Available iron distribution in Nigerian soils - A review
Enhancement and maintenance of soil available iron (Fe) in a continuous cropping system such as practiced in Southeast Nigeria is critical to producing iron rich food crops and sustaining agricultural productivity. This review focused on the distribution of Fe in Nigerian soils and factors affecting its availability. It is understood that the amount of Fe in soils depends on soil texture, pH, calcium carbonate (CaCO3)...
Spatio-temporal variations of rainfall erosivity in Rwanda
This study aims at investigating the spatio-temporal distribution of rainfall erosivity in Rwanda between the 1940s and the 1990s. The study gives new insights into rising trends in rainfall erosivity and, therefore, prepares agriculturalists to take precautionary measures for better land conservation. Modified Fournier Index (MFI) for consecutive decades from 1941 to 1990 and mean differences in Fourier Index (FI) and...
A trial to determine the impact of soil washing on coal seam gas (CSG) dam sediments in Queensland
Extracting coal seam gas (CSG) is becoming increasingly common in Australia and throughout the world. With the number of wells in Queensland alone increasing from 10 in 1995 to 4,484 by 2013 and 20,000-40,000 more expected to be drilled in the next 20 years, the production of methane from CSG is forecast to become one of Australia’s largest export commodities within the next decade. There is, however, growing...
Effect of different levels of spent engine oil on soil porperties, grain yield of maize and its heavy metal uptake in Abakaliki, Southeastern Nigeria
This research was carried out at the Plant and Screen house to study effect of different levels of spent engine oil application on soil properties, grain yield of maize and heavy metals uptake. Completely randomized design was used with nine treatment levels of spent engine oil at 0.0, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 and 1.0 L were applied to 20 kg of soil. Maize was used as a test crop. Data collected from the study were...