Agronomic Practice

Number of Response (n)

Frequency

(%)

Mean Aflatoxin Concentration (ppb)

Time of planting

April

May

June

6

16

2

25

66.7

8.3

17.3

13.7

2.4

Seed treatment

Yes

No

0

24

100

Variety Planted

Yellow

White

16

8

66.7

33.3

27.4

7.3

Source of planting materials

Previous harvest

Market

Agric center

12

4

8

50

16.7

33.3

2.5

42.4^**

11.9

Disposal of previous residues

Ploughed into soil

Gathered and burned

14

10

58.3

41.7

7.2

19.4

Maize intercropped with other crops

Yes

No

22

2

91.7

8.33

14.6

1.4

Fertilizer application

Yes

No

8

16

33.3

66.7

36.3^**

3.5

Weeding method

Manual

Chemical

24

0

100

0

Frequency of Weeding

Once

Twice

8

16

33.3

66.7

11.9

13.9