Green bean sprouts are white and green leaves, delicate and pleasant, rich in protein, vitamins, can clear the fire Yishen, Li Hui fat reduction, promote metabolism, is a very good health food. The use of plastic greenhouses can produce green bean sprouts all year round, with the advantages of short growing period and timely market supply, opening up a road for poverty alleviation and prosperity for vegetable farmers. The key technologies for its production are: 1. Carriages are built in the north and south of the shed. The width of the car is about 1 meter, the width of the car is 0.2 meters, and the car depth is 6-7 cm. It is best to exaggerate the construction of the car. At the level, the length of the cab may vary depending on the length of the ground. 2, selection of the production of green bean sprouts should be good choice of mung bean, the seed coat is thin, fast germination, generally every kilogram of seeds can produce about 10 kilograms of green bean sprouts, and bean sprouts green color, stem white crisp, low fiber content, good taste, nutrition rich. Soybeans and black beans can also be produced. 3, soaking seed selection full and tidy, no mildew, no pests, seeds, 5 kg of dry seed water 15 kg soaking is appropriate, soak for 24 hours, stirring every 6-8 hours. Use cold water at high temperatures and warm water at low temperatures. 4, sowing first in the car covered with a layer of 3 cm thick fine soil, scraped flat, slightly practical, evenly sprinkled with just soaked seeds (about 3 kg per square meter species), immediately gently cover 2 cm thick sand, with a large hole fountain pot evenly spray water, spray 25-30 kilograms per square meter. 5. After the sand-blasting seeds are sown on the surface of the car to obtain sufficient moisture, suitable temperature, and sufficient oxygen, they will germinate quickly. First the radicle breaks through the outer seed coat into the soil, then the embryo elongates axially. When it lifts up the layer of fine yarn covering the seed, it can gently remove the sand layer above the seed. Then sprinkle 1 second of water (20 kilograms per square meter of water), regenerate the soil moisture in the compartment and wash away the residual sand on the watercress (cotyledons). Sanding time is 3-5 days in spring and autumn, 2 days in summer and 6-7 days in winter. Management must adjust the temperature, the best shelf temperature in the 15-20 degrees, higher than 30 degrees ventilation and cooling in time, when the temperature is low to increase the temperature and heat insulation, under the premise of ensuring the appropriate temperature under the roof, together Scattered light appears in the shed; Second, humidity must be adjusted to require 75-85% relative humidity in the shed. Under normal circumstances, insects do not occur during the production period, but poor management and proneness to diseases such as rot, rotten stems, resulting in reduced production. The disease is caused by infection or excessive humidity. Therefore, when the humidity is high, it is often required to ventilate and reduce the humidity. After the green bean sprouts are harvested, the soil should be cleaned in a timely manner, and the next time sowing, it should be sterilized and sterilized with plant ash or quicklime powder to create a healthy environmental condition for the production of the second batch of green bean sprouts. China Agricultural Network Editor
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