Banlangen planting technology

I. Overview Banlangen is an alias for Daxie, Cymbidium, Indigo and Daqing. For cruciferous biennial herbs. The root medicine was called Radix Isatidis, and it was harvested only one year ago. The leaves were called Daqingye, and the roots and leaves were bitter and cold. It has the functions of clearing away heat, detoxifying, cooling and eliminating spots. Mainly produced in Hebei Anguo, Jiangsu Nantong. It is widely introduced and cultivated throughout the country. In Heilongjiang cultivation, it can be cultivated as an annual plant and generally cannot be overwintered. To get the seeds, collect them in the autumn in the vegetable pit. The second year will be planted with seeds.
The warm and humid climate, cold-tolerance, fear of embarrassment, easy to rot after water leaching, strict requirements on the soil, generally can be planted. The base fertilizer is resistant to continuous cropping. However, it is advisable to choose sandy loam with good drainage.
Second, cultivation technology
1. Soil preparation and fertilization: The deep-rooted plants of the Cymbidium family are selected for their deep, loose land. Each acre applies fertilizer 3000-4000 kg, Mushi diammonium 15 kilograms, 4 kilograms of biological potassium fertilizer, spread evenly deep in the ground more than 30CM, is conducive to the growth of the root straight and smooth not bifurcation. Then make a one-meter-wide rake for planting.
2, sowing: spring sowing in early April, summer sowing in late May. Drilling is better. Seeds soaked in 40-degree warm water for 4 hours before sowing and sown with straw ash. Then on the surface of the sorghum line spacing 20cm, open a shallow ditch 1.5cm deep, the seeds evenly sprinkled in the ditch, complex soil 1cm, a little repression, irrigation can be 7-10 days after the emergence of seedlings, such as seed germination rate of 70%, Use about 2.5 kg per mu.
3. Seed-reserving and seed-picking: The annual Daqingye leaves do not bloom, and can be harvested in the spring sowing year. When cutting the roots, pay attention to the choice of disease-free, pest-free, thick and robust rootless species. With a spacing of 4030 cm, transplant them into fertile ground for planting. Watering in time after planting and strengthening management. In winter, it is necessary to cultivate soil, fertilize and prevent cold. In April of the following year, the seedlings returned to green and watered the weeding and weeding. Do not apply excessive nitrogenous fertilizer, otherwise the stems will be long and thin, and they will be prone to fall down in case of rain and rain, which will prevent the seeds from maturing. Therefore, with the application of phosphorus and potash fertilizer, after the seeds mature, harvest dry threshing, placed in the wind dry storage.
Third, field management
1, weeding weeding: After sowing to keep the land moist, in order to facilitate the emergence of seedlings. After the seedlings are unearthed, they are shallow to prevent injury to the seedlings, and the soil is often kept loose and free of weeds.
2, seedlings Dingmiao seedlings: seedling height 7-8cm according to the spacing of 6-10cm Dingmiao, to leave the strong weak missing seedlings fill Qi.
3. Top-dressing watering: mainly for the harvest of green leaves, 3 times a year to recover fertilizer, the first time after planting, 10-15 kg of urea per acre, in the open shallow groove between the application, drought Watering in time. On the 2nd and 3rd time, fertilizers were topdressed immediately after the leaves had been harvested. Each time, circulatory fertilizers were applied and phosphorus and potassium fertilizers were appropriately used to grow plants. In order to harvest banlangen, the main growth period is not to cut leaves, less nitrogen fertilizer, appropriate fertilizer and plant ash, to promote root growth, high root production, roots and leaves when the intensive growth period, cut a leaf, autumn harvest root.
IV. Pest control
1. Downy mildew: damage to the leaves, leaves do not produce white or gray moldy material on the back, no obvious lesions when the leaves are yellow. Control methods: (1) Take agricultural comprehensive prevention and control drainage, summer flood prevention, ventilation and light transmission, and bury the diseased plants. 2 At the beginning of the onset, spray 65% ​​zeocin WP or chlorothalonil to control its spread.
2. Pieris rapae and aphids: Harmful to leaves, the leaves will be eaten into a net when severe, leaves become seedlings, curls, and plantlets are short, locusts are sprayed with 40% dimethoate emulsion 2000 times, and larvae are killed by enemies. Spray control. During the growing season, two phoxims were poured to prevent the mantle and cause rot.
Fifth, harvest processing such as closing the big leaves, water and fertilizer management after sowing up, one year can be harvested 2-3 times. When harvesting the leaves, choose sunny, immediately dried, green, and good quality. In case of rain, it should be dried, otherwise it must be moldy black, and reduce the quality. After drying, it can be used for medicinal purposes. When you take in Banlang, be careful not to plan the planing and injure the quality. Dry the roots of the planing back to 6-7% dry, remove the soil, tie it into small bundles, and dry it until it is completely dry. To thick and even, dry and tidy enough for those who are good enough, generally 300-500 kilograms of Ban Langen, about 200 kilograms of leaves.

Character:

Amaranth Seeds

Amaranth Seeds,Red Amaranth Seeds,Low Temperature Resistant Amaranth Seeds

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