TY - JA AU - MacRae,R.J. AU - Henning,J. AU - Hill,S.B. AU - Mehuys,G.R. TI - Agricultural science and sustainable agriculture: a review of the existing scientific barriers to sustainable food production and potential solutions U1 - 92-000037 PY - 1989/// KW - Ecology KW - Land use KW - Research KW - Research policies T2 - Biological Agriculture and Horticulture ER -