Materials, Energy, Water and Environmental Sciences: Recent submissions
Now showing items 221-240 of 641
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Numerical Analysis of Heat Exchanger for Spray-Assisted Low-Temperature Desalination System
(Hindawi, 2020-12-12)A numerical study for heat exchanger for spray-assisted low-temperature desalination system is presented for an existing low-temperature desalination unit at Arusha Technical College. This is aimed at recognizing the effect ... -
Investigation of Aloe lateritia Gel as Corrosion Inhibitor for Mild Steel in 2 M HNO3 and 1 M H2SO4 Media
(Scientific Research, 2016-01-15)Corrsion inhibition of Aloe lateritia gel for Mild steel in 2 M HNO 3 and 1 M H 2 SO 4 solutions was in- vestigated by potentiodynamic polarization, Scanning electron microscopy (SEM) and Foutier transform infrared ... -
Assessment of fluoride removal in a batch electrocoagulation process: A case study in the Mount Meru Enclave.
(Elseiver, 2021-03-01)The presence of excessive amounts of fluoride than prescribed standards has been reported in various sources of domestic water supply around the slopes of Mount Meru and other parts in Tanzania. Efforts to remove the ... -
Harmful algal bloom and associated health risks among users of Lake Victoria freshwater: Ukerewe Island, Tanzania
(J Water Health, 2019-07-24)There is a global concern regarding the occurrences of harmful algal blooms (HABs) and their effects on human health. Lake Victoria (LV) has been reported to face eutrophication challenges, resulting in an increase of ... -
Removal of lamivudine from synthetic solution using jamun seed (Syzygium cumini) biochar adsorbent
(Emerging Contaminants, 2023-09-01)Antiviral drugs such as lamivudine have been globally identified in the environment and marked as emerging pollutants of concern due to their bioactive extremity. Following therapeutic uses, approximately 70% of the oral ... -
The Potential of Common Beneficial Insects and Strategies for Maintaining Them in Bean Fields of Sub Saharan Africa
(Scientific Research Publishing, 2016-02-10)Beneficial insects provide natural ecosystem services such as biological control of pests, soil for mation, nutrient cycling and pollination of plants. Beneficial insects include pollinators important in the essential ... -
Spatial Distribution of Soil Hydrological Properties in the Kilombero Floodplain, Tanzania
(MDPI, 2017-11-30)Analysis and interpretation of soil properties dynamics is a keystone in understanding the hydrologic responses and yield potential of floodplain wetlands. This study characterizes the distribution and spatial trends of ... -
Regeneration of fluoride-saturated bone char by means of wood ash and heat
(International Society for Fluoride Research, Inc, 2016-12-08)The regeneration of fluoride ion (F)-saturated bone char with different concentrations of wood ash in distilled water and by heating was investigated. Samples of 100 g of regenerated bone char were added into plastic ... -
Leguminous cover crops differentially affect maize yields in three contrasting soil types of Kakamega, Western Kenya
(Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS), 2011)Maize production in smallholder farming systems in Kenya is largely limited by low soil fertility. As mineral fertilizer is expensive, green manuring using leguminous cover crops could be an alternative strategy for farmers ... -
Potential of Controlling Common Bean Insect Pests (Bean Stem Maggot (Ophiomyia phaseoli), Ootheca (Ootheca bennigseni) and Aphids (Aphis fabae)) Using Agronomic, Biological and Botanical Practices in Field
(Scientific Research Publishing, 2015-05-22)Common bean production in Africa suffers from different constrains. The main damage is caused by insect pest infestations in the field. The most common insects pests which attack common bean in the field are the bean ... -
Extrapolations on the Use of Rhizobium Inoculants Supplemented with Phosphorus (P) and Potassium (K) on Growth and Nutrition of Legumes
(Scientific Research Publishing, 2014-10-22)Land scarcity and poor farming management practices has resulted in to intensive agriculture which rendered most of the soil in sub Saharan Africa depleted in essential plant nutrients. High prices of chemical fertilizer ... -
Effects of Rhizobium inoculation and Supplementation with P and K, on Growth, Leaf chlorophyll content and Nitrogen Fixation of Bush bean varieties
(American Journal of Research Communication, 2014)Low crop productivity is a general problem facing most farming systems in sub-Saharan Africa (SSA). These low yields are pronounced in grain legumes and are often associated with declining soil fertility and reduced ... -
Invasive weeds with pesticidal properties as potential new crops
(Elsevier, 2017-12-30)Plants with pesticidal properties have been investigated for decades as alternatives to synthetics, but only a handful have been commercialised and developed as non-food cash crops. One of the reasons why pesticidal plants ... -
Effect of Rhizobium inoculation and supplementation with phosphorus and potassium on growth and total leaf chlorophyll (Chl) content of bush bean Phaseolus vulgaris, L.
(Scientific Research Publishing, 2014-12-09)The study was conducted to investigate the effect of Rhizobium inoculation and supplementation of phosphorus and potassium on growth and total leaf chlorophyll content to the three released bush bean varieties in ... -
Prospective Bioactive Compounds from Vernonia amygdalina, Lippia javanica, Dysphania ambrosioides and Tithonia diversifolia in Controlling Legume Insect Pests
(Scientific Research Publishing, 2014-10-22)Synthetic insecticides are widely known to control insect pest, but due to high operational cost, environmental pollution, toxicity to humans, harmful effect on non-target organisms and the de velopment of insect resistance ... -
Fertility management for maize cultivation in some soils of Western Kenya
(Elsevier, 2011-12-01)Soil fertility loss in Western Kenya is exacerbated by inadequate nutrient management and causes reduced maize yields. Given the diversity of soil types, cropping seasons, and the resource endowment of farmers, the magnitude ... -
Isolation and characterization of nitrogen fixing rhizobia from cultivated and uncultivated soils of northern Tanzania
(Scientific Research Publishing, 2014-12-18)Soil bacteria1 called rhizobia are gram-negative capable to colonize the soil immediately surrounding roots under the influence of the plant “rhizosphere” and reduce atmospheric nitrogen into the form available to plants ... -
Drivers of increased soil erosion in East Africa’s agro-pastoral systems: changing interactions between the social, economic and natural domains
(Springer Berlin Heidelberg, 19-06-18)Increased soil erosion is one of the main drivers of land degradation in East Africa’s agricultural and pastoral landscapes. This wicked problem is rooted in historic disruptions to co-adapted agro-pastoral systems. ... -
Impacts of Synthetic and Botanical Pesticides on Beneficial Insects
(Scientific Research Publishing, 2016-06-17)Sustainable methods to control insect pests that affect crop yield have become a great challenge to mainly smallholder farmers. Beneficial insects in agricultural fields play an important role in natural pest control and ... -
Extracts from field margin weeds provide economically viable and environmentally benign pest control compared to synthetic pesticides
(Public Library of Science, 2015-11-23)Plants with pesticidal properties have been investigated for decades as alternatives to synthetics, but most progress has been shown in the laboratory. Consequently, research on pesticidal plants is failing to address gaps ...
