Watermelon is cheap when it is listed on a large scale, and it can be sold at a high price if it can be sold fresh and sold off-season. The storage and preservation technology of watermelon is introduced as follows: Select a variety suitable for preservation and storage. It is generally required to use thick, tough, late-maturing watermelon seed varieties. Pre-harvest spraying. About one week before the watermelon harvest, the rind leaves and the watermelon skin were uniformly sprayed with 70% thiophanate-methyl wettable powder 800-1000 times. Harvest in advance to prevent injury. Melon takes 70% to 80% when it is ripe to harvest, choose sunny sunny harvest. Each watermelon leaves 10 cm to 15 cm long shoots. The ends of the shoots are crushed with ash or slaked lime powder to eliminate germs and prevent infection. Be careful when picking, not only to prevent trauma but more importantly to prevent internal injuries. During picking and transport, prevent bumps, vibrations and squeezing to prevent rot. Disinfectant. After picking it back, after the dew is dry, soak the watermelon in 15% salt water for 3 minutes, then dry it, dry it with 0.5%-1% potassium sorbate, and seal it in a polyethylene plastic bag. . Put into the cellar or cold storage. Before entering the cellar, the cellar will be cleaned. Every cubic meter is fumigated with 10 grams of sulphur or sprayed with a 150-fold formalin solution. Closed for two days, the watermelon can enter the pit after ventilation. Strengthen inspections. The cellar should have “vital eyes†and skylights, be careful of ventilation and heat dissipation during storage, and the cellar temperature should be controlled between 5°C and 15°C, and relative humidity should be kept between 60% and 80%. Ventilation and cooling can be used in the cellar when nighttime temperatures are low. Check every 10 days to remove the watermelon that should not be stored.
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