One effort to improve the chemical properties of peat soils and the growth of rubber trees is by planting an legume cover crop Mucuna bracteata. The research aims to determine the chemical properties of the soil and the growth of rubber trees in peat soils without overgrown Mucuna bracteata with peat soils ex overgrown Mucuna bracteata and peat soil that overgrown Mucuna bracteata. The research…