Purple Red Taro High-efficiency Cultivation Technique in Sunlight Greenhouse
Propylene Glycol,Propylene Glycol For Medicine,Propylene Glycol Usp,Propylene Glycol For Personal Care Tianjin Shining Deal Co., Ltd , https://www.eramedicals.com
First, the setting of solar greenhouses Sunlight greenhouse temperature supplement in winter can increase the soil and indoor temperature, to meet the requirements of the accumulation of toon temperature, promote axillary bud germination early. The solar greenhouse is 30 to 50m in length from east to west, 10m in width from south to north, 0.5m in height from the south wall, 1.5m from the north wall, and 2m from the northern wall. The ridge height is 2.5m. The materials are bricks, bamboo rafts, cement pillars, plastic films, and haystacks. The wall thickness is 60cm. The inside and outside are wiped to prevent air penetration. The bamboo rafts are arched, covering the plastic film, and then covered with grasshoppers.
Second, cultivation methods, density 250,000 ~ 3000kg per 667 square meters of applied fertilizer, deep-turn 30cm, leveling the land, north and south ditch planting. Use 1 to 2 years of life to cut strong seedlings and plant 4,500 plants per 667 square meters. The plants are arranged in rows and rows, with a small row spacing of 30cm, a large row spacing of 50cm, a spacing of 30cm, good ventilation and light transmission, and easy management. Immediately after planting, irrigating the water, when the topsoil is dry, loosen soil promptly to promote seedling growth.
Third, the winter management buckle film heating, when the buds and leaves into the dormant period that the temperature dropped to 15 °C, the greenhouse covering the agricultural film, covered with straw. It is best to use a stunted seedling with a height of 1m or less. The soil moisture should be suitable, the humidity is too high, the temperature does not go up, and germination is delayed. After the film is covered, the room temperature can reach 32°C. After a month's natural accumulated temperature, when the temperature drops to 5°C, the furnace heats up, and the heating or home-style small chimney furnace is used for heating. Keep it above 15°C during the day and above 8°C at night. Clearing the grasshoppers from 9 to 16 in sunny days, removing dew and increasing light, it takes about 36 to 40 days from warming to bud opening. Harvesting bud management, germination opening, generally should be controlled at 18 ~ 25 °C, low temperature, slow growth of buds, delayed picking time, generally to be fragrant taro grow to more than 20cm can be picked. The number of shoots taken is generally 1 week, 3 to 5 times, 3 times in total. In order to make 2-3 shoots more shoots, when the first several shoots should be taken, care should be taken to increase the assimilation ability of the leaves. The temperature rises, generally in the late April, the film is removed, after the film is uncovered, the weight is shortened, the height of the rod can be controlled at 20-25cm, and the urea 12kg per 667m2 can be combined with watering. Dwarf close planting garden management.
Fourth, dwarf close planting garden cultivation for the cultivation of strong seedlings, topdressing urea in the early spring and late summer, a dose of 12.kg per 667 square meters. In summer, the seedlings grow vigorously. In order to promote dwarfing and cultivate long plants, we should timely cultivating and weeding, pay attention to water control and drainage, and timely picking up the hearts. At the beginning of May, when the bud grows to about 30cm, the first topping is performed, and the length of clipping is 15 to 20cm (that is, topping at 7 to 8 leaves). After that, leaves 2 to 3 leaves topping at the beginning of June and the middle of July, respectively. The number of cultivatable branches is from 2 to 8, up to a maximum of 10. The total number of heads per 667 square meters is 7,000 to 30,000. The number of heads of 1-year-old seedlings with root diameters of 1 to 1.5 cm increased from 0.3-1.5 cm. At the beginning of September, a second application of fertilizer was applied. Fertilizer was applied at a rate of 3,000 kg per 667 square meters and urea was adjusted to 10 kg. In late autumn, branches have become capped, and stimulating re-emergence is the key to shoot picking.
The main methods are:
(1) Remove leaves with terminal buds; (2) cut off leaves; (3) cut short; (4) remove leaves to the top bud; (5) transplant.