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An experiment was conducted at the research field in Gazipur, Bangladesh during winter season of 2014-2015 to determine the effect of different potash fertilizer rates as pre-harvest application viz. K 1 (0 kg-K 2 O/ha), K 2 (150 kg-K 2 O/ha), K 3 (175 kg-K 2 O/ha) and K 4 (200 kg-K 2 O/ha) on storability of different potato varieties (V 1 = Cardinal, V 2 =Courage, V 3 =Diamant, V 4 =Granola) under natural condition. The potato tubers were stored in a well ventilated room of day and night temperature of (25-30°C) and (20-25°C), respectively. Result revealed that after 135 days of storage, lowest cumulative weight loss was recorded in Granola (12.66%) followed by Courage (21.50%), Diamant (30.84%) and Cardinal (30.84%). The cumulative weight loss was minimum (10.66%) in Granola variety after 135 days of natural storage where the pre-harvest potassium application rate was @ 200 kg-K 2 O/ha.
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Alam et al. (2019) studied this question.
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