How to store vegetable seeds in winter?

1. Featured

Use a suitable type of round or long hole sieve to remove straw, silt, shattered grains and impurities; use a dustpan to remove peels, residual leaves and light-weight dried shredded seeds.

2. Drying

The newly harvested seeds need to be air-dried on sunny and windless days to keep the moisture content below the safe range. The natural drying method can be used for drying the seeds. The picked seeds are spread out on a curtain or mat to air, and turned over at regular intervals, which can speed up the evaporation of water and achieve safe storage of water.

3. Storage

Storage with pods or pruning. Bundle the harvested vegetable seeds and hang them in a cool and ventilated place. Picking and threshing when used; bag storage method, put the harvested vegetable seeds in kraft paper bags or cloth bags, and place them in a dry and ventilated place In the high-hanging storage method, the seeds are dried until they are completely dry, and then gauze is used to sew them into small cloth bags to hold them. They are hung under a ventilated and cool roof to prevent the seeds from being damp or deteriorated; in low temperature, dry, and vacuum It can be stored in a plastic paper bag with anti-corrosion coating or a pottery jar with better sealing. It can be filled with a small amount of quicklime, which can reduce the humidity and supply oxygen to the seeds.

4. Freeze before storage to prevent insects

Food pests generally stop moving when the ambient temperature is 4°C-8°C, and are in a cold paralysis (hibernation) state at 1°C-4°C, and may die if it is below -4°C. Choose a cold and dry sunny day, around 5 pm, spread the food on the ground every 12 hours. Pile up and cover the grain before frost at night to prevent re-moisture. Before sunrise the next day, take advantage of the cold to enter the warehouse, and then close the granary to keep the temperature low. The freezing time can be determined according to the death of the grain and the mild pests. Generally, the insecticidal effect is better when it is put into the warehouse after 23 consecutive days of freezing. You can also open the doors and windows of the warehouse on a cold sunny day to ventilate, while turning the surface of the grain, or use mechanical ventilation to accelerate the cooling. When the grain drops to close to the lowest temperature outside, flatten the surface of the grain, seal the doors and windows, keep the temperature low, freeze the pests or inhibit the activities of the pests.

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