In late autumn, it's essential to prepare plastic greenhouses for storing a large quantity of cucumbers after the harvest season. Before and after the first frost, dig trenches in an east-west direction in shaded areas. The trenches should be 1.7 to 2 meters wide and 1.3 meters deep. Their length can vary depending on the number of cucumbers you plan to store. The soil excavated from the trench is used to build a wall with a height of 1 meter and a thickness ranging from 0.7 to 2 meters.
On the southern, northern, and western walls of the trench, install ventilation holes measuring 40 by 40 centimeters. The eastern wall should have a door for easy access. A wooden pole can be placed across the top of the trench, covered with 20 to 30 centimeters of corn stalks, followed by a 20-centimeter layer of soil. A ventilated skylight should also be installed at the top of the trench. If there is no natural shade, consider adding a shading structure on the southern side of the pit.
Inside the storage pit, set up brick or bamboo shelves along the walls, dividing the space into 3 to 4 levels. Place the cucumbers into the pits early in the morning and arrange them on the shelves. Ensure that each layer of cucumbers does not exceed 20 centimeters in thickness to prevent damage. During the day, keep the skylight open, while closing the ventilation holes and doors to maintain temperature control. After sunset, open the skylights, ventilation holes, and doors to allow air to circulate and cool down the environment.
Adjust the ventilation based on weather conditions—reduce ventilation time when it's cold and ensure proper airflow during the day, then close everything at night to enhance insulation. To prevent the cucumbers from wilting, spray them with fresh water once or twice daily. Throughout the storage period, inspect and turn over the cucumbers every 10 to 15 days, removing any that show signs of spoilage. With proper care, cucumbers can be stored for up to 30 days with excellent results.
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