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 2

Pearson correlation coefficient values between soil characteristics and the dry matter of Cyperus and Imperata in their respective high density quadrate placement.

	𝑅
	Cyperus biomass	Imperata biomass
Clay	−0.31	−0.66^∗
Silt	−0.19	0.62*
Sand	0.22	−0.02
C	−0.34	0.39
N	−0.39	−0.08
Pa	0.55	0.48
Pt	−0.13	−0.13
Mg	−0.11	−0.60
K	0.06	0.73**
Ca	−0.36	−0.84**
Na	−0.29	0.54
Fe	0.03	−0.88**

∗significant at 10%; **significant at 1%.