Weeds control through tree-crop associations in a parkland of Burkina Faso
- International Journal of Biological and Chemical Sciences , 11 (2) : 623-639
Résumé
The effects of microclimate due to tree presence on weeds development were assessed under Baobab (Adansonia digitata) and Néré (Parkia biglobosa) in a parkland in Nobéré (Burkina Faso). In association with these trees, two crops were grown: a shade tolerant crop (Colocasia esculenta, taro) and a shade intolerant cereal (Pennisetum glaucum, Millet). Weeds species and biomass production were assessed in a plot (0.5 m X 0.5 m) in three concentric zones around tree trunk (A, B and C) and in the open field (H). Shannon's diversity index was calculated for each zone of both tree species and both crops. Seventy-six (76) weeds species from nineteen (19) families were recorded on the parkland from which only 13 families were found in the open field. Then, weeds floristic composition was more diversified in area beneath both trees species compared to the open field. The most …
Mots-clés
Adansonia digitata, Colocasia esculenta, Parkia biglobosa, Parkland agroforestry system, Pennisetum glaucum, weeds floristic composition