Wuta vegetable is named for its growth in the collapsed land. Wuta vegetable is rich in vitamin C, carotene, calcium, phosphorus and iron. It is called vitamin vegetable. So how is Wuta Vegetable Cultivated? Please read with me with questions!
Breeding method of Wuta vegetable breeding method of Wuta vegetable (basic knowledge): best breeding time:
Cold areas in the North:
Direct seeding in the middle and late June (or seedling raising and transplanting in sunny border), harvest from the first ten days of August to the middle of August. Live broadcast in mid August, from late September to mid October.
North China: live broadcast from early May to early June, and harvest from late June to mid and late July. Sow from mid August and late September to early September, and harvest from early October to early November. Sowing and seedling raising in late September and transplanting in Yangqi in late October; Harvest at any time from December to February of the next year.
Yangtze River Basin: sowing and seedling raising in September, transplanting in October, and harvesting at any time from December to February of the next year.
The best growing soil: wutancai has strong adaptability to soil, but the slightly acidic clay loam rich in organic matter and strong water and fertility is the most suitable.
Growth humidity requirements: the temperature and humidity in the seedbed shall be adjusted according to the type of seedlings and different growth stages.
The best growth temperature: Wuta vegetable likes cold and is not resistant to high temperature. The suitable temperature for seed germination is 20-25 ℃, the suitable temperature for growth and reproduction is 15-20 ℃, and it can withstand low temperature of minus 8-10 ℃, and it will grow poorly at high temperature above 25 ℃.
Optimum growth light: Wuta vegetable has strong requirements for light, and it is easy to cause excessive growth, elongation of stem nodes and decline of quality in cloudy, rainy and weak light. Bolting and flowering are easy under the conditions of long sunshine and high temperature.
Cultivation method of Wuta vegetable precautions for cultivating Wuta vegetable: fertilizer application:
Wutancai has strong adaptability to soil, but the loam rich in organic matter, water and fertility is the most suitable, which is more resistant to acid soil. In the peak growth period, sufficient fertilizer and water are required, more nitrogen fertilizer is required, followed by potassium fertilizer and the least phosphorus fertilizer.
Strengthening topdressing management after planting is the key link to ensure high yield and high quality. After slowing down the seedlings, combined with watering, topdressing 500kg rotten human manure or 5 ~ 7kg urea per mu, and then topdressing once every two weeks, 1000kg human manure or 10 ~ 15kg urea per mu. Topdressing is required for 2 ~ 3 times in the whole growth period.
Key points of watering:
After planting, Wuta vegetable is watered with planting water immediately to promote slow seedling. Water more in seasons with high temperature and high evaporation, generally once every 5 ~ 7 days. The temperature drops gradually and the evaporation of soil decreases, so less watering can be appropriate. Water every time after fertilization. Watering shall be based on the principle of keeping the soil moist.
Breeding points:
The propagation of Wuta vegetable is mainly sowing.
Drill or broadcast. After sowing, cover the soil, slightly suppress, water and moisturize. Generally, seedlings can emerge in 2-3 days. The sowing amount is 11.25-15.0kg per hectare in autumn, and 22.5-37.5kg in spring and summer; The time of seedling emergence should be.
Breeding method of Wuta vegetable
Pest control:
The common diseases of Wuta vegetable include virus disease, downy mildew and soft rot, and the pests include aphids, cabbage worms and so on. The principle of pest control is "prevention first and comprehensive control". From the emergence of seedlings, fungicides and pesticides are used alternately every 7 ~ 10 days to achieve "no insects for pest control and no diseases for disease prevention".
a virus:
Under the conditions of continuous high temperature, drought and many aphids, the disease is serious and spreads quickly. Aphids should be prevented and controlled in time. In the early stage of disease, 500 times of 20% virus a wettable powder and 1000 times of 1.5% ZHIXIANLING emulsion should be sprayed once every 7 ~ 10 days, 2 ~ 3 times in a row.
Downy mildew:
The leaves first appear chlorotic spots, then brown to withered yellow, and then necrosis. The disease was treated with 72% grams of 600 times liquid, 58% metalaxyl zinc and 500 times liquid, 70% times mancozeb 500 times, 25% times of toxin.
Soft rot:
Timely eliminate pests, prevent biting plants, and avoid damaging plants during intercropping, so as to reduce the invasion of diseases from wounds. Pesticide control can be controlled by 72% agricultural streptomycin, new fungicidin or chloramphenicol 100 to 200mg/kg, spraying 60kg per acre.
aphid:
Clean up the weeds in and around the field, and spray 50% Pirimicarb wettable powder 2000 ~ 3000 times or 10% imidacloprid wettable powder 2000 times for chemical control.
Cabbage worm:
Avoid continuous cropping with cruciferous vegetables, clean up the countryside in time and reduce the source of insects. Biological control uses Bt emulsion 800~1000 times liquid spray control. Pesticide control can be used in 2.5% Kung Fu 3000 times liquid, or 90% thousand spirits 2000 times liquid, or 10% times annihilation emulsifiable oil 6000~8000 times spray control.
Expand knowledge on cultivation methods of Wuta vegetable - nutritional value of Wuta vegetable: Wuta vegetable has green and thick leaves, with an edible rate of 95% and high nutritional value. Every 100g of fresh vegetables contains 92g of water, 3G of protein, 0.8g of reducing sugar, 0.4g of fat, 2.6g of cellulose, 3mg of carotene, 382.6mg of potassium, 42.6mg of sodium, 180mg of calcium, 3.3mg of iron, 46.3mg of phosphorus, 0.111mg of copper, 0.319mg of manganese and 5% of selenium μ g. Strontium 1.03mg, 0.06mgvb1, 0.15mgvb2 and vc7.50mg《 "Wuta vegetable is sweet, flat and non-toxic," according to food materia medica It can "smooth the intestines, soothe the liver and benefit the five internal organs". Eating Wuta vegetables often can prevent constipation, enhance the ability of disease prevention and disease resistance, and moisturize the skin.