Detailed explanation of planting techniques of dish vegetables

Dish, also known as kohlrabi, is the main vegetable in southern Zhejiang in winter. the fleshy roots are tender and dense for stir-frying, cooking or pickling. Many farmers will grow some dishes. Let's take a look at the planting techniques of dishes.

First, sowing seeds

In cool mountain areas, seedlings are generally raised from late July to early August, and the seedling bed chooses loose and fertile sandy loam with convenient drainage and irrigation, applies enough organic fertilizer, pours enough water, and sows grass to protect moisture after sowing to facilitate seedling emergence. When raising seedlings, the temperature is high and there are many thundershowers. After emergence, pay attention to shading, cooling and moisturizing, and prevent rainstorm erosion. After the true leaves are unfolded, light dung water is applied to promote the seedlings. Generally, when two true leaves are fully unfolded, you can choose to transplant in time on a cloudy day. Plant 3000-4000 plants per mu, plant spacing 30-40 cm, row spacing 50 cm, hole application per mu, 50 kg calcium magnesium phosphate fertilizer to protect 40 grams of soil inoculum, water after planting.

II. Fertilization

Topdressing in time after living trees, generally 5-7 days after planting, 15 kg per mu with potassium sulfate compound fertilizer, dish about the size of ping-pong ball, combined with soil again, 10 kg per mu with potassium sulfate compound fertilizer. According to the seedling condition, some nitrogen fertilizer should be applied, such as ammonium bicarbonate, urea and so on.

Third, watering

1. Seedling growth period: three days after planting, water was watered once in the morning and once in the evening. On the third day, after the seedlings survive, gently remove the straw or bristlegrass to expose the leaves, and the surrounding of the plant (fleshy root ball) is still covered with grass, although the fleshy root is open, the soil should be kept loose, and the exposed fine roots should be ploughed, weeded and cultivated after rain and before fertilization; watering is the principle to keep the soil moist.

two。 Seedling rosette stage: fresh and mature urine was applied every 3 days, and feces and urine of rotten acquaintances were poured between plants every 15 days for a total of 3 times. The temperature of seedlings in the early stage was high, and the concentration of feces and urine of mature people should be light. With the gradual increase of seedling growth concentration, the border should be kept moist, and the drought should be watered frequently.

3. The fleshy root expands rapidly, the leaf growth slows down, and the amount of water and fertilizer required in this period is the largest, so it is not suitable to apply nitrogen fertilizer, but to increase phosphorus and potassium fertilizer.

IV. Pest control

The main pests of cabbage are aphid, cabbage borer (cabbage borer), cabbage worm, Spodoptera litura, Plutella xylostella and yellow striped beetle, and the main diseases are downy mildew, turnip virus disease, soft rot and bacterial angular spot.

Dish vegetables are the main vegetables in southern Zhejiang in winter, and the market sales are also considerable, and after pickling, they can be preserved for a long time, and they can be planted in a large area.