A Case of Cyperus spp. and Imperata cylindrica Occurrences on Acrisol of the Dahomey Gap in South Benin as Affected by Soil Characteristics: A Strategy for Soil and Weed Management

Table 1

Mean values of soil particle sizes and nutrient contents (C, Nt, Pa, Pt, Mg, K, Ca, Na, and Fe) along the toposequence in topsoil (0–20 cm).

Sand (%)

Clay (%)

Silt (%)

C-org (%)

Nt (%)

Pa (ppm)

Pt (ppm)

Mg (cmol kg^−1)

Ca (cmol kg^−1)

K (cmol kg^−1)

Na (cmol kg^−1)

Fe (ppm)

SUM

82.0^b

12.5^ab

5.5^b

1.19^b

0.07^b

26.4^a

170.8^b

2.8^a

2.9^a

0.2^c

0.05^c

2800^a

US

81.0^b

14.0^a

5.0^c

1.19^b

0.06^c

12.8^b

126.0^c

2.5^b

2.6^b

0.1^d

0.10^c

1960^b

MS

85.0^a

11.0^b

4.0^c

1.09^b

0.05^d

8.0^b

117.0^c

2.0^c

2.1^c

0.3^b

0.21^b

1924^b

FS

74.0^c

14.0^a

11.5^a

1.71^a

0.08^a

25.2^a

241.0^a

2.0^c

1.9^d

0.4^a

0.55^a

1547^b

Pr > 𝐹

<0.0001

0.001

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001