First, the trench method: scallion harvesting, drying in place for several hours, remove the roots of the soil, and remove diseased plants, injured strains, tied into bundles of about 10 kg, stacked in a well-ventilated place for about 6 days, so that onion appearance The moisture is completely dry. At the same time, choose to dig trenches in the shade ventilation, trench depth of about 33 centimeters, width of about 150 centimeters, the length of the reserves, 50 to 70 cm. If the bottom of the ditch has low humidity, it can be poured once. After all the water is permeated, the onions are bundled into a ditch by a bundle, so that the last bundle of leaves is covered on the top of the previous bundle, preferably 30 to 35 centimeters. The long corn stalks are inserted in a circle around it to facilitate ventilation and bury the light blue part of the soil. Before the arrival of the cold, cover it with a straw or straw and store it until March of next year. Second, the burial method: there is no place to dig, you can use this method. After the drying, picking, bundle of green onions on the shady corner or cool room, a corner of the floor or indoor ground covered with a layer of wet soil, around the onion with wet soil buried to the onion leaves. If buried outside, cold grass can be covered before the cold begins to prevent freezing. Third, the dry method: the timely harvest of green onions drying 2 to 3 days, knock down the roots of the soil, remove diseased plants, injured strains, wait until 70% dry, tie into 1 kg of onions to put a single layer on the dry Ventilation. Take precautions against heat and moisture during storage. Fourth, the shelf method: The dried, selected onion tied into a bundle of about 5 kg of onion, a single layer on the storage rack. If stacked, vents need to be left for ventilation and ventilation to prevent spoilage. V. Preservation Storage Method: Dig a shallow flat pit in the yard or in the ground. Remove the injured onion and diseased plants from the onions harvested, bundle them into small bundles, leave them in the pits, and bury the green onion roots and light blue parts with soil. Water with water. VI. Hollow trapping method: Put a shed in a place with high topography and flatness and convenient drainage, or use padding on open ground, and raise the ramming height by 30 to 40 centimeters. Turn the scallion roots that have been processed before storage outward. The leaves are arranged inward to form a hollow dome. In order to maintain stability without falling down, when each pole is 7 to 8 centimeters high, several bamboo poles can be placed horizontally and vertically. It has been raised to a height of 200-300 centimeters. The dome has been covered with a mat or straw to prevent rain. 7. Short-term preservation method: Dig a 20-cm deep flat-bottomed pit in a cool place and place 2 to 3 cm thick sand on the bottom of the pit. The pit is surrounded by bricks. The size of the pit depends on the reserves. When ready, pour 6 to 7 centimeters of deep water into the pool, wait until the water seeps and place the onions in the pool, and pour some water from the four corners of the pool every 3 to 4 days. This will preserve about 1 month.
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