Implications of erosion control practices on soil moisture and productivity of western Iowa soils - Bernal Osorio, Alfredo (Ames, Iowa, USA : Iowa State University, 1972)
Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of Doctor of Philosophy.
Keywords: EROSION DE SUELOS; PRODUCTIVIDAD DEL SUELO; SUELOS -- ESTADOS UNIDOS