'Alternative agriculture' is used here to be inclusive of a
broad range of agricultural systems that are alternatives to present
common practices. In includes ecoagriculture, biodynamic farming,
organic agriculture, and other such approaches. All are looking
for ways to make agriculture ecologically and economically sustainable.
A suitable inclusive definition is found in MacRae, et al, Polices,
programs, and regulations to support the transition to sustainable
agriculture in Canada in American Journal of Alternative Agriculture,
Vol. 5, #2, 1990, pg. 76.
"Sustainable agriculture is both a philosophy and a system of farming. It is rooted in a set of values that reflects an awareness of both ecological and social realities and a commitment to respond appropriately to that awareness. It emphasizes design and management procedures that work with natural processes to conserve all resources and minimize waste and environmental damage, while maintaining or improving farm profitability. This is accomplished by taking into account nutrient and water cycles, energy flows, beneficial soil organisms, natural pest controls, and the humane treatment of animals. Such systems also aim to ensure the well-being of rural communities, and to produce food that is nutritious and uncontaminated with products that might harm human and livestock health."
The erratic economics of agriculture is considered to be the primary
impetus behind increased crop specialization in North America.
Modifications in farming strategies have lead to drastic changes
in farming systems:
These changes have resulted in a set of problems that effect agriculture
and society as a whole as discussed in, Organic Food - Paying
the Real Price by Theresa Marquez. (Organic Harvester, Vol.
3, #3, pg. 8-10) She outlines some of the true costs of conventional
agriculture (much paid with tax dollars) that the alternative
forms of agriculture are trying to resolve. These include:
There is a growing awareness that the yields of conventional farming
have come at a high environmental and social cost. While there
are many visions of the farming future they have in common greater
cooperation with nature, greater concern for economic independence
from banks and government-subsidy programs, and diminished reliance
on chemicals and petroleum. Both small and large-scale growers
are beginning to use sustainable practices to conserve soil, discourage
insect pests and improve their crops. (Verlyn Klinkenborg, A
Farming Revolution, Sustainable Agriculture, in National Geographic,
December 1995, pg. 68) Permaculture and other forms of alternative
approaches to agriculture develop models that may be emulated
by others.