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77 results for “Drought”
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Research ArticleOpen accessIn the abstractCOMPARING GIBBS ENERGY RELATIONSHIPS FOR AMMONIA VOLATILIZATIONS FROM AGRICULTURAL SOILS FOR POTATO PRODUCTIONGuodong Liu, Yuncong Li, Ashok AlvaSoil drought, that can be enhanced by global warming increases ammonia (NH3) volatilization. This laboratory study was conducted with two soils: Krome Gravelly Loam (KGL) from Florida and Warden Silt Loam (WSL) from Washington State and two fertilizers: Ammonium sulfate [(NH4)2SO4] or ammonium nitrate (NH4NO3). Two water regimes including 20 and 80% Field Capacity (FC) were used at 20°C which … …American Journal of Environmental Sciences, Vol. 10, Issue 1 · 8 Feb 2014 · 7,493 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Cyanobacterium Synechocystis sp. PCC 6803 Glutaredoxin Gene (slr1562) Protects Escherichia coli against Abiotic StressesAhmed Gaber, Salah El-Din El-AssalProblem statement: Glutaredoxins (GRXs) are ubiquitous small heat stable glutathione-dependent oxidoreductase enzymes that play a crucial role in plant development and response to oxidative stress. Approach: Cyanobacterium Synechocystis strain PCC 6803 contains two genes (slr1562 and ssr2061) encoding glutaredoxins. In the present investigation the slr1562 gene (grxC) was isolated and characterized. Results: The results revealed that the amino acid sequence … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 5 Mar 2012 · 7,586 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation of Water Stress on Macro Elements in Rapeseed Genotypes Leaf (Brassica napus)Mohammad Nasri, Hossein Zahedi, Hamid Reza Tohidi Moghadam et al.In order to study of changing of macro elements in water stress condition an experimental design was carried out to study effect of different levels irrigation (0, 25, 50, 75) percentage of Field Capacity (FC) on changing macro elements (N, P, K) in 5 rapeseed genotypes (PF7045-01, Symbol, Mohican, Hyola-42, Syn-1). The experimental design split plot in Randomized Complete Block … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 4 · 31 Dec 2008 · 7,807 accessesView PDFCite
Review ArticleOpen accessIn the abstractThe Rainfall Factor of Climate Change Effects on the Agricultural Environment: A ReviewOlumuyiwa Idowu Ojo, Masengo Francois IlungaThe study of the climatic elements is vital for sustainable development of agriculture of a region. Particularly, rainfall temporal analyses for trends, fluctuations and periodicities are necessary as such can indirectly furnish the status of an environment. A trend may be quite instructive for different segments of the human and natural systems. Extreme weather events that can lead to events … …American Journal of Applied Sciences, Vol. 14, Issue 10 · 26 Oct 2017 · 8,338 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Microfinance on the Efficiency of Maize Producers in NigeriaMuhammad Auwal Ahmed, Zainalabidin Mohamed, Abdullahi Iliyasu, Golnaz RezaiThe study applies descriptive analysis, Slacks-Based Measure (SBM) of efficiency model and fractional regression model to data collected in 2016 using cross-sectional survey of maize producers in Nigeria. The purpose was to determine the impact of microfinance on the technical efficiency of maize producers and evaluates factors that influence inefficiency among credit beneficiaries and non-credit beneficiaries. Results show that the … …American Journal of Applied Sciences, Vol. 14, Issue 5 · 30 May 2017 · 7,673 accessesView PDFCite
EditorialOpen accessIn the abstractProtecting crop species from biotic and abiotic constraints in the era of Global Change: are we ready for this challenge?Marco Landi, Giovanni BenelliReliable and affordable supply of food is of crucial importance to the progress and stability of human societies. During the last century, we have assisted to an extraordinary increase of crop yields, especially for the most widespread and consumed crop species, such as rice, wheat, corn and soybean. The Broadbalk experiment, one of the oldest continuous agronomic experiments in the … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 2 · 4 Jun 2016 · 8,402 accessesView PDFCite
Research ArticleOpen accessIn the abstractLocal Climate Trends and Farmers’ Perceptions in Southern Tigray, Northern EthiopiaM. G. Abrha, S. SimhadriThis study aimed to investigate changes in local climate, farmers’ perception to the change and factors affecting perception of farmers to climate change. For trend analysis, we gathered station based rainfall records for the period 1978-2012, while for perception analysis survey was carried out. 600 farming households were randomly selected from four districts using a multi-stage sampling method. Nonparametric analysis … …American Journal of Environmental Sciences, Vol. 11, Issue 4 · 8 Oct 2015 · 7,926 accessesView PDFCite
EditorialOpen accessIn the abstractNuclear Energy is Renewable EnergyRichard VasquesBarrucho, L., 2013. Brazil drought stokes worries over energy shortages. BBC Brasil, Sao Paulo. Cohen, B.L., 1983. Breeder reactors: A renewable energy source. Am. J. Phys., 51: 75-76. São Paulo., J.P., 2014. Blackouts in Brazil: Power to the people. The Economist Newspaper Limited. Moore, P., 2006. Nuclear re-think. International Atomic Energy Agency. OECD, 2010. Projected Costs of Generating Electricity. 1st … …Energy Research Journal, Vol. 5, Issue 2 · 26 Nov 2014 · 10,859 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalysis of Eco friendly Refrigerants Usage in Air-ConditionerC. Chinnaraj, R. Vijayan, P. GovindarajanProblem statement: There are two types of global warming contributions through refrigeration and air conditioning systems. The first one is the Direct Global Warming Potential (DGWP) due to the emission of refrigerants and their interaction with heat radiation. The second one is the Indirect Global Warming Potential (IDGWP) due to the emission of Carbon Dioxide (CO2) by consuming the energy … …American Journal of Environmental Sciences, Vol. 7, Issue 6 · 27 Dec 2011 · 8,467 accessesView PDFCite