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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