نتایج جستجو برای: farming systems

تعداد نتایج: 1203462  

Journal: :Journal of the Bangladesh Agricultural University 2016

2012
J. P. Choisis C. Thévenet A. Gibon

The huge changes in agricultural activities, which may be amplified by the forthcoming Common Agriculture Policy reform, call the future of crop-livestock systems into question and hence the impact of these changes on landscapes and biodiversity. We analyzed relationships between agriculture, landscape and biodiversity in south-western France. The study area covered about 4,000 ha and included ...

Journal: :به زراعی کشاورزی 0
سید مجید موسوی دانشجوی کارشناسی ارشد، گروه مهندسی علوم خاک، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری محمد علی بهمنیار دانشیار، گروه مهندسی علوم خاک، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری زهرا احمدآبادی دانشجوی کارشناسی ارشد، گروه مهندسی علوم خاک، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری

in order to investigate distribution status of heavy metals in cropping systems of water logging and dry farming, an experiment was conducted as split-plot arrangement based on randomized complete block design with three replications in research field of sari agricultural science and natural resources university. a paddy-soil considered for water logging system and the planted field with vegeta...

Journal: :Journal of Agriculture, Food Systems, and Community Development 2011

Journal: :INTERNATIONAL RESEARCH JOURNAL OF AGRICULTURAL ECONOMICS AND STATISTICS 2017

2013
Maria S. Bowman David Zilberman

In response to a shift toward specialization and mechanization during the 20th century, there has been momentum on the part of a vocal contingent of consumers, producers, researchers, and policy makers who call for a transition toward a new model of agriculture. This model employs fewer synthetic inputs, incorporates practices which enhance biodiversity and environmental services at local, regi...

2016
Marjorie Bonareri Oruru Ezekiel Mugendi Njeru

Smallholder farming systems form unique ecosystems that can protect beneficial soil biota and form an important source of useful genetic resources. They are characterized by high level of agricultural diversity mainly focused on meeting farmers' needs. Unfortunately, these systems often experience poor crop production mainly associated with poor planning and resource scarcity. Soil fertility is...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید