Efecto de la relación carbono/nitrógeno en el tiempo de descomposición del abono de cuy (Cavia porcellus), enriquecido

Abstract

The present investigation was carried out in the Province of Cotopaxi, Canton Salcedo, Parish of Mulliquindil, Barrio Pungahuito, in the property of Mr. Arturo Barreros. The land is located at an altitude of 2990 msnm, its coordinates are: South latitude 1 ° 2'13.56 '' and west latitude 78 ° 34'59.999''. This research was carried out in order to transfer a new agricultural alternative in terms of the composting of guinea pig manure, in the shortest possible time through the application of a nitrogen source in this case were tested different doses of Ammonium Nitrate and Urea To see if these salts or fertilizers could shorten the decomposition time of the fertilizer, maintaining an estimated C / N ratio of 15: 1 and 20: 1. Therefore 4 treatments and a control were made without the application of any product, to determine the best among them. The following treatments were used: T1 (Ammonium Nitrate 1.97 kg + 0.38 m3 of guinea-pig manure), T2 (Ammonium Nitrate 4.21 kg + 0.38 m3 guinea-pig manure), T3 1.43 kg + 0.38 m3 guinea pig fertilizer) T4 (Urea 3.07 kg + 0.38 m3 guinea pig fertilizer) and the Control (guinea pig fertilizer). At the end of the investigation, it was possible to conclude that the C / N ratio is not a determining factor in the fertilizer that establishes the one that is already totally decomposed, but it is the one that asserts that there is organic matter present, ready to be available minerally as Source of nitrogen absorbable by the vegetable. In addition, it was possible to accelerate the time of decomposition of the manure compost in the composting through the application of nitrogen sources, being the T4 treatment (Urea 3.07 kg + 0.38 m3 of guinea-pig manure), which presented the estimate Of the C / N ratio 15: 1 together in its best decomposition time around days 28 to 40, for application in crops with optimal texture and odor. Finally, through the laboratory analyzes, the amounts of macro and micro nutrients present in the guinea pig fertilizer could be obtained during the investigation.