Year: 2026 | Month: March | Volume: 13 | Issue: 3 | Pages: 261-269
DOI: https://doi.org/10.52403/ijrr.20260330
Comparative Effect of Mineral (NPK) and Organic (Poultry Manure) Fertilization on the Agronomic Parameters of Millet on an Arenosol in the Dakar Region
Bineta Guèye Fall1, Fary Diome Moumar Dieye2, Mohamadou Moustapha Thiam3
Ecole Nationale Supérieure des Mines et de la Géologie, Cheikh Anta Diop University of Dakar, BP 5396 Dakar-Fann Sénégal
Corresponding Author: Bineta Guèye Fall
ABSTRACT
This study was conducted to analyze the influence of an organic residual product (ORP) and an inorganic fertilizer on the growth parameters of millet, in the context of climate change and declining soil fertility in Senegal. A greenhouse experiment was conducted on a carbon-poor arenosol (A) to study the behavior of a high root exudation millet variety (M+) under the effect of poultry manure and NPK fertilizer. The experimental design consisted of a complete randomized block with 2 treatments (T1: NPK (AM+) and T2: poultry manure with urea and K2O supplements (AM+PM)) with 5 repetitions each, over 12 crop cycles of 45 days. Agronomic parameters (number of leaves NL, plant height PH, aerial biomass AB and root biomass RB) were measured at the end of each cycle. The results showed that fertilization with poultry manure (PM) did not significantly increase NL, PH, AB and RB compared to NPK fertilization. However, it showed an upward trend in the middle of the experiment through to the end. These results confirm the importance of PM in fertilizing carbon-poor soils. They also affirm that PM could be an alternative in the fight against soil degradation and constitutes an important element in animal waste recycling policies in agriculture.
Keywords: Poultry manure, growth, millet, recycling, waste, soil degradation
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