High Yield and Good Quality Cultivation Techniques of Brassica juncea

Stems used mustard, alias cabbage head, head, bag vegetables, croissants, water chestnuts, etc., is a variant of the Brassicaceae Brassica, feeding on the enlarged stem, can be boiled, soaked, cold, fried, marinated Among them, there are protruding variants on the enlarged stem suitable for processing, processing products called mustard. The farmers in Jiaozuo, Shizhuang Village of the city, have used the greenhouse in winter and have been successfully planted for six years, which not only meets the needs of consumers, but also obtains better returns.

First, choose a good species

Selection of wide adaptability, strong resistance, not easy to twitch, strong growth, strong cold resistance, high quality fragrance, a variety of potential for increasing production potential, such as extra large vegetables, selected mustard, goose and cabbage, early morning on the 12th, early Round 13 and so on.

Second, the application of base fertilizer

The soil layer is deep, loose and fertile soil, 5000-6000 kg of quality rot fertilizer per acre, mixed with superphosphate 50 kg. After the harvest, we will plough deep into the fields and make a full preparation. The width will be 1.2 meters.

Third, nurture strong seedlings

The stems used mustard greens in the greenhouse, and they were raised in the autumn in the Huanghuai River Valley. They were harvested in early spring. The sowing date should not be too early. Although early sowing can extend the growth period, it is easy to infect the virus and cause convulsions; late sowing is not susceptible to virus, and it is not easy to convulsions, but the growth period is short, which affects the yield. It should be sown in early September. Spread the seed evenly on the seedbed, cover 1.5-2 cm of finely ground soil after sowing, cover the insect net with 25 mesh, and prevent diseases such as aphids. Use 0.4-0.5 kg per acre. Seed bed: Honda = 1:10-15. 2 true leaf time seedlings 1 time, 3-4 true leaf seedlings once again, remove bad seedlings, weak seedlings and diseased seedlings, keeping row spacing 6 cm. Seedling period appropriate watering, seedling robust growth.

Fourth, colonization

When the seedlings have 5-6 true leaves and the seedling age is 30-35 days, colonization is more appropriate. The age of the seedlings is too small to improve the land utilization rate; the colonization is too late, and the seedlings are crowded and easy to grow. Plant 4000-5000 plants per acre with a spacing of 40 cm and a spacing of 33-40 cm. In order to improve the processing quality of mustard, appropriate increase in density. When transplanting, planting holes, watering, placing seedlings, covering soil and the like are performed according to the line spacing. Size seedlings should be planted separately to facilitate balanced growth.

Fifth, fertilizer and water management

In terms of water management, we should always keep the soil moist. Under the premise of applying basal fertilizer, the top dressing is generally performed 3 times. For the first time after easing the seedlings and before the formation of the first leaf ring, a compound fertilizer (N, P, K content of 15%) 15-20 kg per acre was applied for the second time after the formation of the first leaf ring. Begin to expand, and gradually form the second three-leaf ring, at this time the growth rate of the stem is faster, chase ternary compound fertilizer 40-50 kg per mu. The third time in the period of growing stems, 20-25 kilograms of urea was applied per acre. After planting ridges in the middle and later stages, field activities should be minimized so as not to damage the leaves.

Six, temperature regulation

The optimal temperature for the growth of stem mustard leaves is about 15°C, and the optimum temperature for the stem inflated is 8-13.6°C. In this range, the higher the temperature, the faster the growth. Therefore, according to the growth conditions of plants, external temperature changes, timely (in late October) buckle sheds, and reasonable uncovering grasshoppers, especially in cold days, should pay attention to exposing, increase light, create suitable environment for the growth of stems and leaves, in order to improve quality, Increase production.

Seven, disease prevention and pest control

Diseases and insect pests mainly include viral diseases, soft rot, downy mildew, aphids, cabbage caterpillars, yellow striped hops, and vegetables. Virus disease is sterilized with 5% bacteria 300 times liquid, 1.5% plant disease spirit 500 times liquid, anti-virus abundance 400 times liquid, etc. The soft rot was treated with 50% sterilizing agent 1000-1500 times, 50% Feng'an Huo'an 500 times, 75% Kobo 500 times, and agricultural streptomycin 2000-300 times. Downy mildew is used 600-700 times for 72% Kelu, 70% for Baide Fu 500-700 times, 40% for Alpha-Phosphate 250-300 times, and 58% for DDE Mn-Zn 400 times. The aphids were sprayed with 10% imidacloprid 3000 times solution and 20% butylthiocarb 1500-2000 times solution. The cabbage caterpillar was treated with 5% Sodium Thiopropionate 1000 times, 5% Ruijinte 1500-2000 dilution and Bt preparation. The vegetable pods were sprayed or rooted with 50% killer pine 1000 times liquid, 2.5% day satellite 3000 times liquid, 10% chrysanthemum cream 1500-2000 times liquid, and 50% dichlorvos 1000-1500 times liquid.

Eight, harvest

Between spring and rain, when the head has fully inflated and has just appeared green buds, timely harvest. Premature harvesting has an impact on production; if it is too late, the water content is high, fiber is more, and it is hollow and the quality is reduced. General production per mu 4000-5000 kg, high yield of more than 7000 kg.

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