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1. Agronomic and economic performance of conservation-tillage

by Jones, O.R | National Symposium on Conservation Systems. Hyatt Regency Chicago, Illinois Center (USA). 14-15 Dec 1987 | Harman, W.L [coaut.] | Smith, S.J [coaut.].

Source: Optimum erosion control at least cost: proceedings of the national symposium on conservation systems. St. Joseph, Mich. (USA). American Society of Agricultural Engineers. 1987. p. 332-341Material type: book Book Publisher: 1987Collection: AGRIS CollectionAvailability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library [Call number: 89-013424] (1).

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2. Water quality impacts of feedlot manure: a progress report of 1992 irrigated corn runoff water quality and economics of manure use

by Harman, W.L | Marek, T.H [coaut.] | Regier, G.C [coaut.] | Sweeten, J.M [coaut.].

Material type: book Book Publisher: 1993Collection: AGRIS CollectionAvailability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library [Call number: 96-014747] (1).

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Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org