Supplementation of Cattle with Rock Phosphate and Urea Treated Straw to Improve Manure Quality and Crop Yields in the Sahel Zone of Senegal

Supplementation of Cattle with Rock Phosphate and Urea Treated Straw to Improve Manure Quality and Crop Yields in the Sahel Zone of Senegal

Mineral deficiencies are a major constraint in improving animal production and crop yield in the Sahel zone (Cissé et al., 1996). Millet (Pennisetum glaucum) and groundnut (Arachis hypogaea,) are two major food and cash crops in this zone. The purpose of this study was to assess effects of supplementing grazing cattle with rock phosphate and nitrogen enriched diets on animal performances, and the effects of the application of their manure on crop yield in a pearl millet-groundnut rotational system located in N Senegal.