How does Banlangen planting achieve high yield? High quality and high yield cultivation technique of Banlangen
The roots and leaves of Radix Isatidis can be used as medicine, which has the effect of clearing away heat and detoxifying. Banlangen has strong adaptability, is warm and cold-tolerant, and is grown in most parts of China. The high-yield cultivation techniques of Banlangen in Longwangmiao Village, Wugongtai Town, Hutubi County are introduced as follows:
First, soil preparation and fertilization
Banlangen is a deep-rooted crop, and it is advisable to choose a sandy loam with deep, loose and fertile soil. The former carp is suitable for grass crops and avoids continuous cropping with cruciferous crops. Generally, 2 to 3 tons of rotted farmyard manure and 30 kilograms of compound fertilizer are used as base fertilizer per 667 m2, and the large horsepower tractor is turned over 30 cm deep, and the flattening is finely to be broadcasted.
Second, the seeding method
Hutubi County is generally sown from mid-April to early May. The germination rate of Radix isatidis seeds is above 80%, the purity is above 95%, and the moisture is below 9%. Soak seeds in warm water of 30~40 °C for 4 hours before sowing, remove and dry, and mix with fine sand to increase the germination rate of seeds. Choose a width of 1.25 m mulch film, 1 film 6 lines, or choose a width of 1.45 m mulch film, 1 film 8 lines, mechanical film on-demand, average line spacing 25 cm, plant spacing 10 cm, laying drip irrigation belt, 1 membrane 2 tubes. 2~3 capsules per hole, 1.5~2.0 kg per 667 m2. Generally, it can be emerged 7 to 10 days after sowing.
Third, field management
1. Miao Miao, Ding Miao
Seedling height 5 ~ 8 cm time seedlings, go weak and stay strong; seedling height 10 ~ 12 cm when the seedlings, 1 hole 1 strain, the lack of seedlings can stay double seedlings.
2. cultivating and weeding
After the first seedling in Miaoqi, the grass was weeded once every half month, keeping the soil surface loose and no weeds in the field. After the closure, the cultivator was stopped and the grass was manually removed.
3. Drip and top dressing
Application of high-efficiency drip irrigation technology, dripping 6~8 times throughout the growth period. In the case of sowing of the foot, the seedling period may not drip. If the bottom sputum is insufficient, the plant growth will drip after the seedlings are fixed. Generally, every 10~15 drops of water once, the interval of dripping in the high temperature period in July can be shortened appropriately, every time 667 meters 2 drops 25~30 meters 3, and water is stopped on September 10. After the first top dressing, after the seedling is fixed, it can be combined with the dripper water to apply urea 8~15 kg per 667 m2. The plants with sufficient water and fertilizer are flourishing. In the beginning of August and early September, the leaves can be harvested twice. After each leaf picking, the fertilizer is applied in time. The calcium phosphate is 8~15 kg and the ammonium sulfate is 5~8 with water 667 m2. kilogram. In order to ensure the late growth of the roots, the roots can be topdressed in mid-September. Each 667 m2 uses 500 g of urea and 100 g of potassium dihydrogen phosphate, and sprays 30 kg of water.
Fourth, pest control
The main pests and diseases that damage the growth of Radix is ​​root disease, downy mildew, root rot, cabbage butterfly (also known as cabbage caterpillar), diamondback moth, aphid and so on. In accordance with the principle of "prevention first, comprehensive prevention and control", effective measures are taken to prevent and control.
Agricultural control
Use disease-free and mold-free seeds; reasonable rotation, can be rotated with grass crops, avoid continuous cropping with cruciferous crops; rational close planting, improve ventilation and light transmission conditions; reduce field humidity, avoid high temperature and high humidity of the plot; Winter irrigation, clean up the residual branches of the diseased branches and reduce the source of overwintering insects.
2. Physical control
In combination with green prevention and control, insects, sex attractants, insecticidal lamps, etc. are hanged in the field to trap pests to reduce the use of pesticides and promote safe production.
3. Chemical control
In the early stage of downy mildew, it can be sprayed with 1:1:100 times Bordeaux mixture or 65% mancozeb 500 times. In the early stage of root rot, use 50% carbendazim 1000 times solution, or 70% methyl thiophanate 1000 times solution, and remove the diseased plants. When the cabbage butterfly and the diamondback moth are harmful, they are sprayed with 90% trichlorfon 800 times or with 0.6% matrine plant insecticide 1 000 times. The aphid hazard was found to be sprayed with 10% imidacloprid 1 000 times solution, sprayed once every 7 to 10 days, and sprayed 2 to 3 times.
V. Harvesting
Banlangen
In October and mid-October, depending on the weather conditions, the machinery will be excavated, and the net soil will be dried to 70% or 80%, and then tied into a small bundle, and then dried to the whole dry. It is better to have a thick and even root and a powdery foot.
2. Daqingye
Less harvesting of leaves can increase the harvest of roots. Generally, the leaves are harvested three times a year. The first time is in early August, the second time is in early September, and the tops are harvested in time after harvesting. The third time is harvested before excavation in mid-October. Choose the sunny day to harvest the leaves, the knife edge is 2 cm from the ground to facilitate re-leaching. After the leaves are cut, they are mixed and dried immediately.
The above is the full content of Banlangen high-yield cultivation technology, welcome farmers who want to plant Banlangen to come to Huinong.com!
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