نتایج جستجو برای: p olsen
تعداد نتایج: 1270437 فیلتر نتایج به سال:
Cite this article as: Ned H Kalin, Andrew S Fox, Rothem Kovner, Marissa K Riedel, Eva M Fekete, Patrick H Roseboom, Do P M Tromp, Benjamin P Grabow, Miles E Olsen, Ethan K Brodsky, Daniel R. McFarlin, Andrew L Alexander, Marina E Emborg, Walter F Block, Julie L Fudge, Jonathan A Oler, Overexpressing corticotropin-releasing hormone (CRH) in the primate amygdala increases anxious temperament and ...
در این بررسی آثار کربنات کلسیم و pH بر سینتیک تثبیت فسفر در چهار خاک غیرآهکی تیمارشده با سطوح متفاوت کربنات کلسیم خالص، همچنین، در شش خاک تنظیمشده با pH 5 تا 9 مطالعه شد. خاکها قبل از آزمایش با K2HPO4 به میزان mgP/kg45 تیمار شد. سپس، در اینکوبیتور به مدت صد روز در دمای C○25 نگهداری شد. در زمانهای مشخص از خاکها نمونهگیری و غلظت فسفر در آنها به روش Olsen اندازهگیری شد. نتایج نشان داد که و...
rhizosphere has different chemical and biological properties from the bulk soil. information about phosphorus (p) availability in the rhizosphere soils treated with municipal sewage sludge (mss) is limited. therefore, the objectives of this research were to evaluate the rhizospheric effects of wheat (triticum aestivum l.) on phosphorus availability and biological properties in 10 calcareous soi...
abstract the objectives of this research was to evaluate the rhizospheric effects of wheat (triticum aestivum l.) on the status of various inorganic p fractions and total organic p in 10 calcareous soils amended with 1% (w/w) municipal sewage sludge from the refinery of shahrekord city under rhizobox conditions. thus, wheat plant was planted in completely randomized design with three replicatio...
Seyla Benhabib (ed.): Democracy and Difference: Contesting the Boundaries of the Political, Princeton, NJ, Princeton University Press, 1996, 373 pp., hardback 535.00, paperback $16.95. Amy Gutmann and Dennis Thompson: Democracy and Disagreement, Cambridge, Mass. and London, The Belknap Press, 1996, 422pp., hardback S18.50. James G. March and Johan P. Olsen: Democratic Governance, New York, Free...
Einstein-Podolsky-Rosen entanglement and steering in two-well Bose-Einstein-condensate ground states
Q. Y. He,1,2 P. D. Drummond,2 M. K. Olsen,3 and M. D. Reid2 1State Key Laboratory of Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China 2Centre for Quantum Atom Optics, Swinburne University of Technology, Melbourne, Victoria 3000, Australia 3Centre for Quantum Atom Optics, University of Queensland, Brisbane, Queensland 4072, Australia (Received 3 January 2012; publi...
effects of calcium carbonate and ph on the kinetics of p fixation were studied on four non-calcareous soils treated with different levels of pure caco3, and also on six soils which were adjusted for ph within the range of 5 to 9. soils were also treated with k2hpo4 at the rate of 45 mg p/kg before they were incubated for a period of 100 days at 25○c. soil samples were taken at certain predeterm...
Olsen phosphorus (Olsen P) is an important indicator of soil labile phosphorus. Determining the effect fertilization on P and fractions (labile phosphorus, medium stable phosphorus) can guide application phosphate fertilizer. Therefore, it great significance to clarify changes influencing factors under long-term fertilization. This study investigated in haplic phaeozems soils (0–20 cm) two 30-y...
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