Research Article
Dry Matter Production, Nutrient Cycled and Removed, and Soil Fertility Changes in Yam-Based Cropping Systems with Herbaceous Legumes in the Guinea-Sudan Zone of Benin
Table 4
Initial soil characteristics at the beginning of the experiment at 0–10 and 10–20 cm layers in four village sites (Miniffi, Gomè, Gbanlin, and Akpéro) with 32 farmers, Benin.
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C%: soil carbon concentration; N%: soil nitrogen concentration; OM% (=1.72 × C%): soil organic matter content; C/N: index of biodegradability or ratio of soil carbon to nitrogen; Bray P (mg kg−1): soil phosphorus. |