Resumo

RODAS-GAITAN, Heberto Antonio et al. Stability of static biodynamic compost from regional crop residues. Rev. Mex. Cienc. Agríc [online]. 2019, vol.10, n.1, pp.187-195. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v10i1.1337.

The preparation of composts from agricultural waste allows generating an alternative in the production of organic fertilizers. Traditionally the constant turning, makes this system onerous, so the production of static composts associated with the application of biodynamic preparations (PB), promotes the development of sustainable alternatives. The objective of the present work was to evaluate the inclusion of PB (fundamental basis of biodynamic agriculture) in static compost of prickly pear and moringa remains as main substrates, establishing an experiment with a completely randomized design and bifactorial arrangement, in Zuazua, Nuevo Leon. Four treatments were considered: T1, prickly pear+PB; T2, moringa+PB, T3, prickly pear and T4, moringa. Also, the stability of the compost was evaluated during a year; through, of the behavior of 16 variables (physical, chemical and biological). The significant interactions showed that the use of prickly pear and application of PB in the compost, promoted in general a greater mineralization, temperature and lower humidity. According to the statistical significance of the main factors, in PB treatments the maximum values of UFC of bacteria were found and in treatments with prickly pear the highest values of organic matter, C:N ratio and hydrogen. The concentration of macro- and microelements increased in each treatment at the end of the evaluated period, with the exception of N, K and Cu. The decomposition of the main regional substrates used in the static piles was favored by the inclusion of PB.

Palavras-chave : Moringa oleifera Lam., Opuntia ficus indica L. Mill.; biodynamic agriculture.