Fruits are necessities for human survival. Keeping fruits fresh and then storing them can avoid the occurrence of low-priced fruits concentrated on the market, extend the time on the market for fruits, meet the needs of consumers after New Year's Day and the Spring Festival, and increase prices. It is a good way for fruit farmers to make money. In order to keep the fruit from rotting when sold, keep the skin fresh and wrinkle-free and have a unique sweetness, a series of measures are taken during harvesting.

1. Fruit harvesting. Do not pour a lot of water within 15 days before picking the fruit. Fruit trees can only be picked at least 7 days after heavy rain to prevent the fruit from containing too much water and not being able to withstand storage or rotting. Do not pick the fruit on rainy days, and do not pick the fruit until the foggy water has dried. You should choose Pick fruits on sunny or cloudy days. When harvesting Shatian pomelo, you should do "one fruit and two cuts". First, use fruit scissors to cut off the fruit and fruit branches, then cut the fruit shoulders flat, hold the bottom of the fruit with your left hand, hold the scissors with your right hand to cut, and put the fruit gently into the basket. , when picking fruits, do not pull the fruits hard, and do not throw the fruits downward into the basket from a high place to prevent damage to the fruits and avoid wounds that may lead to the invasion of pathogens and rotten fruits during the storage period.

2. Fruit preservation. After harvesting, the fruits should be transported to the house or warehouse immediately. Do not expose them to rain or sun. When stacking the fruits, the height should not exceed 1 meter to prevent deformation or internal damage of the fruits.

3. Edible fruit preservatives

A British company has produced a fruit preservative, which is a semi-preservative made of sucrose, starch, fatty acids and polyester. The transparent emulsion can be sprayed, painted or dipped to cover the surface of fruits such as apples, citrus, watermelons, bananas and tomatoes, and can be kept fresh for more than 200 days. Since this preservative forms a sealing film on the surface of the fruit, it can prevent oxygen from entering the inside of the fruit, thereby prolonging the ripening process of the fruit and preserving its freshness. This preservative can be eaten together with the fruit.

4. Dilute Zhuhai True Green Citrus Preservative 600-1000 times, add 1g of 2,4-D and wash the fruit for 1-2 minutes. The advantage of using this method to preserve freshness is that the storage time is as long as 4-6 months, the peel is bright and the color is bright, which can prevent dehydration, prevent the fruit from turning black, and prevent the invasion of microorganisms.

5. Soak in 15-20 liquids of Jing 2-B plastic wrap agent for 30 seconds, take it out and let it dry, then put it into a special plastic bag, which can be stored at room temperature for 4-6 months.

6. 70% imported thiophanate methyl or carbendazim (4 kg of water per 4-6 g) plus 1 g of 2,4-D powder to wash the fruits, then spread them to dry immediately Pack single fruits in special fresh-keeping bags and put them into storage.

After storage, you should always check whether the house is leaking and whether there are rat bites. If you find any rot, you should pick it out immediately. When the temperature in the room is too high, you should open the windows for ventilation, and if the temperature is too low, close the windows and doors. . Do not allow the fruit to come into contact with alcohol between harvest and shelf life, and do not store alcohol in the warehouse, as the fruit will rot in large quantities if exposed to alcohol.