Search
Now showing items 11-20 of 55
Influence of Nitrogenous Fertilizer Rates and Plucking Intervals on Tea in Peatland and Highland Ultisol Soils of Rwanda: 1 Tea Yields
(International Journal of Tea Science, Volume 15 Issue 1 (2020, 2020)
Tea in Rwanda, is grown in different agro-ecosystems comprising highlands and drained low elevation peatlands. The plantations use uniform
agricultural practices imported from Eastern Africa countries, but without re-testing ...
Comparative Economic Analysis of Clonal Tea Yield Response to Nitrogen Fertiliser Rates within Selected Geographical Areas in Kenya
(INTERNATIONAL JOURNAL OF TEA S, 2020)
Tea sector contributes approximately 30% of export earnings in Kenya. Despite the industry continuing to realize positive gross margins,
high costs of production coupled with weak trends in export prices threaten its ...
Effects of temperature and humidity and effectiveness of some selected antioxidants on lipid oreochromis niloticus L.) of Lake Victoria, Kenya
(Research Gate, 2021)
Spoilage of fish and its related products due to oxidation is a primary problem leading to both loses in income and
environmental degradation. Various methods such as sun-drying, smoking and refrigeration as currently ...
Trace Elements in Crustaceans, Mollusks and Fish in the Kenyan Part of Lake Victoria: Bioaccumulation, Bioindication and Health Risk Analysis
(Springer US, 2020-02-04)
This is the first comprehensive report on the accumulation of Cr, Ni, As, and Ag in the fish species Nile tilapia Oreochromis
niloticus and Nile perch Lates niloticus from Lake Victoria, complemented with recent data on ...
Nitrogenous Fertilizer Rates and Plucking Intervals Effects on Soil Organic Carbon, pH and Tea Yields and Their Relationships in Eastern Africa Tea Growing Regions
(International Society of Tea Science, 2020)
Eastern Africa tea grows in high rainfall areas where nutrients depletion through leaching, and surface run-off can be high, in addition to removal with crop. Nutrients replenishment through fertilizer applications is ...
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis online, 2021)
A new oleanane type triterpene characterized as 3α, 24-diacetoxy-12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural elucidation was accomplished using ...
Microplastics as Emerging Contaminants: Occurrence, Toxicology, and Analysis
(IG1 Global publishers of timely knowledge, 2020)
The ever-increasing production of plastics and concomitant poor plastic waste disposal systems explain the recent rising concerns over the occurrence of microplastics in freshwater resources. Microplastics are presently ...
The effect of substituents on the reactivity of dichloridotriphenylphosphinoruthenium(II) complexes: kinetic and mechanistic study
(Taylor and Francis, 2021)
The rates of substitution of chloro ligands from a series of ruthenium(II) complexes, [Ru(κ3-L)(PPh3)Cl2] (L = 2,2′:6′,2′′-terpyridine, 1; 4′-(4-methylphenyl)-2,2′:6′,2′′-terpyridine, 2; 4,4′4″-tri-tert-butyl-2,2′:6′,2′′ ...
Structural, Magnetic And Electronic Properties Of NbN Polymorphs By Ab-Initio Study
(2020)
The structural, electronic and
magnetic properties of NbN are studied by ab initio method by considering the four polymorphs
{B1 (rock salt), B4 (wurtzite), B81 (NiAs) and Bh
(WC-type)} of NbN. The results show that ...
Effect of kaolin pre-treatment method and NaOH levels on the structure and properties of kaolin-derived faujasite zeolites
(Royal Society of Chemistry, 2021)
Fusion with NaOH is considered effective in the conversion of kaolin to soluble aluminosilicates. However, to date, there is no consistency in the nature and type of zeolite structures prepared from kaolin via this approach, ...