Description:
This Appropriate Technology Transfer for Rural Areas resource page contains web links on general soil biology, mycorrhizae, arthropods, soil bacteria, soil quality measures, earthworms, cover cropping, and other topics, as well as links to ATTRA publications on soil management.

Accessible from:
http://ncatark.uark.edu/~steved/soil-links.html

Description:
Esta página tiene información sobre una grán variedad de agentes de biocontrol para insectos, patógenos de plantas, y otras plagas.

Accessible from:
http://www.iicasaninet.net/pub/sanveg/html/biocontrol/

Description:
This Cornell University (USA) website has information on a wide range of biocontrol agents including those effective in biocontrol of soil arthropods and microorganisms.

Accessible from:
http://www.nysaes.cornell.edu/ent/biocontrol/

Description:
The Center for International Forestry Research has researched a way to provide a framework that analyzes the challenge for soil fertility research and devises management strategies that produce food in sufficient quantity and quality whilst also providing soil-based ecosystem services.

Accessible from:
http://www.inrm.cgiar.org/Workshop2000/abstract/fullmikeswift.htm

Description:
An excellent introduction to the importance of soil biology in farming sustainability with a worldwide perspective, the home section of this FAO site has links to news, events, documents, case studies, and more.

Accessible from:
http://www.fao.org/ag/agl/agll/soilbiod/default.stm

Description:
Homepage of the IMPACT (Interactions Between Microbial Inoculants and Resident Populations in the Rhizosphere of Agronomically Important Crops in Typical Soils) project, whose objective is to study the molecular-ecological interactions of GMOs of commercial interest with indigenous species of the rhizosphere. The project's scientific outline contains useful background information on agricultural microbiology and interactions with genetically modified microorganisms.

Accessible from:
http://www.ucc.ie/ucc/research/biomerit/

Description:
This page from Ohio State University (USA) has resources on nematode biology, a photo gallery, and an excellent listing of retail suppliers of nematode biocontrol organisms.

Accessible from:
http://www2.oardc.ohio-state.edu/nematodes/

Description:
The Microbiology of agricultural soils page from the European Union's IMPACT project (Interactions between Microbial inoculants and resident Populations in the rhizosphere of Agronomically important Crops in Typical soils) has four short sections on the importance and roles of rhizosphere microorganisms.

Accessible from:
http://www.ucc.ie/impact/agrisf.html

Description:
This site from the University of Nebraska (USA) has sections on specific genera of nematodes for biocontrol, as well as a bibliography and links section to other sites on biocontrol.

Accessible from:
http://nematode.unl.edu/wormepns.htm

Description:
Este sitio presenta información sobre la avispa parasitiode de pupa de mosca, Pachis, que se usa para el control biologico de las plagas de moscas.

Accessible from:
http://www.galeon.com/siar/

Description:
BioAg Corporation sells humic and fulvic acid products made by the bioenergenic method (safe to use in certified organic farming).

Accessible from:
http://www.bioag.com/products.html

Description:
A Washington State University cooperative extension list of crop rotation recommendations for the control of various plant diseases.

Accessible from:
http://mtvernon.wsu.edu/plant_pathology/veg_rotations.htm