TY - JOUR AU - Wahab, Abdul H. AU - Lugo-López, Miguel A. AU - Woo, Bo-Myeong AU - Rosales, Franklin AU - Dehaney, Joseph PY - 1985/07/01 Y2 - 2024/03/29 TI - Alternatives to Bench Terraces on the Hillsides of Jamaica: I. Soil Losses JF - The Journal of Agriculture of the University of Puerto Rico JA - JAUPR VL - 69 IS - 3 SE - Articles DO - 10.46429/jaupr.v69i3.7353 UR - https://revistas.upr.edu/index.php/jaupr/article/view/7353 SP - 255-264 AB - A study aimed at determining appropriate soil conservation measures other than bench terracing was conducted in an Ultisol in Jamaica for 2 crop years. Mean annual soil losses for 2 consecutive years, from check plots planted to yellow yams (<em>Dioscorea</em> sp.) on individual hills without a hillside ditch, amounted to 192 t/ha/yr. Hillside ditches and intercropping yam with Irish potato decreased soil losses by 35%. A further reduction was achieved by intercropping yam with Irish potato on continuous contour mounds interrupted by a hillside ditch. The best erosion control was attained on yam plots intercropped with Irish potato on continuous contour mounds with a grass buffer strip. ER -