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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