How to preserve and store citrus

Every year before the Chinese New Year, it is the time when the citrus market is concentrated. Therefore, many fruit farmers will save the harvested citrus for sale before the end of the year. Therefore, it is very important to store and preserve the citrus. Once the citrus is stored Any mistakes in preservation will affect the storage, preservation and sales value of citrus. So how to store citrus and keep them fresh?

1. Harvesting

Storage and preservation Harvesting is the first step. Only scientific and reasonable harvesting can effectively improve the storage and preservation time of citrus. When harvesting citrus, you should pick according to the maturity of the fruit. The harvesting method is "one fruit and two cuts", that is, cut off the fruit stem together, then cut off the fruit stem, and be careful when placing it. Put it down gently, and eliminate fruits with damage, diseases and insect pests in time.

2. Commonly used storage methods

1. Private house storage method

That is, lay a layer of straw about 10cm thick on the floor planks of the building, and use 50 sulfur Dip the fruits with fungicides such as 500 to 1000 times of bendazim or 500mg/kg imazalil solution, take antiseptic measures, dry the fruits and pile them into a height of 25-30cm, and cover them with straw mats. Inspect once or twice from December to January of next year and eliminate rotten or damaged fruits in time. After February, inspect once every 10-15 days to eliminate rotten and rotten fruits in a timely manner.

2. Cellar storage method

The cellar storage method is a relatively common storage method. If the cellar is old, use 50% formaldehyde spray to disinfect it, and cover the bottom of the cellar with fine sand. Apply straw and stack 3-4 layers of fruits in a "pin" shape. When placing the fruits, the fruit bases should be facing up. Then seal the cellar entrance and inspect it every ten days to eliminate rotten fruits and rotten fruits in a timely manner.

3. Wood chip storage method

After drying the fresh and clean wood chips to 90% dryness, spread 5-6cm of wood chips at the bottom of the storage container, and then place a layer of citrus fruits , when placing the fruits, the stems should face upward, then cover with 3-4cm of sawdust, then place the fruits, and place them in eight layers in sequence. The editor of Huinong.com would like to remind you that when placing storage containers, they need to be placed on a shelf that is cool and ventilated and 20-30cm above the ground.

4. Pine needle storage

Choose a corner of the house that is ventilated, dry and cool, clean it, spread lime powder to disinfect, and use 500mg/kg carbendazim 200mg/ Soak and wash the fruits in kg 24-D solution for half a minute, and then put them in a ventilated place to dry for three or four days. Then spread a layer of 6-7cm thick pine needles on the ground, then place a layer of citrus fruits, covering them one layer at a time. Just stack 4-5 layers.

5. Packaging and storage method

It is more practical for larger fruit varieties such as red oranges. First, the harvested fruits should be soaked and washed with 250-500mg/kg carbendazim, 100-200mg/kg2, 4-D solution for 20-30 seconds, and then the fruits should be packed in bamboo baskets and other containers and placed Dry in a ventilated place for three to five days, and then package the single fruit in a 0.01mm thick polyethylene film preservation bag. The temperature in the storage room should be kept within 4-20 degrees, and the humidity should be between 80-85.

6. Potassium permanganate storage method

Soak the citrus harvested on the same day in 0.1 potassium permanganate solution for 5-6 minutes, and then place it in a ventilated place to dry. After storage.

7. Garlic storage method

Pour the mashed garlic head into hot water and soak it for 12 hours to filter out the garlic residue. Then put the citrus into the garlic liquid and soak it for 10 minutes. After the citrus is taken out and dried, it is stored in containers such as wooden boxes or cardboard boxes.

8. Plant ash storage method

Put a 5cm thick layer of plant ash on the bottom of boxes, jars and jars used to hold citrus, then place a layer of citrus fruits and cover it. Stack them layer by layer, and cover the last layer with 5cm of plant ash.

9. River sand storage method

Now the storage jar is covered with a layer of clean and fine wet river sand with a thickness of 2-3cm, and then placed a layer of citrus fruits and covered Stack them one layer at a time and cover the last layer with more sand to keep them fresh for more than three months.