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116 articles for “Urea”
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Research ArticleOpen accessEvery word in the titleEnhancing the Urea-N Use Efficiency in Maize (Zea mays) Cultivation on Acid Soils using Urea Amended with Zeolite and TSPOsumanu Haruna Ahmed, Aminuddin Hussin, Husni Mohd Hanif Ahmad et al.Problem Statement: Ammonia loss significantly reduces urea-N use efficiency in crop production. Efforts to reduce ammonia loss are laboratory oriented, as such limited in reflecting actual field conditions. This paper reports the effects of urea amended with triple superphosphate (TSP) and zeolite (Clinoptilolite) on soil pH, soil nitrate, soil exchangeable ammonium, dry matter production, N uptake, fresh cob production and … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 8,874 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Underestimated Prevalence of Ureaplasma Infections: A Comprehensive Epidemiological Study in South Korea (2018-2020)Jae Eun Choi, Bo Kyeung Jung, Eun Ju Oh, Jae Kyung KimUreaplasma infections are frequently underestimated due to potential inaccuracies in data collection from symptomatic patients. This study aimed to accurately assess the prevalence of Ureaplasma Urealyticum (UU) and Ureaplasma Parvum (UP) infections among outpatients aged 0-70 years in South Korea between 2018 and 2020. A total of 59,381 clinical samples, including swabs and urine specimens, were collected and analyzed using … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 1 · 25 Mar 2024 · 6,130 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEVALUATION OF N ADDITIVES FOR IMPROVING N USE EFFICIENCY OF SURFACE APPLIED UREA TO DRY SEEDED AND PERMANENTLY FLOODED RICEDavid D. Dunn, Pawel WiatrakThere are several potential Nitrogen (N) loss mechanisms in a dry seeded and delayed flood system rice (Oryza Satvia L.) production system including urea volatilization and denitrification. The scope and magnitude of these potential losses are largely weather dependent. Two additives (stabilizers), Agrotain and Nutrisphere-N, have been offered to rice producers for controlling these potential losses. This study compared these … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 3 · 21 Jun 2014 · 6,692 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleReduction of Ammonia Loss by Mixing Urea with Liquid Humic and Fulvic Acids Isolated from Tropical Peat SoilSusilawati Kasim, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid et al.Problem statement: Fertilizer N use efficiency is reduced by ammonia volatilization. Under low soil CEC and high pH, N from soil solution is released to the atmosphere. Ammonia loss due to low worldwide N use efficiency (33%) has been implicated in global warming. Thus, the objectives of this laboratory study were to evaluate the effectiveness of liquid humic and fulvic … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 9,513 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTHE IMPACT OF THE POLYMER COATING NUTRISPHERE™ IN INCREASING NITROGEN USE EFFICIENCY AND CORN YIELDTimothy A. Smith, Ronnie W. Heiniger, Pawel WiatrakCurrently, it is estimated that 50 to 60% of the N applied fertilizer is actually utilized by the crop with the remaining N lost through leaching or denitrification. A three year study was conducted at eight locations in North Carolina to examine the impact of Nutrisphere™ on corn yield, optimum N rate, maximum yield, tissue N concentration, plant biomass and … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 1 · 21 Dec 2013 · 8,037 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSequential Remediation Processes for Effective Removal of Oil from Contaminated SoilsDeepika Dave, Reema Alharathi, Abdel GhalyProblem statement: Over 2.2 billions of oil and oil products were transported every year and often these activities can result in air, water and soil contamination. Expousure to petroleum products can cause health problems to humn and animals and affect marine animals and wildlife habitats. Approach: The objective of this study was to developed a technology for the remediation of … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 18 Nov 2011 · 8,183 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Effect of Rumen Acid Load on Postpartum Performance and Blood Metabolic Responses in Transition Holstein CowsSadjad Danesh Mesgaran, Alireza Vakili, Alireza Heravi Moosavi, Ghasem KoolabadiProblem statement: The transition period is the most stressful time in the production cycle of a dairy cow because of depressed feed intake, endocrine and metabolic changes at parturition. The aim was to determine the effect of rumen acid load on postpartum performance and metabolic parameters in transition Holstein cows. Approach: The Acidogenicity Values (AV) of the diets were determined … …American Journal of Animal and Veterinary Sciences, Vol. 6, Issue 1 · 25 May 2011 · 7,438 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCharacterization and Evaluation of Algaof Kaolin Deposits of Yemen for Industrial ApplicationAref A. AL-Shameri, Lei Xin RongProblem statement: The Barat-Algaof kaolin deposits are characterized and evaluated for its potentials as an industrial raw material. Approach: This research studied the total mineralogical composition of the kaolin deposit, chemical and physical properties as well as intercalation of kaolinite by urea. Using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Laser particle size, Centrifuge, data from UK (England) kaolin standard … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,833 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSex-Based and Age-Specific Trends in Gardnerella vaginalis Infection: An Epidemiological Study in Republic of Korea, 2018-2022Hyeok-Jin Kwon, Sun-Gyu Kim, Junmin Lee et al.Sexually Transmitted Infections (STIs) are an important global public health issue caused by various pathogens. STI symptoms can manifest at different times, depending on the sex, age, and infection route. Here, we aimed to assess the occurrence of STIs in the Republic of Korea, explore associated global trends, and identify pathogens with high positivity rates to inform future health policies. … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 29 Jan 2026 · 1,928 accessesView PDFCite
Research ArticleOpen accessIn the keywordsWhat is Missing in STD Screening in Hong Kong?Clement Leung-Kwok Chan, Wai Yee Chan, Christopher Hon Ki Cheng, Ping XiaThis retrospective analysis was to study the prevalence of Sexually Transmitted Diseases (STD) in a Reproductive Medical Center in Hong Kong. A total of 1190 patients were included in this study. Group 1A, couples had no symptoms but presented with subinfertility; Group 1B, the subfertile couples were positive for either Chlamydia trachomatis (CT) or Ureaplasma urealyticum (UU); Group 2, couples … …Current Research in Medicine, Vol. 7, Issue 2 · 11 Jan 2017 · 8,407 accessesView PDFCite