in the hole, sow 4-5 seeds in each hole, cover the soil flat hole, the density is 3500 plants / mu, and the seed amount is 80-100g. Pay attention to the weather forecast when sowing to prevent rainstorm from affecting seedling emergence. High temperature moisture dissipates quickly in summer, so we must pay attention to keep the ground moist before emergence to avoid the phenomenon of lack of seedlings and broken ridges. If the soil moisture is insufficient, it should be watered immediately after sowing and covering the soil, and then watered every other day, so that the seedlings can be ready in 2-3 days.

two。 Inter-seedling: between seedlings and fixed seedlings, it is necessary to remove small seedlings, weak seedlings, diseased seedlings, miscellaneous seedlings. Generally, seedlings are required to grow 3 times, the first time when the seedlings have 2 true leaves, the second time when the seedlings grow to 3-4 leaves, and when the seedlings grow to 7-8 leaves. The seedlings removed when the seedlings are fixed can be sold as high-quality pakchoi. The seedlings should be watered in time after each seedling to prevent the roots from loosening.

3. Fertilizer and water: the growth period of hot cabbage is short and grows rapidly. There is no obvious rosette stage from sowing to harvest. It belongs to the type of simultaneous growth of outer leaves and globular leaves. Therefore, do not squat seedlings in management, should be both fertilizer and water attack (application of quick-acting nitrogen fertilizer), promote to the end. Application of ammonium sulfate 7-8 kg per mu after seedling topdressing, heavy fertilizer once after seedling setting and heading stage, 15-20kg and urea 5-8kg per mu, combined with watering and topdressing. Because the growing period of hot cabbage is in the high temperature of hot summer and early autumn, the water evaporation is large, if the water is insufficient, the leaf ball is loose and the yield is reduced, so it should be watered in time. Watering should be mastered frequently in order to reduce the surface temperature and keep the ground in a moist state. Stop watering one week before harvest. Fertilization and watering should be carried out in the evening to meet the needs of rapid plant growth at night. There are many Rain Water in summer, so it is necessary to drain and loosen the soil in time after heavy rain.

4. Diseases and insect pests: hot cabbage has a strong ability to resist soft rot, downy mildew and virus disease, and it is generally less sick under good management, but because of high temperature and rain in summer and rampant insect pests, the prevention and control of diseases and insect pests should not be taken lightly.

Hot cabbage can be harvested about 50-60 days after sowing. At this time, the market is the vacuum period of cabbage listing, and the sales are considerable.