Abstract: A two-year field experiment was conducted to evaluate the influence of nitrogen (0, 30, 60, and 120 kg N ha-1) and phosphorus (0, 30, and 60 kg P2O5 ha-1) application on grain yield and yield components of five New Rice for Africa (NERICA) cultivars, their parents, and a check on a degraded soil in the moist savanna of Nigeria. Nerica 14 recorded the highest grain yield of 1.3 mg ha-1compared to the other NERICA cultivars. It also produced significantly (P < 0.05) longer panicles (1...
Rapid Rural Appraisals (RRA) were conducted among one hundred and fifty five farmers in rice growing areas of Obafemi/Owode and Ifo Local Government Areas of Ogun State in South-West of Nigeria to investigate farmers’ practices of growing rice in rice/cassava intercropping system in 2007. The farmers in these villages cultivated 2 to 4 farms with an average farm size of about 2 ha. Results from the RRA showed that the farmers have been growing rice for over 21 years. About 31% of the farmer...
ABSTRACT Microscopic examination of pollen grains determined the botanical origin and geographical location of honey. This study was aimed at determining the botanical sources of honey using qualitative and quantitative pollen analysis. Ten grams (10g) of honey was diluted with 8ml of distilled water and centrifuged at 2,500 rpm for ten minutes, and the sediments were used to analyse the po...
Cattails (Typha latifolia) are noxious and invading species which are rapidly spread across water bodies. This study aims at determining the distribution and ecological effects of cattail on invaded ecosystems in Kwara State. Survey was made across the wetlands in the sixteen Local Government Areas in Kwara State. Out of these, wetlands of eight Local Government were selected due to the prevalence of cattails in them. Each location with cattail distribution was divided into three subplots whi...
Abstract Low fruit quality and yield in cucumber is linked directly to continuous cropping under poor soil fertility management practices in Nigeria. In 2014 and 2015 planting seasons, field trials were conducted at the National Horticultural Research Institute (NIHORT), Ibadan to determine effects of poultry manure and NPK 15:15:15 fertilizer on growth, nutrient uptake and yield of cucumber on Ferruginous soil. Ten treatment combinations comprising two cucumber varieties and five levels of s...
Salinity is a major problem directly affecting the ecological balance and the development of agriculture in the Mediterranean basin, particularly North Africa. This phenomenon is considered as the most important abiotic factor limiting crops growth and productivity, degrading and polluting soils in arid and semi-arid. In order to study the influence of salinity, on the physiological parameters and to assess the potential of adaptation of the olive tree in a saline environment, three parcels c...
Biodiversity (biological diversity) is commonly defined as the variety of all life. It includes genetic, species and ecosystem diversity and all the interactions between them. Biodiversity is important because it contributes to environmental, economic, cultural and social well-being by providing valuable ecosystem services such as pollination, carbon storage by forests, bio filtration of water, nutrient cycling, soil formation, erosion control, sediment retention and recreation opportunities....
Crops are faced with several definite environmental stresses either concurrently or at different periods during their entire growth and productivity season. Combinational occurrence of stresses and pollution such as salinity stress and crude oil pollution is destructive to crop growth and productivity than these stresses occurring separately at different crop growth. This research was aimed at showing different stress combinations (salinity stress and crude oil pollution) and their impact on ...