نتایج جستجو برای: agricultural extension workers

تعداد نتایج: 357561  

2017

Prior Converted Croplands (PCCs) are historic wetlands that were transformed (drained, dredged, filled or leveled) to support production of agricultural crops prior to “Swampbuster” provisions of the 1985 Food Security Act. Our research suggests that PCCs can substantially reduce nitrate export from agricultural watersheds in the region, an ecosystem function shared with natural and restored we...

Journal: :Nutrition abstracts and reviews 1962
L A MAYNARD

SIGNIFICANT developments in nutrition in the United States began early in the last quarter of the 19th century. This review covers the subsequent period of approximately 50 years. The developments followed much earlier ones . in Europe, which provided background and guidance. The story is an account of the accomplishments of scientists, most of whom were initially trained as agricultural chemis...

Journal: :The Proceedings of the Nutrition Society 1961
M J WAY

Food losses in field and store 5 cause outstanding losses in many crops. Because there are few trained nematologists, many other important nematode problems on key food crops such as rice and paddy remain uninvestigated. Because nematodes are soil organisms, control is especially difficult. Few satisfactory nematicides are known and these are too expensive for most agricultural crops in Europe....

2014
Matthew R. McLennan Kimberley J. Hockings

The ability of wild animals to respond flexibly to anthropogenic environmental changes, including agriculture, is critical to survival in human-impacted habitats. Understanding use of human foods by wildlife can shed light on the acquisition of novel feeding habits and how animals respond to human-driven land-use changes. Little attention has focused on within-species variation in use of human ...

2004
M. Mróz M. Ciołkowska

RESUME The paper presents the results of land cover and crops identification achieved on the basis of the time series of 27 ENVISAT -1/ ASAR images acquired in Image Mode and Alternating Polarization Mode during the 2003 observing campaign for Malbork test site in northern Poland. The results are compared with those obtained from SPOT -4 multitemporal data. High degree of their similarity has b...

2012
Babasaheb B. Fand Ankush L. Kamble Mahesh Kumar

Abiotically stressful environment in changing climate is predicted to impact negatively the diversity and abundance of insect-pests; and ultimately the extent of damage caused in economically important agricultural crops. This may affect perilously the agricultural production and the livelihood of farmers especially in tropical and subtropical countries where larger proportion of work force is ...

Journal: :Pest management science 2003
Robert E Lynch Baozhu Guo Patricia Timper Jeffrey P Wilson

Host-plant resistance is an efficient, economical and environmentally benign approach used to manage many pests and diseases of agricultural crops. After nearly a century of research, the resources and tools have become more refined, but the basic tasks in breeding for resistance have not changed. Resistance must be identified, incorporated into elite germplasm, and deployed in a form useful to...

Journal: :Aslib Proceedings 2012
Sailas Nyareza Archie L. Dick

Purpose – The objective of this paper is to investigate the benefits and limitations of using radio to communicate agricultural information to peasant farmers, and how radio can be successfully incorporated into agricultural extension service programmes. Design/methodology/approach Quantitative and qualitative research techniques were used and applied to gather, analyse and interpret data. Twen...

Issa F. O. Obioma O. D. Sallau R.

This study assessed of youth involvement in agricultural production in Sabon Gari Local Government Area. The data used for this study were collected using interview schedule administered to 112 respondents who were selected through multi-stage sampling procedure. Descriptive statistics such as frequency, percentages and means were used to analyze the data. The result revealed that majority (95....

2014
Jonathan E. Suk Cornelius Bartels Eeva Broberg Marc J. Struelens Amanda J. Ozin

INTRODUCTION The rapid pace of discovery in the lifesciences can have profound implications for public health, and the focus of much deliberation in recent years has been on how best to ensure that they are positive and not negative. A key focus of debate has been on dual-use research of concern (DURC), which has been defined as life-science research that “could be directly misapplied to pose a...

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