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2, the dry storage method will be peeled walnuts placed in a dry and ventilated place to dry until the diaphragm of the nut is broken, the seed coat and seed kernels are not easy to separate, the seed color uniform storage inside and outside. Place the walnuts in a sack and place in a ventilated, cool room. During storage to prevent rat damage, mildew and fever.
3, plastic film packaging storage method Walnut after bagging into a stack, at 0-1 °C under a large account with plastic film cover up, fill the account of carbon dioxide or nitrogen. At the beginning of storage, the inflation concentration should reach 50%. After that, the carbon dioxide should be kept at 20% and the oxygen should be kept at 2%. This will not only prevent the fat of the kernels from oxidizing and deteriorating, but also prevent the moulds and worms of the walnuts.
Walnut storage three methods
1. The wetland method is to ditch a trench that is 1 meter deep, 1 -1.5 meters wide, and the length is determined by the storage capacity in the terrain with high dryness, good drainage, and sheltering from the wind. The bottom of the ditch is covered with a layer of clean wet sand with a thickness of 10 cm. The humidity of the sand is crushed into a group with no water. Then spread a layer of walnut sand, filled with wet sand between the trench wall and the walnut. Spread to a depth of 20 cm from the trench, cover with wet sand and the ground level. The soil on the sand is ridge-shaped and its span is greater than the width of the ditch. Open ditch around the ditch. When the length of the ditch exceeds 2 meters, a tightly-knotted straw shall be used every 2 meters for venting when storing the walnuts, and the height of the grass shall be the degree of ridges. In winter, the soil on the roof of the cold area is thicker.