@article{MAKHILLAJ201914120674,
title = {Assessment of Fertility Status of Some Pedons on Basement Complex in the
Forest Ecological Zone of Southwestern Nigeria},
journal = {Agricultural Journal},
volume = {14},
number = {1},
pages = {1-6},
year = {2019},
issn = {1816-9155},
doi = {aj.2019.1.6},
url = {https://makhillpublications.co/view-article.php?issn=1816-9155&doi=aj.2019.1.6},
author = {Henry and},
keywords = {Soil fertility,nutrient index,basement complex,morphological,physical and chemical soil
properties,sandy loam},
abstract = {Soil test-based fertility management is indispensable for sustainable soil management. This
investigation was conducted to evaluate the soil fertility status of selected pedons formed on the basement
complex in Oyo State, Southwestern Nigeria. A total of 37 soil samples were collected at depth of 0-30 cm and
analysed for routine parameters following standard procedures. The statuses of the following parameters were
determined: texture, organic carbon, pH, N, K, Ca, Mg, Na, Fe, Cu, Zn, Cu and Mn. The observed data revealed
that the sand content was 71±10.72%, silt: 8±4% while clay was 21±6.42%. The textural class for the soils fall
within sandy loam, sandy clay loam and loamy sand. The soil was moderately acidic (pH: 6.02±0.09). The
organic carbon (10.9±1.59%) total N (0.16±0.02%), K (0.98±0.013 Cmol kg–1), Ca (4.84±0.43 Cmol kg–1) and P
(11.80±1.91 mg kg–1) were low to moderate in status. Based on nutrient index classification, the Cu content
(7.08±0.73 mg kg–1), Zn (11.46±0.52 mg kgG )1 and Na (0.63±0.06 Cmol kgG )1 exhibited moderate status. In
addition, Mn (104.49±3.26 Cmol kg–1) and Mg (3.2±0.16 Cmol kg–1) were high in status. Furthermore, available
Fe (143.82±5.61 mg kg–1) was very high in status. The results showed that most of the nutrient elements were
moderate to high in the soils. Therefore, proper nutrient management strategy should be adopted in order to
maintain optimal yield of crops in the area.}
}