November 2011
Soil classification and micromorphology: A case study of Cholistan Desert
Cholistan Desert is an extension of the Great Indian Desert and covering an area of 26,330 km2. The desert can be divided into two main geomorphic regions: Northern region, known as Lesser Cholistan, constitutes the desert margin and consists of a series of saline alluvial flats alternating with low sand ridges/dunes; and Southern region, known as Greater Cholistan, a wind resorted sandy desert comprising of a...
November 2011
Sources and distribution of polycyclic aromatic hydrocarbons in post flooded soil near Afam power station, South East Niger Delta, Nigeria
Post flooded forest soil profile samples obtained near Afam power station, contiguous to Imo River were analysed for quantitative determination of polycyclic aromatic hydrocarbons (PAHs). Relatively moderate bulk density (1.17 g/cm3), permeability (1.79 cm3/s) and macro-porosity (60%) values indicate that fluid flow through the soil profile would be unimpeded. PAHs content for the top soil horizon appeared similar to...
November 2011
Bacterial retention in three soils of the Rolling Pampa, Argentina, under simulated rainfall
Bacterial retention by soils is a key factor in predicting bacterial transport through surface runoff into water bodies. The objective was to evaluate biological, soil and hydrologic factors that affect bacterial retention in three soil types of the Rolling Pampa, Argentina. Simulated rainfall was applied on field plots previously inoculated with Escherichia coli and simultaneously biological variables such as...
November 2011
Determinants of adoption of conservation tillage practices in maize-cowpea cropping systems: The case of Makueni District, Kenya
The low soil moisture cannot support productive agriculture to meet the increasing population in the low rainfall tropical areas. Ripping and tied-ridging are some of the recent technologies introduced by the Food and Agricultural Organization of the United Nations, and is used to conserve moisture in the semi-arid areas. Although farmers are aware of the technical gains of these technologies, the adoption rates have...
November 2011
Effect of tillage practices on the soil carbon dioxide flux during fall and spring seasons in a Mediterranean Vertisol
In this study, we assessed the effect of conventional tillage (CT), reduced (RT) and no tillage (NT) practices on the soil CO2 flux of a Mediterranean Vertisol in semi-arid Morocco. The measurements focused on the short term (0 to 96 h) soil CO2 fluxes measured directly after tillage during the fall and spring period. Soil temperature, moisture and soil strength were measured congruently to study their effect...
November 2011
Different land use types in the semi-arid rangelands of Kenya influence soil properties
Rangelands in semi-arid Kenya have recently witnessed extensive land use changes. These changes can mainly be attributed to increased livestock populations and the response of the increased human population to both local and exogenous opportunities and constraints. This study was carried out in Kibwezi district of Kenya mainly inhabited by agro-pastoralists. The main objective of this study was to establish how...
November 2011
Effect of Rice Mill Wastes Application on Selected Soil Physical Properties and Maize Yield (Zea mays l.) On an Ultisol in Abakaliki Southeastern Nigeria
An experiment was carried out in 2008, 2009 and 2010 (residual) cropping season at Teaching and Research Farm of Faculty of Agriculture and Natural Resources Management, Ebonyi State University, Abakaliki to determine the long term effect of burnt and unburnt rice mill wastes application on soil physical properties and maize yield. The experiment was laid out in Randomized Complete Block Design (RCBD) with three...
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