Abstract
The use of cover crops can bring multiple advantages to agricultural production systems and soil properties. The aim of this study was to evaluate the short-term effect of clover (Medicago hispida G.) and green peas (Psium sativum L.) as living covers on the soil moisture and yield of quinoa at the localities of Patasucro, Qaqas, and Ccanis in Ayacucho, Peru. We used a randomized complete block design considering clover, pea, and a control without coverage as treatments. Means were compared using Tukey’s Test (α 0.05). We observed significant differences in quinoa yield in Qaqas locality, where sites with cover crops exceeded the control by 0.4 t ha-1 (clover) and 0.29 t ha-1 (pea). Further, soil moisture was significantly superior under clover in the localities of Qaqas and Patasucro, with values 3.97% and 1.02%, respectively, higher than control. Soil moisture under pea and the control were not statistically different. It is argued that the yield improvements of quinoa occurred due to the conservation of soil moisture caused by the shading effect of the covers
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