[ Effets des technologies de l’aménagement en courbes de niveau et des bandes enherbées sur la conservation de l’humidité et les rendements du sorgho dans les villages de Zanzoni et Finkoloni au Mali ]
Volume 81, Issue 1, October 2025, Pages 59–70
Souleymane Dembele1, Aboubakar Bengaly2, Oumar Samake3, and Kalifa Traore4
1 Institut d’Economie Rurale, Laboratoire Sol-Eau-Plante, BP: 262 Bamako, Mali
2 Institut d’Economie Rurale, Direction Générale, BP: 258 Bamako, Mali
3 Institut d’Economie Rurale, Laboratoire Sol-Eau-Plante, BP: 262 Bamako, Mali
4 undefined, undefined
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.
The decline in soil fertility through water erosion greatly affects rainfed crops productivity in the North-East of southern zone of Mali. The objective of this study is to contribute to improving sorghum productivity in rainfed crops. A split plot design was used in 7 replications, with 3 factors. The first factor was the water and soil conservation technique with 2 levels including contour bunding with ado (big ridge) (ACN) and grass strip, the second factor was the tillage at 2 levels of which ridging and scraping, factor 3 was fertilization with 3 levels including zero input, micro dose (40kg.ha-1) and extended dose (100kg.ha-1). The measurements focused on sorghum grain and straw weight and soil moisture in the plots. The results showed that ACN with ridging and popularized fertilization was the most efficient treatment in terms of both moisture conservation and sorghum yields increasing, with 159% increase in grain yield and 195% increase in straw yield compared with the control and 40%, 61% increase in moisture respectively at Zanzoni and Finkoloni. All treatments outperformed the control. These results showed the performance of the technologies used in water conservation and improving sorghum yields and will allow farmers to make a choice of technique according to the level of intensification.
Author Keywords: erosion, soil, yield, sorghum, Mali.
Volume 81, Issue 1, October 2025, Pages 59–70
Souleymane Dembele1, Aboubakar Bengaly2, Oumar Samake3, and Kalifa Traore4
1 Institut d’Economie Rurale, Laboratoire Sol-Eau-Plante, BP: 262 Bamako, Mali
2 Institut d’Economie Rurale, Direction Générale, BP: 258 Bamako, Mali
3 Institut d’Economie Rurale, Laboratoire Sol-Eau-Plante, BP: 262 Bamako, Mali
4 undefined, undefined
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
The decline in soil fertility through water erosion greatly affects rainfed crops productivity in the North-East of southern zone of Mali. The objective of this study is to contribute to improving sorghum productivity in rainfed crops. A split plot design was used in 7 replications, with 3 factors. The first factor was the water and soil conservation technique with 2 levels including contour bunding with ado (big ridge) (ACN) and grass strip, the second factor was the tillage at 2 levels of which ridging and scraping, factor 3 was fertilization with 3 levels including zero input, micro dose (40kg.ha-1) and extended dose (100kg.ha-1). The measurements focused on sorghum grain and straw weight and soil moisture in the plots. The results showed that ACN with ridging and popularized fertilization was the most efficient treatment in terms of both moisture conservation and sorghum yields increasing, with 159% increase in grain yield and 195% increase in straw yield compared with the control and 40%, 61% increase in moisture respectively at Zanzoni and Finkoloni. All treatments outperformed the control. These results showed the performance of the technologies used in water conservation and improving sorghum yields and will allow farmers to make a choice of technique according to the level of intensification.
Author Keywords: erosion, soil, yield, sorghum, Mali.
Abstract: (french)
La baisse de fertilité des sols à travers l’érosion hydrique affecte beaucoup la productivité des cultures pluviales au Nord Est de la zone soudanienne du Mali, malgré la disponibilité des technologies antiérosives. L’objectif de cette étude est de contribuer à l’amélioration de la productivité du sorgho en culture pluviale. Pour ce faire, un dispositif en split split plot a été utilisé en 7 répétitions, avec 3 facteurs que sont la technique de conservation de l’eau et du sol à deux niveaux dont l’aménagement en courbes de niveau avec ado (ACN) et la bande enherbée; le travail du sol avec deux niveaux que sont le billonnage et le grattage; la fertilisation à trois niveaux notamment le zéro apport, la microdose (40kg.ha-1) et la dose vulgarisée (100kg.ha-1). Les mesures ont concerné les poids grain et paille du sorgho et le taux d’humidité du sol. Les résultats ont montré que l’ACN avec billonnage et fertilisation vulgarisée était le meilleur traitement avec une augmentation de 159,3% de rendement grain, 195,8% de rendement par rapport au témoin puis, une amélioration de 40% et 61,8% de l’humidité respectivement à Zanzoni et Finkoloni. Tous les traitements ont été meilleurs que le témoin dans la conservation de l’humidité que dans l’augmentation des rendements. Ces résultats ont montré une performance des technologies utilisées dans la conservation des eaux et dans l’amélioration des rendements de sorgho et permettront au producteur de faire un choix de technique selon le niveau d’intensification.
Author Keywords: érosion, sol, rendement, sorgho, Mali.
How to Cite this Article
Souleymane Dembele, Aboubakar Bengaly, Oumar Samake, and Kalifa Traore, “Effects of contour ridge tillage and grass strip technologies on moisture conservation and sorghum yields in the Southern Mali: Case Zanzon and Finkoloni,” International Journal of Innovation and Scientific Research, vol. 81, no. 1, pp. 59–70, October 2025.
