نتایج جستجو برای: phosphorus management

تعداد نتایج: 890612  

2017
Elliott Ronald Dossou-Yovo Idriss Baggie Justin Fagnombo Djagba Sander Jaap Zwart

Inland valleys are becoming increasingly important agricultural production areas for rural households in sub-Saharan Africa due to their relative high and secure water availability and soil fertility. In addition, inland valleys are important as water buffer and biodiversity hot spots and they provide local communities with forest, forage, and fishing resources. As different inland-valley ecosy...

2013
Elani Streja Wei Ling Lau Leanne Goldstein John J Sim Miklos Z Molnar Allen R Nissenson Csaba P Kovesdy Kamyar Kalantar-Zadeh

Elevated serum phosphorus is associated with higher death risk in hemodialysis patients. Previous studies have suggested that both higher serum parathyroid hormone (PTH) level and higher dietary protein intake may contribute to higher serum phosphorus levels. However, it is not well known how these two factors simultaneously contribute to the combined risk of hyperphosphatemia in real patient-c...

ژورنال: علوم آب و خاک 2017

Cover crops, conservation tillage systems and organic fertilizers have played an important role in maintaining or enhancing soil quality. In order to assess the combined effects of these techniques on soil quality an experiment was conducted as split Plot experiment based on randomized complete block design with three replications at Shahid Bahonar University of Kerman in 2011-2012.  &nbs...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

ژورنال: علوم آب و خاک 2019

To study the behaviour of phosphorus (P) sorption in the agricultural soils of Khoy region and the effect of long-term cultural management with the application of poultry manure on the P sorption parameters, bath experiments were carried out with 16 soil samples (8 cultivated and 8 virgin soils) and 9 initial P concentrations from 0 to 30 mg L-1 in 0.01M CaCl2 as a background solution. After eq...

2008
J. I. Sultan S. Khalil A. Javed M. Yaqoob M. Yousaf

phosphorus bioavailability and performance of broiler chicks. J. I. Sultan*1, S. Khalil1, A. Javed1, M. Yaqoob1, and M. Yousaf1, 1Institute of Animal Nutrition and Feed Technolgy, University of Agriculture, Faisalabad, Pakistan, 2Department of Livestock Management,University of Agriculture, Faisalabad, Pakistan, 3Department of Poultry Science, University of Agriculture, Faisalabad, Pakistan, Fa...

2017
Tyler Wagner Larry E. Erickson

Eutrophication of lakes and reservoirs is a major water quality problem that poses significant environmental, economic and social threats around the world. Monitoring and managing lakes and reservoirs to prevent or limit eutrophication, therefore, has significant value. The literature has been reviewed to study ecological engineering and management methods that have been and can be applied to i...

اکبری نیا, مسلم, سلیمانی رحیم آبادی, معصومه, کوچ, یحیی,

According to importance of forests, enforcement of accurate and systematic management about them is necessary; in this regard recognition of soil quality is essential principles. With the aim of studying soil macroelement in each of Populus deltoiedes, Alnus subcordata, Taxodiom distichum stands and around uncultivated area (control), 8 samples taken from each of 0-15cm and 15-30cm depth. Soil ...

2012
Rupesh Raina Gaurav Garg Sidharth Kumar Sethi Martin J Schreiber James F Simon

Phosphorus plays a pivotal role in various biological processes. Therefore, a deeper understanding of Phosphorus Homeostasis is essential for management and treatment of conditions causing an imbalance in phosphate metabolism. The widely understood parathyroid hormone (PTH) and vitamin D axis that governs this phosphate homeostasis has been critiqued for its inability to explain a few rare gene...

Journal: :Nephron. Clinical practice 2012
João M Frazão Teresa Adragão

Phosphate-binder therapy for hyperphosphataemia is key to the treatment of patients with chronic kidney disease (CKD)-mineral and bone disorder (MBD). Calcium-free phosphate binders are increasingly favoured since calcium-based agents potentially cause harmful calcium overload and vascular calcification that confound the benefits of reducing serum phosphorus. Several calcium-free phosphate bind...

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