Transportation and storage of sweet potato
Harvesting sweet potato has no obvious maturity period. It is determined that the harvest time should be sampled through the field, and 10 plants are continuously sown to measure the yield and commercial potato rate. When the commodity rate reaches 65%-70%, it can be harvested. The heart fragrance can be harvested 90 days (days) after planting, and the earliest harvest period is in late July. The harvest period can be determined by localities based on local climate characteristics and market needs. Finished before the frost is reached at the latest. It should be noted that sweet potato can not be harvested in rainy days, so as to avoid more soil on the potato block and affect the appearance of the product; it should be lightly dug, lightly loaded, lightly transported, and lightly unloaded during harvest to prevent the potato skin and potato block from being bruised and harvested separately according to the variety. Store. If the temperature reaches 32 °C during the harvest, the sweet potato should be delivered into the house within 2 hours (hours) to avoid burns on the epidermis and affect the appearance and storability.
Transportation, storage Use plastic containers to transport into the warehouse. Short-distance transportation should be protected from the sun and rain, and long-distance transportation should be protected from freezing or cooling. The optimal storage temperature of sweet potato is 10--15°C, relative humidity is 85%--90%, pay attention to prevent low temperature frostbite and reduce water evaporation, pay attention to ventilation and heat dissipation, prevent toxic and harmful substances from pollution, and prevent damage caused by extrusion. .
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