Cabbage is a popular vegetable variety popular among the public, and it is also a backbone variety of vegetables everywhere. Cabbage has wide adaptability, strong resistance, high yield, storage and transportation, and rich nutrition. It plays an important role in the annual supply of vegetables. After years of trial screening, the early-maturing cabbage planting variety Wangwang has excellent performance and is suitable for large-scale application in the Yangtze River Basin.
1 characteristic characteristics
Early maturity, generally 55-60 days after planting can be harvested, suitable for spring and autumn cultivation. Plant height 27cm, plant width 69cm68cm, leaf ball longitudinal diameter 17cm, transverse diameter 15.5cm, leaf ball center column height 5.5cm, single ball mass 1.2-1.5kg. The leaves are spherical, the leaves are thick, the gloss is good, the folds are prominent, the leaves are bright green, and the balls are firm. The outer leaves are green, the leaf wax powder is medium, the root system is developed, it is resistant to barrenness, low temperature, long time in the cockroach, strong disease resistance and excellent commodity. The output per 667m2 is about 5000kg. 2 cultivation points
2.1 sowing seedlings
The spring species of the Yangtze River are planted in January-February and listed in May-June. Autumn seeds are generally planted in the middle and late August, and are available from November to February.
Soil bed seedlings or plug seedlings can be used. The soil bed should be selected from deep soil layers, rich in organic matter, strong in water retention and fertility, good irrigation and drainage, convenient transportation, and the best for non-cruciferous crops and few pests and diseases. When the soil is prepared, the organic fertilizer is 2,000kg per 667m2, and the whole is flat and the width is 1.0-1.2m. Pour the bottom of the water, soak the seeds evenly after the water has been infiltrated, then sprinkle a layer of fine soil to cover the seeds. After the emergence of the seedlings, remove the cover in time to prevent the lengthening. The seedbed is best built in a greenhouse, protected from rain and exposure. Keep the soil moist before emergence, and see dry after emergence. After the seedlings and time seedlings, seedlings.
The tray seedlings are made of 72-well seedling tray, and the substrate is prepared according to the volume ratio of peat:perlite=(2—3):1. 0.5% lion-horse compound fertilizer, 0.1% carbendazim is added, and the water is stirred evenly. Appropriate amount, the matrix should be hand-caught into a group, and the floor should be scattered. The mixed substrate is placed in a seedling tray, and one seed is seeded per well and covered with a thin substrate. After the seeds are finished, the seedling trays are placed neatly and covered with a film to moisturize. Generally, 2-3 days after sowing, the seeds are germinated and arched, pay attention to remove the film in time to prevent high temperature burning. During high temperature, the water evaporates quickly, and the water is replenished in time. 0.5% lion horse compound fertilizer or 0.3% urea solution is sprayed once every 3 to 4 times.
2.2 Soil preparation and fertilization
Plots should be selected for fertile soil, convenient irrigation and drainage, and convenient transportation. Depression is carried out 1-2 months before planting. Apply the base fertilizer before the preparation of the ground, and apply 75kg of compound fertilizer per 667m2. Deep ploughing and leveling, deep ditch narrow, 畦 width 1.1-1.2m, ditch depth 20-25cm, 畦 length 30-40m.
2.3 timely colonization
Generally, the seedling age is about 30 days (40-50 days of seedling age during low temperature period), and 5-6 true leaves can be colonized. Colonization should be carried out in cloudy or sunny days. Root water should be poured immediately after planting, and it must be rehydrated on the second day of the sunny day. The general species is 2 rows, the plant spacing is about 30cm, and the seedlings are 4000-5000 per 667m2.
2.4 Field Management
1 Reasonable fertilization Early-maturing varieties generally fertilize 2-3 times. After planting and living, lightly apply the seedling fertilizer, and apply about 5kg of urea per 667m2. Apply the second fertilizer at intervals of 10-15 days, and apply 7-10 kg of urea per 667 m2. It should be reapplied once in the early stage of the ball, and 15-20 kg of compound fertilizer per 667 m2. In places where calcium deficiency occurs, calcium fertilizer should be applied to prevent the occurrence of dried cabbage.
2 Scientific irrigation and planting should always keep the field moist after the survival, and watering irrigation according to the weather conditions, can not be flooded. In case of heavy rain or even rain, pay attention to clearing the ditch and preventing waterlogging in the field. Generally, the irrigation is stopped 1 week before harvesting to prevent the ball from cracking.
3 cultivating weeding in the pre-growth and medium-term cultivating weeding soil 2-3 times. The early stage cultivating should be deep, which is conducive to pine soil conservation and promote root growth. Later cultivating should be shallow to prevent root damage.
2.5 pest control
The main diseases are downy mildew, black spot, and black rot. Downy mildew is treated with nail cream, manganese zinc, pulic (a mildew) or chlorothalonil, once every 7-10 days, even twice. The early stage of black spot disease is controlled by chlorothalonil or chlorpyrifos (isobacteria), once every 7-10 days, and even sprayed 2-3 times. In the early stage of black rot, the use of lysine copper or copper (potassium hydroxide), agricultural streptomycin, prevention, 7-10 days, continuous spraying 2-3 times.
The main pests are jumping armor, diamondback moth, beet armyworm, cabbage caterpillar, and aphids. The jumper is controlled by a spray of lesbian (poison chlorpyrifos). Bt or cypress (flurididine) spray is used during the incubation period of the cabbage caterpillar eggs; Kung Fu (cyhalothrin), Uranus (bifenthrin) or phoxim spray can be used to control the older larvae. Plutella xylostella is sprayed with Regent (Fipronidin), Tica, avermectin or Bt at the age of 2nd instar larvae. The aphids are sprayed with smog or imidacloprid, once every 6-7 days, and continuously sprayed 2-3 times. Spodoptera exigua, sprayed with ectroscopy or agricultural land (chloridron chlorpyrifos) before the larva 3 years old. Medication in the evening on a sunny day, medication on cloudy days.
2.6 harvesting
Generally, the leaf ball is harvested in real time.
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