Melon harvesting and storage preservation technology

Melon is an important economic crop that has been widely cultivated by farmers. If scientific and effective methods of harvesting and preservation are adopted, the economic benefits of growers can be significantly improved.

First, timely harvest

There are many kinds of melons and their maturity is not the same. Normal thin-skinned muskmelon early maturing varieties mature 22 to 25 days after pollination, mid-late-maturing varieties 35 to 40 days mature; thick-skinned muskmelon early maturing varieties mature 35 to 45 days, medium-maturing varieties 45 to 55 days mature, and late-maturing varieties 65 to 70 days mature.

Muskmelon's mature characteristics are: clear rind pattern, full display of the inherent color of its varieties, reticulate varieties are hardened reticulation; fruit handle Department hair off, beginning near the umbilicus soft; white gourd and other varieties produce off layer Guaty began to fall off naturally; it began to emit the unique flavor of the species; the fruit would be half-floating in the water.

In order to improve quality and resistance to storage and transportation, irrigation and fertilization should be stopped 4 to 5 days before picking. For melons that are sold and transported in short distances, melons that are ripe between nine and ten can be picked in the early morning; melons that are exported for long distances should be picked at 8 to 9 in the afternoon at 4 to 5 o'clock; melons used in winter can be picked from 8 to 9 Mature melon. When melons are harvested, they should be removed with a knife or scissors, leaving 2 to 3 cm long stalks. Picking must be done gently, and clean the surface of the rinsing water and dirt with paper or soft cotton cloth.

Second, storage and preservation technology

1. Thin-skinned melon. (1) Choose a cool and well-ventilated place and clean it, sprinkle lime powder on the ground and around it, then spread a layer of straw or wheat straw on the floor or shelf, and then gently place the melon covered with a foam net cover 3 to 4 Layers, which can be stored for 15 to 20 days. (2) Put the melons covered with foam nets into bamboo baskets or wicker baskets (do not fill up, leave some space at the top), and then stack the baskets in a cool, ventilated room and keep the room temperature at 16°C~18°C. Relative humidity of 80% to 85% can be stored for 20 to 25 days. (3) The melon covered with a foam mesh cover is placed in a ventilated carton and is pre-cooled and then cross-stacked in a refrigerator to maintain a temperature of 4°C to 5°C and a relative humidity of 80% to 85%. ~ 3 months.

The above three methods apply to the nearest, short-term sales.

2. Thick skin melon. (1) Antiseptic treatment. Immerse them in warm water of 55°C~60°C for 1 minute, then dip them with 0.2% calcium hypochlorite or 0.1% tedocadol, carbendazim and so on for 1 minute, dry them and put them on the foam net to store them. (2) Storage. Membrane storage method, that is, with 0.1% thiophanate dip melon 2 to 3 minutes, remove and dry and then dilute 4 times the No. 1 shellac garnish melon surface to form a semi-transparent film, after drying Into the box, placed in a temperature of 2 °C ~ 3 °C, relative humidity of 80% to 85% of the environment stored, can be stored for 3 to 4 months. Storage in cold storage, that is to say, melons that have been preserved and pre-cooled are packed in ventilated cartons, stacked in a cold store on the cross, early and medium-maturing varieties are kept at 5°C to 8°C, and late-maturing varieties are 3°C to 4°C. Cold storage relative humidity 85% to 90%, can be stored for 4 to 5 months. Cellar storage, choose the best late-maturing varieties. After the melons are pre-cooled, only one layer of melons is placed on each shelf. Afterwards, the melons are regularly rolled over to prevent the melons from rot with the wood. In the initial period of entering the cellar, all vents and doors and windows must be opened. When the temperature drops to 0°C, the cellar door and the vent hole are closed, and the cellar temperature is maintained at 2°C to 4°C and the relative humidity is 85% to 90%. This method can store melons from April to May of the following year.

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