Abstract
Cowpea (Vigna unguiculata L. Walp.) is an important leguminous crop largely grown by smallholder farmers in Niger for food security. Field trials were carried out during the 2019 rainy season in Dangali and Dan Bouzou, villages of Mayahi, department of Maradi region, Niger Republic, to determine the effect of organic manure on cowpea productivity using the […]
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