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22 articles for “Vegetation Period”
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Research ArticleOpen accessIn the abstractImpact of Absorbing Agent on Moisture Reserves of Winter Wheat in the Conditions of Semiprovided Dry Farming Land of the South-East of KazakhstanLaila Klimovna Tabynbayeva, Serik Barmenbekovich Kenenbayev, Meiramgul Shagievna Suleimenova et al.In the conditions of dry-land farming, the leading factor of productivity, which is minimal, is moisture. Soil moisture directly influences the growth of plants by means of aeration, transfer of nutrient substances, absorption and transformation. The main crop acreage of the spike cereals in the south-east of Kazakhstan is located in dry farming lands that are characterized as dry and … …OnLine Journal of Biological Sciences, Vol. 17, Issue 2 · 27 May 2017 · 7,406 accessesView PDFCite
Research ArticleOpen accessIn the abstractCrop Yield and Quality of Lentil Varieties in the Conditions of the Southeast of KazakhstanAlma Zhumabaevna Saikenova, Mukhtar Sarsenbekovich Kudaibergenov, Tаken Nurgassenovich Nurgassenov et al.The article presents the results of the three-year research aimed at studying and determining lentil varieties with high yields, suitable for mechanized harvesting (tall with the high attachment of lower beans), maturing at the same time and non-shedding, as well as resistant to stress factors, for use in breeding. The objectives of the research include the study of lentil varieties … …OnLine Journal of Biological Sciences, Vol. 21, Issue 1 · 29 Jan 2021 · 6,652 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeasurement of Ground Level Ozone at Different LocationsYasmen A. Mustafa, Sinan J. MohammedProblem statement: Ground level ozone is the most important index substance of photochemical smog. Photochemical smog is now observed in many urban and industrial centers around the world and it has become a common phenomenon in many large cities. Ozone is a most harmful pollutant for humans, in addition it plays an important role in damaging vegetation and materials. Therefore … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 13 Jun 2012 · 7,402 accessesView PDFCite
Research ArticleOpen accessIn the abstractPalynological Studies of Sediments from North Chioma-3 Well, Niger Delta and its Palaeoenvironmental InterpretationsOlugbenga Ebenezer Ige, Kalyani Datta, Kanak Sahai, Krishna Kumar RawatProblem statement: The Niger Delta Nigeria stands among the world's best-studies delta complexes but its superficial deposits are among the poorest known publicity. In spite of continuous oil prospecting production in the area, there is still a paucity of published information and data on the palynology of the Niger Delta. This study aimed at reconstructing the palaeoenvironments of the Niger … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 10 Oct 2011 · 7,884 accessesView PDFCite
Research ArticleOpen accessIn the abstractGlomalin Production and Microbial Activity in Soils Impacted by Gypsum Mining in a Brazilian Semiarid AreaAdalia Cavalcanti do Espírito Santo Mergulhao, Helio Almeida Burity, Fabio Sérgio Barbosa da Silva et al.Problem statement: Mining activities involve the removal of the vegetal cover and the soil organic layer, causing a severe environmental impact. In Northeast Brazil, 40% of the world’s crude gypsum is found in a semiarid area, making this region responsible for 95% of the gypsum demand in the national market. Although economically important, this activity is harmful to the environment. … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 4 · 11 Nov 2010 · 9,023 accessesView PDFCite
Research ArticleOpen accessIn the abstractElapse Time Factor on Induced Vegetative Moisture Uptake in an Unsaturated SoilMuazu Mohammed Abdullahi, Nazri Bn Ali, Kamarudin Bn Haj AhmedProblem statement: Soil consolidation is generally time dependent, therefore soil displacement as a result root water uptake is space and time dependent. The time-dependent nature of abstraction of ground water by vegetation need to be evaluated in order understand the effect of time elapse on matric suction a generation and subsequent ground displacement. Approach: The current approach used the theory … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 4 Nov 2010 · 7,710 accessesView PDFCite
Research ArticleOpen accessIn the abstractForest Policy Impact Assessment in the Ouachita National Forest and the Valuation of Conserving Red-Cockaded WoodpeckersDifei Zhang, Michael M. Huebschmann, Thomas B. Lynch, James M. GuldinProblem statement: The Ouachita National Forest received approval in 1996 for an amendment to its Forest Plan that would allocate 10% of the Forest to long-rotation silviculture. The purpose of the new management area is to restore pre-European settlement forest conditions and recreate habitat for the endangered red-cockaded woodpecker. Approach: This study explored the effects of restoring an ecosystem, from … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 7,118 accessesView PDFCite
Research ArticleOpen accessIn the abstractUptake of Heavy Metals by Jatropha curcas L. Planted in Soils Containing Sewage SludgeParisa Ahmadpour, Azmi Mat Nawi, Arifin Abdu et al.Problem statement: The chemical pollution of soil has become a major source of concern and has posed serious health problems within the last few years in many developed nations. A variety of organic and inorganic pollutants, including heavy metals, are being mixed in with the cultivated soil and water. Sewage sludge was one of the major sources of enrichment of … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 10,265 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetecting Hornbeam Trees Phenological Characteristics of Mountain ForestSasan Babaei Kafaki, Asadollah Mataji, Seyed Armin HashemiProblem statement: Phenology is the study of the seasonal occurrence of developmental or life cycle events, such as bud break, flowering, or autumn leaf drop. The proposed study attempted to quantify changes in Carpinus betulus L. phenology of deciduous broad leaf forest between the years 2003-2006. Approach: Phenological studies were fulfilled during four years as from January 2003-December 2006 by … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 7,273 accessesView PDFCite
Research ArticleOpen accessIn the abstractMonitoring Growing Season Length of Deciduous Broad Leaf Forest Derived From Satellite Data in IranSasan Babaei Kafaki, Asadollah Mataji, Seyed Armin HashemiProblem statement: Leaf phenology describes the seasonal cycle of leaf functioning and is essential for understanding the interactions between the biosphere, the climate and biogeochemical cycles. This study aimed to quantify changes in plant phenology of deciduous broadleaf forests between the years 1982-1999 and investigate the relationships between the onset dates of phenology and climatic factors. Approach: We studied the … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 8,557 accessesView PDFCite