Fresh-keeping and preserving method of sweet potatoes by using double-film hot bed
A kind of red stalk and hotbed technology, applied in the field of agricultural product storage, can solve problems such as affecting farmers' enthusiasm for planting, and achieve the effect of solving the employment problem of surplus labor, increasing output value and increasing output
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Embodiment 1
[0046] (1) Select the cellar bed: choose a sloping field with a leeward facing sun, good drainage, and a slope of 10 degrees, and the soil quality is clay;
[0047] (2) Preparation of the cellar bed: dig a width of 1.0m and a length of no more than 15m, and then dig side ditches around the cellar pool. Leave ridges with a distance of 10cm. On sunny days, dig 15cm deep cellar bed topsoil in the bed and place them on the surrounding ridges to a height of 10cm. The soil with the side ditch is selected to be stacked in a concentrated place as the heat preservation soil for covering the sweet potato, and the heat preservation soil is aired for one day and then covered with a plastic film for later use, while the cellar bed is dried until the topsoil turns white;
[0048] (3) Cellar storage: pick the selected red sweet potatoes to the side of the cellar bed on a sunny afternoon and gently stack the red sweet potatoes in two layers in the cellar bed. The stacking thickness of red swe...
Embodiment 2
[0053] (1) Select the cellar bed: choose a leeward sunny, well-drained, slope land with a slope of 30 degrees, and the soil quality is brown purple soil;
[0054] (2) Preparation of the cellar bed and disinfectant: digging width 1.33m, length no more than 15m, digging side ditches around the cellar pool, the side ditch is 30cm wide x 30cm deep, the side ditch is connected around and leads out of the cellar bed Drain the water from the outside, and leave a ridge with a distance of 10cm between the side ditch and the cellar bed. On sunny days, dig 15cm deep cellar bed topsoil in the bed and place it on the surrounding ridges to a height of 15cm. The depth of the soil reaches 20cm, and the excess soil and the soil left to dig side ditches are piled up in a centralized place as the heat preservation soil for covering the sweet potato. After drying the heat preservation soil for one day, cover it with a plastic film for later use. White; prepare 70% thiophanate-methyl wettable powd...
Embodiment 3
[0062] (1) Select the cellar bed: choose a sloping land with a leeward facing sun, good drainage, and a slope of 20 degrees, and the soil quality is yellow soil;
[0063] (2) Preparation of the cellar bed: dig a width of 1.2m and a length of no more than 15m, and then dig a side ditch around the cellar pool. The side ditch is 30cm wide and 20cm deep. Discharge, leave a ridge with a distance of 10cm between the side ditch and the cellar bed, dig 15cm deep cellar bed topsoil in the bed on sunny days, put it on the surrounding ridges and stack it 12cm high, the ridges are solid, so that the depth of the final cellar pool reaches 18cm, the excess soil and the soil left to dig side ditches are selected to be piled up in a centralized place as the heat preservation soil for covering the sweet potato, and the heat preservation soil is aired for one day and then covered with a plastic film for later use, and the cellar bed is dried until the topsoil turns white;
[0064] Prepare the c...
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