Glossary beginning with S

Selective herbicide

Description

A chemical product used for eliminating certain types of weeds only (ie either grasses

Description

The leaves are "narrow" as opposed to the "broad" leaves of broadleaved weeds. Also called 'monocots' having one seed leaf opposed to 'dicots' having two seed leaves.

Authoritative On-line References and Resources

The International Weed Science Society represents individual associations around the world. 
or broadleaved weeds

Description

The leaves are "broad" as opposed to the "narrow" leaves of grasses. Also called 'dicots' having two seed leaves, while grasses are 'monocots' having one seed leaf.

Authoritative On-line References and Resources

http://www.iwss.info The International Weed Science Society.
) and not affecting specified crops.

Authoritative On-line References and Resources

http://www.weeds.iastate.edu/ An invaluable source of contemporary information about herbicides and weeds from Iowa State University. Synonyms: selective herbicides
Slash & burn

Description

A form of agriculture, common in tropical regions, in which trees and natural undergrowth are cut down and burned, and crops are then grown on the bare soil for a few years until it loses its fertility.

Authoritative On-line References and Resources

http://earthobservatory.nasa.gov/Library/Deforestation/ A feature on deforestation posted on Nasa's Earth Observatory website - the story behind satellite images. Synonyms: slash and burn
Soil erosion

Description

Displacement of solids (soil, mud, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down-slope movement.

Authoritative On-line References and Resources

http://soilerosion.net/ This site brings together reliable information on soil erosion

Description

Displacement of solids (soil, mud, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down-slope movement.

Authoritative On-line References and Resources

http://soilerosion.net/ This site brings together reliable information on soil erosion from a wide range of disciplines and sources. It aims to be the definitive internet source for those wishing to find out more about soil loss and soil conservation.
from a wide range of disciplines and sources. It aims to be the definitive internet source for those wishing to find out more about soil loss and soil conservation.
Stewardship

Description

The responsible and ethical management of a crop protection product in a way that takes full and balanced account of the interests of users, future generations, and other species.

Authoritative On-line References and Resources

http://www.croplife.org/ CropLife International is a global federation representing the plant science industry and a network of regional and national associations in 91 countries. These organisations are committed to sustainable agriculture

Description

Management and conservation of the natural resource base and the use of technological and organizational change in a manner that ensures continued agricultural production from the land for present and future generations. Such practices conserve land, water, and plant and animal genetic resources. They are environmentally non-degrading, technically appropriate, economically viable, and socially acceptable. Sustainability rests on the principle that we must meet the needs of the present without compromising the ability of future generations to meet their own needs. Therefore, stewardship of both natural and human resources is of prime importance.

Authoritative On-line References and Resources

www.nal.usda.gov Information from the USDA's Alternative Agricultural Systems Information Center.
through innovative research and technology in the areas of crop protection, non-agricultural pest control, seeds and plant biotechnology.
Sustainable agriculture

Description

Management and conservation of the natural resource base and the use of technological and organizational change in a manner that ensures continued agricultural production from the land for present and future generations. Such practices conserve land, water, and plant and animal genetic resources. They are environmentally non-degrading, technically appropriate, economically viable, and socially acceptable. Sustainability rests on the principle that we must meet the needs of the present without compromising the ability of future generations to meet their own needs. Therefore, stewardship

Description

The responsible and ethical management of a crop protection product in a way that takes full and balanced account of the interests of users, future generations, and other species.

Authoritative On-line References and Resources

http://www.croplife.org/ CropLife International is a global federation representing the plant science industry and a network of regional and national associations in 91 countries. These organisations are committed to sustainable agriculture through innovative research and technology in the areas of crop protection, non-agricultural pest control, seeds and plant biotechnology.
of both natural and human resources is of prime importance.

Authoritative On-line References and Resources

www.nal.usda.gov Information from the USDA's Alternative Agricultural Systems Information Center. Synonyms: sustainable farming, sustainable cropping
Sustainable intensification

Description

United Nations Food and Agriculture Organisation (FAO) defines Sustainable Crop Production Intensification as optimizing crop production per unit area, taking into account social, political, economic and environmental impacts.

Authoritative On-line References and Resources

Sustainable intensification of crop production is one of FAO's core themes.