Estiércol de vacuno estabilizado y daño por boro en lechuga (Lactuca sativa L.) cv. del río, en el valle de Lluta, Chile

Abstract

At the Valley of Lluta, XV Region of Arica and Parinacota, Chile, the cultivation of lettuce (Lactuca sativa L.) cv. del río, evidences significant differences in several factors: crop yields, plant weight, polar and equatorial diameters, nitrate and boron content; as well as damages induced by high concentration levels of salts and boron, naturally present in the water and cultivation soil of this valley. Here, are informed the results of a mitigation study of boron induced damages on a cultivation of lettuce (Lactuca sativa L.) cv. del río en el valle de Lluta, using amendments of stabilized cow manure as a mitigating agent; including a witness cultivation subplot, without cow manure amendment and three cultivation subplots differentiated with 25 kg, 50 kg and 100 kg of cow manure amendments.The uses of the stabilized cow manure in the cultivation of lettuce cv del rio, yielded a significant increase in the content of organic matter in the cultivation soil and a moderate subsiding of the damages induced by the high boron and salt contents on the lettuce plants.