نتایج جستجو برای: purpose farming

تعداد نتایج: 520054  

2000
Burton C. English Roland K. Roberts James A. Larson

Data from a survey of County Agricultural Extension Agents and the Census of Agriculture were use to develop logit regression models to estimate the probabilities of farmers adopting four precision farming technologies in Tennessee counties. County characteristics associated with adoption were owned versus rented land, land in large farms relative to total land in farms, the value of crop sales...

2002
TIMOTHY O. WILLIAMS SALVADOR FERNÁNDEZ-RIVERA

Mixed farming systems involving varying degrees of crop–livestock integration are found in many parts of Sub-Saharan Africa. Increasing population combined with climatic, economic, social, and institutional changes are transforming systems for producing crops and livestock—from systems based on extensive, shifting cultivation and grazing to ones that are more intensively managed and are based o...

2004
Pavel Smrž

This paper deals with quality assurance procedures for general-purpose language resources. Special attention is paid to quality control in wordnet development. General issues of quality management are tackled; technical as well as methodological aspects are discussed. As a case study, the application of the described procedures is demonstrated on the quality evaluation techniques in the context...

2014
Lucy J. E. Cramp Richard P. Evershed Mika Lavento Petri Halinen Kristiina Mannermaa Markku Oinonen Johannes Kettunen Markus Perola Päivi Onkamo Volker Heyd

The conventional 'Neolithic package' comprised animals and plants originally domesticated in the Near East. As farming spread on a generally northwest trajectory across Europe, early pastoralists would have been faced with the challenge of making farming viable in regions in which the organisms were poorly adapted to providing optimal yields or even surviving. Hence, it has long been debated wh...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
بهروز توپچی کارشناس ارشد توسعه روستایی و محقق مرکز تحقیقات کشاورزی و منابع طبیعی کردستان فرحناز رستمی استادیار دانشگاه رازی کرمانشاه آزاده خدابخشی دانشجوی کارشناسی ارشد آموزش کشاورزی دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران

the present study was conducted to investigate qualitative and quantitative aspects of irrigated wheat production in three major farming systems i.e. peasant, commercial and cooperative systems in kordestan province. accordingly, seven basic hypotheses were tested. the data were drawn from individual interviews with 360 farmers who planted wheat in 2004-2005. the sample was selected using multi...

2014
Laura Pieper Ulrike Sorge Ann Godkin Trevor DeVries Kerry Lissemore Marc A. Rosen

Johne’s disease (JD) is a chronic, production-limiting disease of ruminants. Control programs aiming to minimize the effects of the disease on the dairy industry have been launched in many countries, including Canada. Those programs commonly focus on strict hygiene and management improvement, often combined with various testing methods. Concurrently, organic dairy farming has been increasing in...

2014
Kafeel AHMAD

Ahmad K. (2014): Molecular farming: strategies, expression systems and bio-safety considerations. Czech J. Genet. Plant Breed., 50: 1–10. Molecular farming is an experimental application of biotechnology that involves the genetic modification of crops for the production of proteins and chemicals for medicinal and commercial purposes. The vast majority in the developing world cannot afford the h...

2013
S. Tangjang

The present practice of traditional slash-and-burn agriculture (locally called jhum kheti) by the ethnic Noctes in Tirap district of Arunachal Pradesh, India is a part of history of rural landscapes. Even today, the local jhumias totally depends on this traditional farming system for their livelihood. Nonetheless, it is time and again considered as ‘traditional’ and firm in contrast to modern m...

Journal: :New biotechnology 2008
Klaus Ammann

The concept of organic farming is summarised and compared as an example to farming with biotechnology-derived crops. If done within an ecological concept, both methods can be seen as environmentally acceptable. Organic farming does not offer consistent arguments for the rejection of transgenic crops. Some arguments (from genomics to biodiversity) are discussed in order to demonstrate that the c...

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