In order to avoid potato rot after cutting, it should be cut 2-3 days before sowing after germination. Cuts are not only conducive to early emergence of potatoes, but also save seed potatoes.
Cutting method: Seed potatoes weighing 50 grams or less can be sowed with whole potatoes. Weight of 50 grams --- 100 grams of seed potatoes, should be vertical in all two; 100-150 grams of seed potatoes, with oblique cuts Method, the seed potatoes cut into four valves; weight of more than 150 grams of seed potatoes, depending on the number of buds from the tail, according to bud eyes along the oblique direction of the seed potato oblique cut into a number of three-dimensional triangle. Care should be taken when cutting, the British make full use of the apical dominance, so that the potato block with the top bud as far as possible in the place near the bud eye knife, in order to facilitate the germination; pay attention to make the wound as small as possible; do not cut the seed potato into a sheet or wedge. Potato block size is generally a single block weight 35 --- 40 grams is appropriate.
After cutting, plant seeds with plant ash to prevent rot. Mix 2 kg of ash per 50 kilograms of tuber and sow seeds after one day.
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