Brussels sprouts, also known as sprouts, bears cabbage, with fresh leaflets as products, the appearance is exquisite and lovely, the leaves are soft, the green is attractive, suitable for frying, cold salad, hot pot side dish, pickled and so on. Originating in the Mediterranean coast, it has been introduced to China in recent years and has become a fashionable special dish. The wintering cultivation techniques are now introduced as follows:

1 sowing seedlings

In the first ten days of August, seedlings are selected. 6 parts of high-quality large field soil and 4 parts of soil and fertilizer are mixed. The mixture is sieved. 500 m of potassium dihydrogen phosphate is added to each cubic meter of bed. The seedlings of 10 cm and 10 cm are used to grow 667 square meters. Need to plant 10-15 grams, you can also choose 72-hole tray with grass charcoal, vermiculite mixed matrix for seedling, daytime temperature is maintained at 18-25 ° C, night 10-15 ° C, 3-5 days Qi Miao, slightly reduced after seedling The temperature is long, and the seedling age is 40-50 days. It can be colonized with 5-6 true leaves.

2 colonization

The growth period of Brussels sprouts is long and the plants are tall. It is required to apply sufficient base fertilizer before planting. Apply 5,000 kilograms of high-quality soil fertilizer per 667 square meters, 50 kilograms of compound fertilizer, 30 cm of ploughing depth, and leveling for sputum. Rice (including glutinous rice), planted in two rows, plant spacing of about 40 cm, density of 2 000 plants / 667 square meters, when planting, do not loosen the soil, pay attention to protect the root system to shorten the slow seedling time.

3 Field management

3.1 Temperature Management

Brussels sprouts have a cool climate. From mid-September to early November, the plants enter the most vigorous growth period: the daytime temperature is maintained at 20-26 °C, the night is 10-15 °C, and the late night temperature is below 5 °C. Covering; from mid-November to mid-February, this period has entered the winter, the lower bud ball begins to form, the temperature requirement during the ball-forming period is low, do not carry out high temperature management, the daytime temperature is 20 °C, and the nighttime is about 5 °C. In the winter greenhouse, the grasshopper should be uncovered early, try to extend the time of seeing light, increase the ventilation in spring, and try to create environmental conditions suitable for its growth.

3.2 Water and fertilizer management

After planting, the seedling water is poured once, and the cultivating is strengthened before the rosette period to promote root development. In the small bud ball expansion period and harvesting period, increase the amount of watering, picking up one or two times of topdressing once every time, applying 10-15 kg of urea each time, in the middle of plant growth, keep the ground dry and dry, not missing Water, do not break the fat.

3.3 Remove old leaves and slings, brackets

When the cabbage leaflet is formed, the lower disease, the old and the yellow leaves should be removed to facilitate ventilation and light transmission. As the leaf ball grows, the large blade should be removed from the base of the petiole to avoid squeezing the leaf ball and deforming. When the temperature is high, remove the lower axillary bud and loose bud ball in time. In the middle and late stages of plant growth, use slings to wrap the stems or use bamboo rafts as a support to prevent lodging.

3.4 Pest Control

The main diseases are black rot and gray mold, which can be sprayed with 72% agricultural streptomycin sulfate 3,000 times solution and 50% keering 1500 times solution respectively. The main pests are aphids, diamondback moths, and 20% can be used. Fodoro 4 000 times liquid, 5% taibao 1 500 times liquid or Paul 1 500 times liquid control.

4 harvesting

The mature leaf ball is fully inflated, the ball is firm, and the appearance is bright. At this time, it can be harvested one by one from bottom to top. In the later stages of growth, the temperature is high, and the individual leaves that do not hold the ball should not remain on the plant. 667 square meters can be harvested at 1,500 kilograms.

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