Evaluación de materia orgánica en sedimento de piscinas camaroneras tratado con biodegradadores y arado como reductores de nivel.

Abstract

Intensive production systems in shrimp farming manage high animal populations with greater control and complete dependence on feed. This results in a high consumption of balanced feed which increases the content of organic matter (feces, uneaten feed and detritus) that accumulates in the sediments during the culture cycle causing negative effects on shrimp pond soil. The present titration work seeks to evaluate the presence of organic matter in aquaculture sediment treated with biodegraders and plowing, as level reducers. The experimental study was developed using a factorial experiment with a 2x3 fractional randomized block design, with two study factors, soil tillage (T1: Tilled, T2: Not tilled), and biodegraders (T1: Without biodegrader, T2: Biodegrader 1, T3: Biodegrader 2, T3: Biodegrader 2, T3: Biodegrader 3): Biodegrader 1, T3: Biodegrader 2); forming 6 combinations of treatments which were replicated 4 times and in this way obtaining the percentage of OM of each sample through the ignition method and the pH levels with the pH meter. The results obtained indicate that there are practical differences in the decrease of OM percentage and pH levels, both in the study factors of plowing (allowing us to observe a greater effect in plowed soil), biodegraders (where a greater decrease is evidenced in the treatment with biodegrader 2) and the interaction of both (the plowed soil treatment without biodegrader 2 evidences a greater effect); in spite of this, no statistical differences were evidenced. It is concluded that plowing and biodegraders do not influence the percentage of OM and pH levels.