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Seven case studies in sustainable agriculture
(Science Council of Canada, Ottawa, 1991-05-24)
Seven case studies of SA (sustainable agriculture) in Canada were conducted in the late fall/early winter of 1990/91. The primary objective was to provide examples of innovative SA practices that have been implemented by ...
On-farm measurements of pH, electrical conductivity and nitrate in soil extracts for monitoring coupling and decoupling of nutrient cycles
(Biological Agriculture & Horticulture, 1993)