How long can wheat seeds be stored? There are storage precautions.

Wheat seeds can be stored for 3-5 years at normal temperature and 5-8 years at low temperature (65438 05℃). After the wheat is

How long can wheat seeds be stored? There are storage precautions.

Wheat seeds can be stored for 3-5 years at normal temperature and 5-8 years at low temperature (65438 05℃). After the wheat is harvested, it is exposed to the sun at high temperature in summer, and the moisture content of the wheat is controlled below 12.5%, and then it is put into storage. High temperature sealed storage has the function of killing insects and sterilizing at high temperature, and can promote the ripening of newly harvested wheat. You can use the low temperature in winter to turn over the warehouse. Ma? Wenn was cooled to 0℃ and sealed when it was cooled.

1. How long can wheat seeds last?

1, storage time of wheat seeds

Generally, wheat seeds can be stored for 3-5 years at room temperature and 5-8 years at low temperature (65438 05℃), and their edible quality has not changed significantly.

2. Storage methods of wheat seeds

(1) Strictly control moisture.

Because of the strong hygroscopicity of wheat, attention should be paid to precipitation and moisture prevention in wheat storage. After wheat harvest, it should be exposed to the sun at high temperature in summer to control the moisture content of wheat below 12.5%, and then put into storage. Moisture-proof measures should be taken after wheat storage, and attention should be paid to the phenomenon of moisture stratification and topping in the upper layer that may be caused during the after-ripening process.

(2) high-temperature sealed storage

Sunlight exposure can reduce the moisture content of wheat, and sealed storage at high temperature can kill insects and kill bacteria at high temperature, which can promote the ripening of newly harvested wheat and make it safe for a long time.

(3) low-temperature sealed storage

Wheat can be fully cooled by natural ventilation or mechanical ventilation after autumn cooling, and sealed with gland before spring warming to keep the low temperature.

(4) low-temperature freezing

When the temperature is low in winter, the Ma? Wenn can be reduced to about 0℃ by turning over the warehouse, removing impurities and freezing, and then sealed while it is hot, which has a good effect on eliminating overwintering pests in wheat piles.

Second, matters needing attention in wheat seed storage

1. In order to master the dormancy characteristics of wheat seeds, the seeds that have not passed the dormancy period generally have strong heat resistance. At this time, hot storage can be used, and the water content of hot storage wheat should be controlled within the range of10.5%-11.5%.

2. Keep the seed temperature above 44-47℃ for about 7- 10 days during heat treatment. However, the high temperature treatment time should not be too long, and the temperature should be reduced in time after heating, which will not affect the seed viability, but also achieve the effect of insecticidal.

3. Temperature is the main factor affecting seed metabolism, and stored wheat seeds should not be overexposed. You can't dry seeds on the cement floor, because the temperature of the cement floor is too high, which is easy to burn seeds. The temperature of the warehouse where wheat seeds are stored should also be kept below 20℃ as far as possible.

4. Wheat seeds should be stored in a dry and ventilated place, and the bottom of the container for storing wheat seeds should be covered with moisture-proof materials such as boards and stones. In the process of storage, it should be often aired and ventilated in time.