Symposium II. 1. Mechanization technologies for the conservationist agriculture. Guidelines oriented to the conservation and optimum development of the environmental resources at Zulia region, Venezuela
Alvarez, R., Universidad del Zulia: LUZ, Maracaibo (Venezuela). Facultad de Agronomía. Departamento de Ingeniería, Suelos y Aguas ; Paiva Echegaray, I. (Coordinador)
Efficiency of some conservationist practice in the control of hydric erosion in soils under horticultural crop production at Burbusay upper watershed, Trujillo State, Venezuela
Symposium II. 2. Mechanization technologies for the conservationist agriculture';. Crops direct sowing on natural covers. Experiences in Turén area, Portuguesa State, Venezuela
Centeno Suárez, A., Universidad Central de Venezuela, Maracay (Venezuela), Facultad de Agronomía. Departamento e Instituto de Ingeniería Agrícola ; Paiva Echegaray, I. (Coordinador)