نتایج جستجو برای: and phosphorus

تعداد نتایج: 16833769  

Journal: :تحقیقات آب و خاک ایران 0
امیرحسین شکوهی پردیس کشاورزی و منابع طبیعی دانشگاه تهران مسعود پارسی نژاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران حمیده نوری استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران بابک متشرع زاده پردیس کشاورزی و منابع طبیعی دانشگاه تهران

due to the limited availability of phosphorus in soil especially calcareous soils, it is important to investigate strategies to increase ability of phosphorus uptake by plant. evaluating the effect of zeolite (clinoptilolite), irrigation levels and preferential flows, simultaneously and independently, on increasing phosphorus uptake by corn was objective of this study. potted study was done in ...

Journal: :The Journal of nutrition 1981
H Tagari N Silanikove S Hurwitz

Percentage net phosphorus availability (NPHA) and set phosphorus utilization (NPHU) of the phosphorus contained in a heat-sterilized poultry litter (PL) as compared to feed grade dicalcium phosphate (DCP) for lambs was assessed by the "slope" method. The method was based on the evaluation of the function of apparent phosphorus absorption (NPHA), or retention (NPHU), on phosphorus intake. Nitrog...

2016
Jie Liu Shunhong Zhang Yaguang Guo Qian Wang

The intriguing properties of phosphorene motivate scientists to further explore the structures and properties of phosphorus materials. Here, we report a new allotrope named K4 phosphorus composed of three-coordinated phosphorus atoms in non-layered structure which is not only dynamically and mechanically stable, but also possesses thermal stability comparable to that of the orthorhombic black p...

Journal: :Clinical journal of the American Society of Nephrology : CJASN 2016
Orlando M Gutiérrez Afshin Parsa Tamara Isakova Julia J Scialla Jing Chen John M Flack Lisa C Nessel Jayanta Gupta Keith A Bellovich Susan Steigerwalt James H Sondheimer Jackson T Wright Harold I Feldman John W Kusek James P Lash Myles Wolf

BACKGROUND AND OBJECTIVES Disorders of mineral metabolism are more common in African Americans with CKD than in European Americans with CKD. Previous studies have focused on the differences in mineral metabolism by self-reported race, making it difficult to delineate the importance of environmental compared with biologic factors. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In a cross-sectio...

Journal: :JPEN. Journal of parenteral and enteral nutrition 2001
R N Dickerson J M Gervasio J J Sherman K A Kudsk W L Hickerson R O Brown

To compare phosphorus intake and renal phosphorus regulation between thermally injured patients and multiple trauma patients, 40 consecutive critically ill patients, 20 with thermal injury and 20 with multiple trauma, who required enteral tube feeding were evaluated. Phosphorus intakes were recorded for 14 days from the initiation of tube feeding which was started 1 to 3 days postinjury. Serum ...

Journal: :تحقیقات دامپزشکی 0
ناصر علیدادی گروه علوم بالینی، دانشکده دامپزشکی دانشگاه تهران محسن قهار دانش آموخته دوره دکترای عمومی دامپزشکی، دانشکده دامپزشکی دانشگاه تهران پروانه خضرایی نیا گروه علوم بالینی، دانشکده دامپزشکی دانشگاه تهران زهره خاکی گروه علوم بالینی، دانشکده دامپزشکی دانشگاه تهران علیرضا باهنر گروه بهداشت مواد غذایی دانشکده دامپزشکی دانشگاه تهران سعید ستاری دانش آموخته دوره دکترای عمومی دامپزشکی، دانشکده دامپزشکی دانشگاه تهران پرستو یوسفی

this study was designed to induce nutritional hypophosphatemia to investigate the possibility of intervascular hemolysis in the control (7 lambs) and test (8 lambs) groups. phosphorus of the ration for the test and control groups was formulated as 0.063 % and 0.34% of dry matter, respectively. the jugular vein blood samples were weekly taken for inorganic phosphorus, alkaline phosphatase, billi...

2017
Dinesh Adhikari Tianyi Jiang Taiki Kawagoe Takamitsu Kai Kenzo Kubota Kiwako S. Araki Motoki Kubo

Improvement of phosphorus circulation in the soil is necessary to enhance phosphorus availability to plants. Phosphorus circulation activity is an index of soil's ability to supply soluble phosphorus from organic phosphorus in the soil solution. To understand the relationship among phosphorus circulation activity; bacterial biomass; pH; and Fe, Al, and Ca concentrations (described as mineral co...

2011
Desiree D. tullos

Restoring historic lake-fringe wetlands is considered a favorable means of reducing lake phosphorus levels; however, it is unclear how various strategies for managing wetland connectivity influence phosphorus release. We investigated the relationships between temperature and soil characteristics of restored wetlands to identify management strategies that minimize external phosphorus loading to ...

2010
Ahmed Alhaidary

Problem statement: There is evidence that the type of fiber influences the development of nephrocalcinosis in rats, but the effect of pectin was unknown. Approach: The effects of dietary pectin and cellulose on kidney calcification were studied in female rats. The diets used contained either 0.4-0.6% phosphorus and either cellulose (10%, w/w) or pectin. The purified diets used were balanced for...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2012
afshin morovvat abdolmajid ronaghi mehdi zarei mostafa emadi mohammad bagher heidarianpour

appropriate management of soil phosphorus (p) fertility in highly calcareous soils of iran as around the world should rely upon sound knowledge about the phosphorus reserve and its bioavailability. despite numerous reports on the positive effects of vesicular arbuscular mycorrhizae (vam) fungi on phosphorus uptake which is associated to ectomycorrhiza as a branch of two major branches of group ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید