Peanut is one of the main sources of income for many farmers. Currently, peanuts from multiple provinces enter the harvest season. Rainy weather will have an adverse effect on the harvest and drying of autumn peanuts, which will easily cause the deterioration of grain and mildew.
When the pod is firm and the seeds are full, the seed coat becomes pink when it is mature. It should be harvested in time. If it is harvested too late, the needle will be broken and germinated. After harvesting, the pod will be dried in time to a moisture content of less than 10%. Store in a dry, well-ventilated area and pay attention to rodent control.
The newly harvested peanuts generally have a water content of 45% to 50%, and the water content of the capsules is higher, up to 60%. If it is not dried in time, it is prone to mold, deterioration or freezing damage. In order to ensure safe storage and ensure the quality of peanuts, the peanut plants with pods should be planted in the field for 2 to 3 days after harvesting to promote post-ripening and air drying; then pick the fruit and spread the fruit. When the pods are bitten and bitten, the hand shakes, and the shells of the pods are easily peeled off, the water content is generally less than 10%, and can be stored in the warehouse.
Because peanut seeds contain a lot of hydrophilic substances such as protein and carbohydrates, it is easy to absorb the moisture in the air during storage, so that the respiration can be enhanced, the nutrients are consumed, and a large amount of heat can be released to raise the temperature of the seed pile. The seeds are heated and moldy. Deterioration, loss of growth ability. Practice has proved that when the temperature of the peanut storage place is around 9 °C and the water content of the seed is 11%, the bottom of the pile will be hot and the oil yield will decrease. When the water content of the seed is 13% and the temperature exceeds 17 °C, mold will begin to be produced. If it exceeds 20 °C, it will deteriorate. Even if the water content of the seed is below the safe storage moisture limit, it will be frozen in -25% cold. If the safe moisture limit is exceeded, the seed may be subject to freezing deterioration at -3 °C. Therefore, peanuts must be dry and ventilated during storage. If the water content of the seeds exceeds the safety limit or the temperature of the seed piles rises, they should be emptied and dried in time to ensure the safe storage of peanut seeds.
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