نتایج جستجو برای: keywordson farm water management

تعداد نتایج: 1393936  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

Journal: :Acta Scientiarum. Biological Sciences 2013

ژورنال: توسعه آبزی پروری 2019

The aim of this study was to assess the impact of trout farm effluent on some physicochemical and characteristics biotic indices in Daryaser River (Mazandaran Province). Sampling of water and macrobentic fauna were done in 5 stations (control, in before influent of farm; and other stations include; in 35, 125, 400 and 750 m after effluent were selected in two weekly in summer, 2011. Results sho...

2000
James Blake Atkins

The reduction of agricultural nonpoint source (NPS) pollution is essential to protect the quality of North Carolina's water resources. In order to reduce these pollutants, increased implementation of Best Management Practices (BMPs) by individual producers is being proposed. Recommended BMPs include soil and water conservation practices, fertilizer and animal waste management and integrated pes...

Journal: :Acta Veterinaria Scandinavica 2007
Michele T Guerin Wayne Martin Jarle Reiersen Olaf Berke Scott A McEwen John-Robert Bisaillon Ruff Lowman

BACKGROUND Following increased rates of human campylobacteriosis in the late 1990's, and their apparent association with increased consumption of fresh chicken meat, a longitudinal study was conducted in Iceland to identify the means to decrease the frequency of broiler flock colonization with Campylobacter. Our objective in this study was to identify risk factors for flock colonization acting ...

Journal: :JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES 2012

Journal: :Environmental management 2008
Kim A Markwell Christine S Fellows

On-farm water storages (locally known as farm dams or farm ponds) are an important part of many agricultural landscapes, as they provide a reliable source of water for irrigation and stock. Although these waterbodies are artificially constructed and morphologically simple, there is increasing interest in their potential role as habitat for native flora and fauna. In this article, we present res...

2016
S. Peukert B. A. Griffith P. J. Murray C. J. A. Macleod R. E. Brazier

One of the major challenges for agriculture is to understand the effects of agricultural practices on soil properties and diffuse pollution, to support practical farm-scale land management. Three conventionally managed grassland fields with similar short-term management, but different ploughing histories, were studied on a long-term research platform: the North Wyke Farm Platform. The aims were...

1999
F. Labbé P. Garin

The area under irrigated corn has significantly increased in the Charente river basin during the last 10 years. Corn water requirements are maximum in the summer, the period with low water flows and highest environmental vulnerability. Periods of water shortage during which irrigation is temporarily forbidden occur frequently. To reduce water demand, specific water saving policies are required....

2009
Beau J. Freeman

This paper presents the need, value, and concept of flexible irrigation water supply systems that can deliver water with flexibility in frequency, rate, and duration under the control of the farmer at the point of application using a limited rate arranged-demand or other schedule. It introduces the needed terminology including "congestion"-how much reserve time and capacity is required to assur...

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