Abstract
Currently, there are innumerable environmental technologies in the recovery of disturbed soils, including the use of leguminous plants that provide physical, chemical and biological improvements. The present investigation was based on evaluating the behavior of Sacha inchi (Plukenetia volubilis L. and Erythrina fusca Lour). under conditions of fertilization and densities and its contribution to the recovery of disturbed soils in the Monzón district. The method used was experimental in Design of Divided Plots (DPD) in Complete Blocks at Random 2 densities (DS1: 1666 and 1111 plants ha-1) x 4 (N1: 0-0-0, N2: 20-30-20, N3: 25-40-20 and N4: 40-60- 40) x 3 repetitions. The results indicate that the levels of fertilization N2, N3 and N4 produced a significant effect on the parameters of the vegetative characteristics of Plukenetia volubilis L, for the vegetative characteristics of Erythrina fusca evidence of AB interaction in the number of shoots at 5 months; the integration of both species achieved the improvement in the chemical properties of the soil. Like the reduction of aluminum by 30%, increase of p H by 5%, increase of potassium and phosphorus. Key words: Plukenetia volubilis L., Erythrina fusca Lour, fertilization, soil
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