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Is biodiversity the future of farming?

operate successful, complex farming systems based on biological synergies and adaptive management. One is Takao Furuno's duck/fish/rice/fruit farm in Japan. He produces duck meat, duck eggs, fish meat, fruit, and rice without any purchased outside inputs, using a highly synergistic system of production on the same acreage where he previously only produced rice. And, in this new system, his rice yields have increased up to 50% over previous yields from an energy-intensive rice monoculture. Joel Salatin, of Polyface Farms near Swoope, VA, has developed a rotational grazing production system featuring pastures containing at least 40 varieties of plants and numerous animal species. Salatin's farm uses little fossil fuel, yet the farm is highly productive. The 57-hectare farm annually produces 30,000 dozen eggs, 10,000 to 12,000 broilers, 100 beef animals, 250 hogs, 800 turkeys, and 600 rabbits.

A study by George Boody and colleagues has calculated, on a watershed basis, that diverse, synergistic farms can be profitable and simultaneously benefit the environment. They showed that when farms are converted from corn/soybean monocultures to more diverse operations, net farm income can increase by as much as 108% while generating significant environmental and social benefits. Principles that might guide postmodern farms are almost diametrically opposed to those supporting industrial agriculture. They may need to:

  • Be energy conserving
  • Feature both biological and genetic diversity
  • Be largely self-regulating and self-renewing
  • Be knowledge intensive
  • Operate on biological synergies
  • Employ adaptive management
  • Feature ecological restoration rather than choosing between extraction and preservation
  • Achieve optimum productivity by featuring nutrient-density, and multi-product synergistic production on limited acreage


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Contact: Sara Uttech
suttech@agronomy.org
608-268-4948
American Society of Agronomy
16-Feb-2007


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