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135 results for “nutrients”
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Research ArticleOpen accessIn the abstractEffect of Some Ecological Factors on Thegrowth of Aspergillus niger and Cladosporium sphaerospermumIbtisam Mohammed AbabutainIndoor airborne fungi have been implicated in human health problems, damage to building materials, books, clothes and stored foods, which effected by different ecological factors. Aspergillus niger and Cladosporium sphaerospermum are the most dominant indoor airborne fungi were obtained from our previous study. The effect of normal indoor conditions (Temperature and Relative Humidity) on their growth was studied. Including their … …American Journal of Applied Sciences, Vol. 10, Issue 2 · 12 Feb 2013 · 7,566 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhosphorus Biogeochemical Cycling in a Sugar Cane AgroecosystemD. Sequera, D. Lopez-HernandezThe annual harvest of sugarcane plantations together with the burning of the crop before harvest, a common practice of management of sugarcane plantations in South America, leads to the loss of significant amounts of nutrients in those agroecosystems. Thus prescribed burning operations could progressively diminish the level of soil organic matter and increase nutrient deficiency in soils of sugar cane … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 29 Jan 2013 · 7,547 accessesView PDFCite
Research ArticleOpen accessIn the abstractField Scale Modeling to Estimate Phosphorus and Sediment Load Reductions Using a Newly Developed Graphical User Interface for Soil and Water Assessment ToolAaron R. Mittelstet, Erin R. Daly, Daniel E. Storm et al.Streams throughout the North Canadian River watershed in northwest Oklahoma, USA have elevated levels of nutrients and sediment. Soil and Water Assessment Tool (SWAT) was used to identify areas that likely contributed disproportionate amounts of Phosphorus (P) and sediment to Lake Overholser, the receiving reservoir at the watershed outlet. These sites were then targeted by the Oklahoma Conservation Commission (OCC) … …American Journal of Environmental Sciences, Vol. 8, Issue 6 · 28 Dec 2012 · 6,473 accessesView PDFCite
Research ArticleOpen accessIn the abstractDrying of Poultry Manure for Use as Animal FeedA. E. Ghaly, K. N. MacDonaldThe poultry industry is one of the largest and fastest growing sectors of livestock production in the world. The estimated 2010 world flock was over 18 billion birds with a yearly manure output of 22 million tonnes. Storage and disposal of raw poultry manure have become an environmental problem because of the associated air, water and soil pollution. Environmental and … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 5 Jul 2012 · 12,091 accessesView PDFCite
Research ArticleOpen accessIn the abstractKEY PARAMETERS OF MEASLES VIRUS PRODUCTION FOR ONCOLYTIC VIROTHERAPYK. Weiss, D. Salzig, M. D. Mühlebach et al.Attenuated measles virus has revealed selective tumor cell killing and is currently tested in clinical trials for the therapy of cancer patients. The amount of infectious particles per dose needed for oncolytic therapy can be more than a million times higher compared to vaccination. This requires highly effective production processes which guarantee the measles virus quantities needed for its use … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 2 · 22 Jun 2012 · 9,791 accessesView PDFCite
Research ArticleOpen accessIn the abstractEcological Sanitation in Morocco Promotion of the Urine-Diversion Dehydration Toilets-Case of Dayet IfrahYoussef Abarghaz, M. Mustapha Mahi, Mme Christine Werner et al.Problem statement: Most of people in rural areas in Morocco don’t have adequate systems of collection, evacuation and transport of black and gray water. They simply defecate in nature. There is a huge demand, which cannot possibly be met by conventional sanitation systems due to the enormous costs of the pipe network, lack of water and serious environmental drawbacks in … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 7 Apr 2012 · 8,028 accessesView PDFCite
Research ArticleOpen accessIn the abstractEcological Monitoring of Danube water Quality in Budapest RegionHosam E.A.F. Bayoumi Hamuda, Istvan PatkoProblem statement: Serious health problems and other economic costs related to water treatment, remediation and locating a new water supply, become an evidence of water pollution caused by human activities. The main problems of the Danube River basin are associated with nutrients, organic pollution and hazardous pollutants. The aim of the study is to assess the surface water of the … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 5 Apr 2012 · 9,033 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Nitrogen Containing Wastes Addition on Natural Aerobic Composting of Rice StrawThaniya Kaosol, Suchinun Kiepukdee, Prawit TowatanaProblem statement: Rice straw is an agricultural residue. Typically, the rice straw can be burn in the rice field after the harvesting process. The burning can cause air pollution. Another alternative rice straw management method is animal feed. The amount of rice straw is enormus in Thailand. Another sustainable way to manage rice straw is required. Rice straw is used … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 2 · 10 Mar 2012 · 8,197 accessesView PDFCite
Research ArticleOpen accessIn the abstractFluctuations of Phytoplankton Community in the Coastal Waters of Caspian Sea in 2006Siamak Bagheri, Mashhor Mansor, Marzieh Makaremi et al.Problem statement: The Caspian Sea ecosystem has been suffered with many problems since 1980s. Aanthropogenic pollution from heavy metals, hydrocarbons, pesticides, changes in the quantity of nutrient inputs by rivers, are significant threats to biodiversity and biological resources such as plankton structure in the Caspian Sea. According to the significant of phytoplankton community in marine system. The state of the … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 20 Oct 2011 · 8,460 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntagonistic Effects of Fertilizer on Photochemical Efficiency of Hibiscus cannabinus L. (Kenaf) Planted on Beach Ridges Interspersed with Swales SoilMohd-Hazimy Yusoff, Hazandy Abdul-Hamid, Arifin Abdu et al.Problem statement: Hibiscus cannabinus L. or Kenaf is a highly productive, warmseasonal C3 annual crop and is one of the potential candidates to substitute kenaf fiber as raw product for pulp and paper production. It survives well on less fertile soils including those of Beach Ridges Interspersed with Swales (BRIS) soil. Approach: The objective of this study was to determine … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 19 Sep 2011 · 8,512 accessesView PDFCite