PROMOTING ACCESS TO AFRICAN RESEARCH

Journal of the Ghana Science Association

Log in or Register to get access to full text downloads.

Remember me or Register



DOWNLOAD FULL TEXT Open Access  DOWNLOAD FULL TEXT Subscription or Fee Access

Physical properties of conventionally-tilled soils under two tuber cropping systems in South-Eastern Nigeria

EU Onweremadu, JE Maduka, JE Ohaeri, BO Anene, M Lekwa, UO Ufot

Abstract


The physical attributes of soils under two tuber cropping systems in Awka-Etiti, Southeastern Nigeria was studied in 2009. It was a guided field study of soils samples. Three cropping sys-tems (treatments) were identified and 10 soil samples (replicates) were collected in each treat-ment at two depths (0-15cm, 15-30cm); and this was arranged in a randomized complete block design (RCBD). Analysis of variance (ANOVA) was used to estimate variability while least significant difference (LSD) was used at 5% level of probability to separate differences in means. Results showed significant (p=0.05) differences in particle size distribution, bulk den-sity, available water capacity (AWC) and saturated hydraulic conductivity (Ksat). Cassava–based cropping system showed greater macro aggregate instability at both depths. The AWC, clay and Ksat had significant (p=0.05) correlation with aggregate size less than 0.50mm while Ksat showed very significant (p=0.01) relationship with macro aggregate (4.75-2.00mm). There were high values of coefficient of alienation (1-R2) in predictors or dependent variables. There is the need to include more variables in future studies of these soils.



AJOL African Journals Online