Results 41 to 50 of about 709,476 (145)

Special issue: Innovations in farming systems approaches: Introduction [PDF]

, 2009
absen
Bellon, S., Casabianca, F., Darnhofer, I., Dedieu, B., Greef, K.H., de, Madureira, L., Milestad, R., Paine, M., Steyaert, P., Stobbelaar, D.J., Zasser-Bedoya, S.   +10 more
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Nature and Nature Values in Organic agriculture an analysis of contested consepts and values among different actors in organic farming [PDF]

, 2006
The relationship between agriculture and nature is a central issue in the current agricultural debate. Organic Farming has ambitions and a special potential in relation to nature.
Hansen, Lene, Højring, Katrine, Noe, Egon   +2 more
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Fundamentals of organic agriculture [PDF]

, 2008
Organic agriculture can be traced back to the early 20th century, initiated by the Austrian spiritual philosopher Rudolf Steiner. It was later diversified by a number of key people, and more recent versions are guided by principles issued by the ...
Andrén, Olof, Bergström, Lars, Eriksson, Lars-Olov, Gerzabek, Martin, Kirchmann, Holger, Thorvaldsson, Gudni, Winninge, Mikael   +6 more
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Organic farming enhances parasitoid diversity at the local and landscape scales [PDF]

, 2015
1. The magnitude of the benefits derived from organic farming within contrasting managed landscapes remains unclear and, in particular, the potential scale-dependent response of insect parasitoids is relatively unexplored.
Benton, Tim G., Cerretti, Pierfilippo, Gabriel, Doreen, Gillespie, Mark A. K., Inclán, Diego J., Kunin, William E., Marini, Lorenzo, Sait, Steven M.   +7 more
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Driver-pressure-impact and response-recovery chains in European rivers: observed and predicted effects on BQEs [PDF]

, 2011
The report presented in the following is part of the outcome of WISER’s river Workpackage WP5.1 and as such part of the module on aquatic ecosystem management and restoration. The ultimate goal of WP5.1 is to provide guidance on best practice restoration
Dahm, V., Feld, C.K., Keizer-Vlek, H.E., Logez, M., Lorenz, A., Marzin, A., Michels, H.C.U., Verdonschot, P.F.M.   +7 more
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Past and future of a century old Citrus tristeza virus collection: a California citrus germplasm tale. [PDF]

, 2013
Citrus tristeza virus (CTV) isolates collected from citrus germplasm, dooryard and field trees in California from 1914 have been maintained in planta under quarantine in the Citrus Clonal Protection Program (CCPP), Riverside, California. This collection,
Georgios eVidalakis, Greg eGreer, James eDiaz, Jinbo eWang, Jinbo eWang, John eBash, Orhan eBozan, Ramon eSerna, Raymond K. Yokomi, Richard F Lee, Robert R Krueger, Sun-Jung eKwon, Svetlana Y Folimonova, Tavia eRucker, Tyler eDang   +14 more
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An Inexpensive Device for Multiple Depth Sampling of Groundwater Quality in Cohesionless Aquifers

EDIS, 2002
This document is CIR943, one of a series of the Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date May 1991.
Wendy D. Graham
doaj   +2 more sources

The impact of cattle drinking points on aquatic macroinvertebrates in streams in south-east Ireland [PDF]

, 2019
peer-reviewedTeagasc PublicationMeasures that prevent cattle access to watercourses are commonly implemented through agri-environment schemes, in an effort to address the objectives of the Water Framework Directive. Despite the widespread implementation,
Finn, John, Harrison, S., Madden, D., Ó hUallacháin, D.   +3 more
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Evolutionary-thinking in agricultural weed management [PDF]

, 2009
Agricultural weeds evolve in response to crop cultivation. Nevertheless, the central importance of evolutionary ecology for understanding weed invasion, persistence and management in agroecosystems is not widely acknowledged.
Ainsworth, Ainsworth, Andersson, Arntz, Ashley, Baker, Baker, Ball, Barberi, Barrett, Barrett, Barrett, Barton, Beckie, Beckie, Booth, Buhler, Burnside, Busi, Carroll, Cavers, Chapman, Cleland, Clements, Clements, Cocker, Connell, Cousens, Cousens, Coustau, Dauer, Derksen, Diggle, Drake, Dunbabin, Elena, Ellstrand, Fabrice Roux, Fernandez-Quintanilla, Franks, Franks, Fried, Fuhrer, Genton, Ghersa, Gressel, Gressel, Grime, Hairston, Hald, Hamrick, Harper, Hawes, Heap, Heap, Hermisson, Holst, Ianetta, Jacquemin, Jander, Jordan, Jordan, Jordan, Kassen, Kirchner, Lande, Lande, Le Corre, Le Roux, Leiss, Lenormand, Martin Vila-Aiub, Maxwell, Mayr, McCloskey, Menchari, Menchari, Merilä, Michael, Morgan, Mortensen, Mortimer, Moss, Naylor, Neve, Neve, Neve, Neve, Neve, Novak, Oerke, Orr, Orr, Owen, Patterson, Paul Neve, Pedersen, Pimentel, Plowman, Powles, Powles, Powles, Preston, Ray, Reboud, Reboud, Reboud, Reed, Roux, Roux, Roux, Roux, Roux, Ruegg, Ryan, Sahli, Salzmann, Sherry, Smith, Sultan, Swanton, Tabashnik, Tardif, Thompson, Van Acker, Van Valen, Vila-Aiub, Wang, Warwick, Warwick, Warwick, Warwick, Warwick, Weaver, Weiner, Weinig, Westra, Wijngaarden, Wilczek, Willi, Ziska   +140 more
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Materials and Installation of Delivery Pipes for Irrigation Systems

EDIS, 2004
This document, Cir 1424, is one of a series of the Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date February 2001.
Brian Boman, Sanjay Shukla
doaj   +2 more sources