The arrowhead is also called white chestnut. It is a genus of Zedangidae and Sagittaria, a perennial herb, and aquatic vegetables. Use underground bulbs for food. The northern region is harvested once before winter, and it is listed in batches after storage. From November to the second year of the year, the southern region can be excavated one after another to supply the winter and spring markets. Classified according to mature period: early maturing varieties are of high quality, such as Shagu produced in Guangzhou, Guangdong; middle-late-maturing varieties are produced in Suzhou Yellow, Suzhou, Jiangsu, with high resistance to hiding. Produced in Quzhou, Guangxi, Horseshoe is rich in starch and suitable for processing raw materials. Sagittarius is mainly based on fresh products.
(I) Harvesting requirements and storage characteristics After the frost has fallen, the stems and leaves of the plants have become yellow, and the bulbs are fully matured. It can also be stored in winter in the fields. The Sagittarius will enter the dormancy period after harvest and should maintain a low-temperature and high-humidity storage environment. For example, it can be stored in the 1-3°C condition for several months. After entering spring, the storage period can also be extended by controlling temperature and humidity and inhibiting the development of the terminal bud.
(B) Storage and transportation methods
1. After the mature stem borer matures in the field storage method, the stems and leaves are removed and stored in the field. Every three to five lines, dig a 30-cm wide ditch between the rows and cover the soil to both sides. Ditching facilitates drainage and prevents spoilage; spoil prevents frost. In the south, this method can be used to extract and market at any time.
2. The mud-mud method is used in indoor or open-air venues to build bricks into pools, and a layer of earthworms is placed in a layer of mud and covered with 10 cm of mud. Turn upside down before the Ching Ming Festival, and cut off the germinating top buds, then continue to mud under low temperature conditions. When using outdoor mud, pay attention to trench drainage.
3. Sand traps are buried outdoors with wet sand. Pay attention to frequent use of water spray can humidify. After the Spring Festival, if you take care to cut off the top buds, you can continue to store them.
4. The water-controlled storage method utilizes flowing water to cool, moisturize, and store indoor. Cover the grass pack and pour water every 4 to 5 days. When the temperature drops below 0°C, replace the hay bales above to cover the antifreeze.
5. The transportation and marketing method covers and linings the baskets, and requires padding and low-temperature transportation. Pay attention to frequent watering and moisturizing.
(3) Quality Standards for Listed Bulbs Zhou Zheng, hypertrophy, smooth skin, white flesh, no pests and diseases, no silt; plus lining grass baskets.
(I) Harvesting requirements and storage characteristics After the frost has fallen, the stems and leaves of the plants have become yellow, and the bulbs are fully matured. It can also be stored in winter in the fields. The Sagittarius will enter the dormancy period after harvest and should maintain a low-temperature and high-humidity storage environment. For example, it can be stored in the 1-3°C condition for several months. After entering spring, the storage period can also be extended by controlling temperature and humidity and inhibiting the development of the terminal bud.
(B) Storage and transportation methods
1. After the mature stem borer matures in the field storage method, the stems and leaves are removed and stored in the field. Every three to five lines, dig a 30-cm wide ditch between the rows and cover the soil to both sides. Ditching facilitates drainage and prevents spoilage; spoil prevents frost. In the south, this method can be used to extract and market at any time.
2. The mud-mud method is used in indoor or open-air venues to build bricks into pools, and a layer of earthworms is placed in a layer of mud and covered with 10 cm of mud. Turn upside down before the Ching Ming Festival, and cut off the germinating top buds, then continue to mud under low temperature conditions. When using outdoor mud, pay attention to trench drainage.
3. Sand traps are buried outdoors with wet sand. Pay attention to frequent use of water spray can humidify. After the Spring Festival, if you take care to cut off the top buds, you can continue to store them.
4. The water-controlled storage method utilizes flowing water to cool, moisturize, and store indoor. Cover the grass pack and pour water every 4 to 5 days. When the temperature drops below 0°C, replace the hay bales above to cover the antifreeze.
5. The transportation and marketing method covers and linings the baskets, and requires padding and low-temperature transportation. Pay attention to frequent watering and moisturizing.
(3) Quality Standards for Listed Bulbs Zhou Zheng, hypertrophy, smooth skin, white flesh, no pests and diseases, no silt; plus lining grass baskets.
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