نتایج جستجو برای: keywordson farm water management

تعداد نتایج: 1393936  

2004
Michael Lipton

Family farming, crop science and ‘globalisation’ together largely determine progress against poverty. Faster in 1960-90 than at any time in world history, such progress has slowed down. So have ‘land reform’ and science-based rises in small farmers’ staples food productivity, while aid to agriculture has fallen by over two-thirds and farm prices have been further forced down (and farm science d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده کشاورزی 1386

چکیده ندارد.

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
نادر حیدری مؤسسه تحقیقات فنی و مهندسی کشاورزی، کرج

crop’s water use efficiency (wue) is one of the major indices for the efficient use of water for crop production in agriculture. based on scientific literatures, the concept of wue has been defined in all crop management, farm/field, and water basin/irrigation network domains. plant in particular, plays an important role in the efficient use of water and enhancement of wue. plant resistance to ...

Journal: :محیط شناسی 0
محمد رضا رضایی استادیار گروه جغرافیا دانشگاه آزاد اسلامی مرودشت حمید محمدی استادیار گروه اقتصاد کشاورزی دانشگاه زابل آیت اله کرمی استادیار گروه مدیریت توسعه روستایی دانشگاه یاسوج

water shortages is one of the main factors inhibiting economic and social development and agriculture in most developing countries, especially in countries located in arid and semi-arid belt of the world. the study tried to investigate the affecting factors on water resources exploitation with considering water utilization pattern and an emphasis on sustainable water use in fars province. due t...

2007
Paul Crosson Matt A. Sanderson

Beef producers must consider management strategies and technologies for reducing potential adverse environmental effects of their farms while maintaining or improving profit. One choice is between using perennial grassland or corn as the primary crop on the farm for feed production. Perennial grassland production systems are generally regarded as more favorable due to reduced nutrient losses to...

2002
Charles Ngugi

Research conducted by the PD/A CRSP at Sagana Fish Farm has begun to identify alternative management practices and technologies that may be suitable in the region, but it should not be assumed that results obtained under controlled experimental conditions at Sagana are directly transferable to farms in the area. On-farm testing is therefore a logical step in transferring research-based technolo...

2016
M. B. DODD D. R. STEVENS

Land use and management change is a feature of New Zealand farm systems, driven by a range of factors including volatile markets and exchange rates, variable weather and climate patterns, continuous policy evolution and the inherent innovation of New Zealand farmers. Yet the common indicators used to evaluate the impact of change appear to be limited to the link between productivity (of land/la...

2000
M. J. Shaffer

Simulation frameworks for Decision Support Systems (DSSs) at the whole-farm level have not adequately supported process level management and integration of complex farming systems. Development of the Great Plains Framework for Agricultural Resource Management (GPFARM) DSS for whole-farm management required a simulation package that could handle this complex system. Object-oriented (OO) techniqu...

Abbas Maleki Ali Mokhtaran Mohammad Salakhpoor,

The research in the fields of irrigation and drainage network in the province Hamidieh to evaluate the performance of drainage was done in the land. For this purpose, three drainage server farm at intervals of 50, 70 and 80 meters in the area was selected. Blank observation on three drain pipes at intervals of 0.3,0.8,1.5,2.5 and 15 meters of lateral drains in the middle of the line in four row...

2000
A. P. RHODES A. D. MACKAY M. G. LAMBERT M. K. KRAUSSE B. H. WILLIS

Farmers have a far reaching impact in influencing the progress that is made in the sustainable management of New Zealand’s natural resources. While some advocates are ready and willing to prescribe apparently “more appropriate” behaviour, the contribution to sustainability can be questioned. There is considerable evidence that there is a complex interaction between farmers’ knowledge, attitude ...

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