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Table 6 Potato production, utilization and incomes, comparison between users and non-users of Kisima CSP

From: Productivity and food security effects of using of certified seed potato: the case of Kenya’s potato farmers

Variables Users (n = 167) Non-users (n = 241) Mean diff (t value)
Mean (SD) Mean (SD)
yield (kg/ha) 11,584.8 (6454.6) 8787.1 (5762.0) 6994.3*** (11.48)
ware_potatosale (kg) 19,352.0 (5188.2) 5337.3 (4596.2) 14,014.7*** (12.33)
seed_potatosale (kg) 155.5 (226.2) 115.4 (218.3) 40.10*** (4.50)
income_potato (kg) 1413.3 (776.9) 1054.8 (804.0) 10.21*** (4.49)
  1. Standard deviations (SD) and t values are in parentheses
  2. *, **, and *** significant at 10, 5, and 1%, respectively