Bioactivation of Agroindustrial By-Products Subjected to Aerobic Processes of Organic Transformation.

The objective of the present study was to transform the waste generated by local  cotton agribusinesses, grain crushing, and chicken  eggs producing farms, in agricultural inputs with high added value, with feasibility to improve the chemical, physical and biological soil. We studied four combinations of waste from the five most abundant in agro-industrial by-products around the city, having as nitrogen source (N) chicken manure (EG), and as sources of carbon (C):  burs, sticks,  fiver trash (CA),  cotton motes seed  (LA), as well as carbon from ovens (CF), earth filter (TF), and residuals from the oil purification plant. In order  to accelerate the  mineralization process of SOM during composting, three  biocatalysts  were applied to each treatment, each of them with different action behavior (B1, B2, B3). Furthermore the  temperature of each   window was systematically monitored in  degrees  Celsius (° C). Also, pH, moisture (%) and volume (m3) were  monitored. The 16 treatments were arranged in three replications on experimental design randomized block. The obtained data base was analyzed in terms of variance and multiple comparisons of means by Tukey at 5% significance. The biocatalysts tested had significant influence increases OM and nutrients contained in different  composted byproducts combinations. The biocatalyst B3 applied to EG-CA combination, when applied more frequently to such  combination resulted in increased quantity of  nutrients for the composting. The applied quantities of biocatalysts, under  different  residues combinations, showed significant influence on the temperature (° C), and the pH. However, no significant  changes in volume (m3) and the granulometry of the waste composted were observed.