ISSN 2756-3863
International Journal of Manures and Fertilizers Vol. 1 (11), pp. 223-229, November, 2012. © International Scholars Journals
Full Length Research Paper
Effects of cattle and poultry manures on organic matter content and absorption complex of a sandy soil under cassava cultivation (Manihot esculenta, Crantz)
Dakul A. Kwallat, Miram Shatt and Kipre Presi
Department of Plant and soil Science, Faculty of Agricultural science, Universite Nangui Abrogoua, Abidjan, Côte d’Ivoire .E-mail: [email protected]
Accepted 31 October, 2012
Abstract
This study examined the A and B horizons of deep, developed and moderately unsaturated sandy ferrallitic soils amended with cattle and poultry manures under cassava (Manihot esculenta Crantz) cultivation. Therefore, a plot experiment was carried out by using a randomized complete blocks design in 4 replications and fields treatments which included unfertilized (control) and one dose (10 t/ha) of both manures. The study of the different fractions of animal manures showed that the poultry had the greatest content of C (organic carbon), N (nitrogen), P (phosphorus), K (potassium), Ca (calcium) and C:N ratio (p < 0.01). However, the value of Mg (magnesium) in the studied manures was not significantly different (p < 0.01). The manure treatment significantly increased the soil organic matter contents from 0.46 to 2.8 and 1.1% respectively with poultry and cattle manures (p < 0.01). Organic fertilizer significantly increased the cation exchange capacity from 1.7 to 12.75 and 3.8 me:100 g and the bases saturation content from 47 to 80 and to 76% respectively with the poultry and cattle manures (p < 0.01). The organic fertilizer showed significant effect on earthworms populations Hyperiodrilus africanus (Oligochaeta, Eudrilidae) in the soil, with 128 and 85% respectively about the poultry and cattle manures compared to the control (p < 0.01).
Key words: Cattle manure, poultry manure, cassava, organic matter, cation exchange capacity, bases saturation content.