Six key points for preservation of wax gourd in kiln

The yield of wax gourd is high, and it is widely cultivated in our country. During the peak period of autumn harvest every year, the price often falls sharply. Storage and fresh-keeping is an important means to ensure the long-term supply of wax gourd and adjust the market surplus and shortage. Through the storage of wax gourd, the sales and supply period of wax gourd can be prolonged, and the off-season market can maintain and increase the value of wax gourd. There are a variety of storage methods, among which cellar storage is relatively simple and easy, and the storage time is longer. First, the suitable storage conditions. Wax gourd like temperature and heat resistance, is a cold-sensitive vegetable, suitable storage conditions: temperature of 10-15 ℃, relative humidity of 70-75%, and good ventilation. Wax gourd is stored at about 10-15 ℃ and can be preserved for several months. Wax gourd is not tolerant to low temperature storage and chilling injury often occurs when it is lower than 10 ℃. However, when the storage temperature is too high, the respiration rate is accelerated, the tissue is soon soft, the pathogen propagates rapidly, and the storage life is not long. Second, the preparation of storing melons. Wax gourd water content is high, tender melons and overmature melons are not suitable for storage, so stored wax gourd requires well-done, thick skin, thick meat, dense texture, good quality, bright green skin, covered with waxy varieties. Stored melons can not be hit by frost, during the growth period should be covered with bricks or hanging under the melon, and prevent sunlight exposure, irrigation is not allowed 1 week before harvest. Wax gourd should be strictly protected from rain before entering the warehouse. Leave 3-5 centimeters of melon seedlings when harvesting. Choose to cut with scissors in the morning when the weather is cool. In order to prevent mechanical injury and microbial infection caused by collision between melon and melon, wax gourd was wrapped in newspaper. In the process of handling, you should handle it gently, strictly prevent scratches and bruises, and pay special attention to the phenomenon of throwing and rolling, so as not to cause internal damage to wax gourd and cause great hidden danger to storage. Third, the preparation of storage kiln. The construction of the storage kiln is mostly semi-underground, that is, the height of the kiln is about 3.6 meters, 1.8 meters above and below the surface, and there are kiln windows on all sides, left and right, so as to facilitate ventilation and ventilation. The size of the storage kiln is determined by the quantity of wax gourd stored. The construction of this structure has the excellent characteristics of high constant temperature, cool, simple ventilation and easy control of dry and humidity. The wax gourd should be disinfected and sterilized 2-3 days before the wax gourd was put into storage. the method was to fumigate the kiln with potassium permanganate fumigation and reduce the temperature to 13 ℃. Then store the wax gourd that needs to be stored. Fourth, the display of wax gourd. Select the mature wax gourd that has been strictly selected, which are of the same size, neat and undamaged, and store them in the storehouse or on the rack, preferably in a single layer. The shelf storage of wax gourd is better than the heap because of good ventilation, but the shelf storage of wax gourd should also be covered with hay and other soft ventilation materials, and then put on the wax gourd. When taking stacking, the stored wax gourd should first put hay or straw curtain on the bottom of the bank, and then put the wax gourd on it, generally no more than 3 layers, so as to avoid crushing damage, and leave a channel for inspection when stacking. In the process of placement, it is advocated that how to grow wax gourd in the field and how to put it in the cellar, that is, it should be placed in the same state according to the state of wax gourd growing in the field, and must not be misplaced, because the pulp has adapted to the direction of gravity and the original direction of gravity is maintained during storage. the flesh is not easy to crack, and the storage time can be longer. Fifth, the management of storage. After 24 hours of storage of wax gourd, when the temperature of wax gourd dropped to about 13 ℃, fumigated with vegetable fresh-keeping fumigant, the dosage was 5 g / m3. After the antistaling agent is treated, the storage temperature should be set to 13-15 ℃. Relative humidity is about 70%. To prevent the storeroom from getting too wet, sprinkle a layer of lime powder on the ground. When wax gourd first enters the warehouse, attention should be paid to strengthening ventilation, which is not only beneficial to cooling and cooling, but also can eliminate moisture, reduce environmental humidity and maintain the dry state in the warehouse. As long as the temperature outside the reservoir does not exceed 15 ℃, it should be continuously ventilated. If the outside temperature is high, it should be ventilated only in the early morning and evening every day. When the temperature is lower than 10 ℃, we should pay attention to the heat preservation, and never make the reservoir temperature lower than 10 ℃. After 2 months of storage, the second antistaling agent (fruit and vegetable aerosol) should be treated, and the dosage is still 5g / m3, which can greatly enhance the antiseptic and fresh-keeping effect. Sixth, get rid of diseased melons. Attention should be paid to checking the cellar during storage, and the soft, moldy and rotten wax gourd should be detected out of the cellar at any time to prevent the spread of germs. At the same time, the wax gourd around the diseased wax gourd was detected and stored separately, and disinfected. Wax gourd storage period, as long as a good grasp of temperature and humidity environmental conditions, generally can be stored for 3-4 months or more.