Browsing by Autor "Mabel Orellana"
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Item type: Item , Effects of conservation and conventional tillage systems after land clearing on soil properties and crop yield in Santa Cruz, Bolivia(Elsevier BV, 1996) R. G. Barber; Mabel Orellana; Francisco B. Navarro; Olga Díaz Rubio; M.A. SorucoItem type: Item , Effects of deep tillage and fertilization on the population, growth and yield of soya during an exceptionally wet season on a compacted sandy loam, Santa Cruz, Bolivia(Elsevier BV, 1990) Mabel Orellana; R. G. Barber; Olga Díaz Rubio