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Sloping Agriculture Land Technology (SALT)

The sloping agricultural land technology (SALT) is a farming system developed by the Mindanao Baptist Rural Life Centre in the southern Philippines during the 1970's. Basically attuned to the production needs of small scale hill farmers. This agroforestry technology has gained wide popularity in Asia because it is culturally appropriate, economically sound and is designed to limit soil erosion. SALT is a technology package of soil conservation and food production that integrates several soil conservation measures (Tacio, 1989; Evans, 1992). Basically, the SALT method involves planting field crops and perennial crops in bands 3-5 m wide between double rows of nitrogen fixing shrubs and trees planted along the contour. These minimize soil erosion and maintain the fertility of the soil. SALT helps considerably in the establishment of a stable ecosystem, the double hedge rows of leguminous shrubs or trees prevent soil erosion. Their branches are cut every 30-45 days and incorporated back into the soil to improve its fertility (Palmer, 1991). The crops provide permanent vegetative cover which aids the conservation of both water and soil.

 
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