[ Effets des amendements de résidus ligneux de Piliostigma reticulatum (D.C.) Hocht sur la biomasse adventice, les performances agronomiques du sorgho et la qualité résiduelle du sol en contexte semi-aride ]
Daouda Guebre1, Safiatou Sanna2, Gouwidida Elice Kabore3, Aminata Tandyande4, and Edmond Hien5
1 Centre Universitaire de Ziniaré, Université Joseph KI-ZERBO, 03 BP 7021, Ouagadougou, Burkina Faso
2 Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
3 Centre Universitaire de Ziniaré, Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
4 Direction régionale de l’agriculture des ressources animales et halieutiques du Centre-Ouest, Koudougou, Burkina Faso
5 Unité de formation et de recherche en sciences de la vie et de la terre, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou, Burkina Faso
Original language: French
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Woody amendments based on Fragmented Ramial Wood (FRW) could constitute a viable alternative in order to alleviate soil fertility problems. Our study aims to assess the influence of FRW from Piliostigma reticulatum (D.C.) Hochst on the dynamics of weed biomass and the agronomic performance of sorghum and residual soil quality in a Sudano-Sahelian context. The study was located in central Burkina Faso. The experimental design was organised into 4 completely randomised Fisher blocks with eight (8) treatments each: Absolute Control (AC), Manure (M), Combined Crops (CC), Urea (N), FRW used alone (FRW), FRW+Manure (FRW+M), FRW+Combined Crops (FRW+CC), FRW+Urea (FRW+N). The results showed that the FRW+F treatments were significantly the most competitive in terms of improving moisture content (+32.62%), infiltration (+49.73%), soil density (+8.29%), pH (+11.29%), soil macrofaunal density (+91.75%), and soil carbon, nitrogen and phosphorus content. Sorghum growth was greater under F treatments (+84.93%). Furthermore, weed biomass was lower on plots with FRW than on plots without FRW, with the exception of the FRW+N treatment. Weed biomass remains negatively correlated with carbon and nitrogen content and plant growth (under F). This practice deserves to be optimised for sustainable soil conservation in the Sudano-Sahelian context.
Author Keywords: woody amendments, weed biomass, nitrogen sources, sorghum, sudano-sahelian.
Daouda Guebre1, Safiatou Sanna2, Gouwidida Elice Kabore3, Aminata Tandyande4, and Edmond Hien5
1 Centre Universitaire de Ziniaré, Université Joseph KI-ZERBO, 03 BP 7021, Ouagadougou, Burkina Faso
2 Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
3 Centre Universitaire de Ziniaré, Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
4 Direction régionale de l’agriculture des ressources animales et halieutiques du Centre-Ouest, Koudougou, Burkina Faso
5 Unité de formation et de recherche en sciences de la vie et de la terre, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou, Burkina Faso
Original language: French
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Woody amendments based on Fragmented Ramial Wood (FRW) could constitute a viable alternative in order to alleviate soil fertility problems. Our study aims to assess the influence of FRW from Piliostigma reticulatum (D.C.) Hochst on the dynamics of weed biomass and the agronomic performance of sorghum and residual soil quality in a Sudano-Sahelian context. The study was located in central Burkina Faso. The experimental design was organised into 4 completely randomised Fisher blocks with eight (8) treatments each: Absolute Control (AC), Manure (M), Combined Crops (CC), Urea (N), FRW used alone (FRW), FRW+Manure (FRW+M), FRW+Combined Crops (FRW+CC), FRW+Urea (FRW+N). The results showed that the FRW+F treatments were significantly the most competitive in terms of improving moisture content (+32.62%), infiltration (+49.73%), soil density (+8.29%), pH (+11.29%), soil macrofaunal density (+91.75%), and soil carbon, nitrogen and phosphorus content. Sorghum growth was greater under F treatments (+84.93%). Furthermore, weed biomass was lower on plots with FRW than on plots without FRW, with the exception of the FRW+N treatment. Weed biomass remains negatively correlated with carbon and nitrogen content and plant growth (under F). This practice deserves to be optimised for sustainable soil conservation in the Sudano-Sahelian context.
Author Keywords: woody amendments, weed biomass, nitrogen sources, sorghum, sudano-sahelian.
Abstract: (french)
Les amendements ligneux à base des Bois et Raméaux Fragmentés (BRF) pourraient constituer une alternative viable à la dégradation des sols. L’objectif de notre étude est d’évaluer l’influence du BRF de Piliostigma reticulatum (D.C.) Hochst sur la dynamique de la biomasse adventice, les performances agronomiques du sorgho et la qualité résiduelle du sol en contexte soudano-sahélien. L’étude a été conduite au Centre du Burkina Faso. Le dispositif expérimental est organisé en 4 blocs de Fisher complètement randomisés avec huit (8) traitements chacun: Témoin Absolu (TA), Fumier (F), Cultures Associées (CA), Urée (N), BRF utilisés seuls (BRF), BRF+Fumier (BRF+F), BRF+Cultures Associées (BRF+CA), BRF+Urée (BRF+N). Les résultats ont montré que les traitements BRF+F ont été les plus compétitifs sur l’amélioration de l’humidité (+32,62%), l’infiltration (+49,73%), la densité apparente (+8,29%), le pH (+11,29%) la densité macrofaunique des sols (+91,75%), les teneurs en carbone, en azote et en phosphore des sols. La croissance du sorgho a été plus importante sous traitements F (+84,93%). Par ailleurs, la biomasse adventice a été plus faible sur les parcelles avec BRF comparativement aux temoins, excepté le traitement BRF+N. La biomasse adventice a été négativement corrélée aux teneurs en carbone, en azote et à la croissance des plants (sous F) Cette pratique mérite d’être optimisée pour une conservation durable des sols en contexte soudano-sahélien.
Author Keywords: amendements ligneux, biomasse adventice, sources azotées, sorgho, soudano-sahélien.
