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- Title
DIGERIDOS DE FERMENTACIÓN DE ESTIÉRCOL: CONSIDERACIONES PARA SU RECOMENDACIÓN EN AGRICULTURA DE TRASPATIO.
- Authors
Cruz-Hernández, J.; Águila-Muñoz, J. C.; Rojano-Hernández, R.; Morales-Jiménez, J.
- Abstract
Making and using fermentation digestates or "biols" as liquid organic fertilizers (LOFs) is recommended in backyard agriculture without any control; however, these can contain microorganisms that are harmful to human health and cause phytotoxicity, so that quality parameters should be measured before their use. A physical-chemical, microbiological and phytotoxic characterization was performed (through germination bioassays) with rabbit, equine, bovine and ovine manure digestates from backyards, processed during 45 days in Batch type digestors of 70 L capacity. In compound samples, eleven physical-chemical parameters were determined by triplicate, and four microbiological variables 45 days after the process started. The digestates reached acid pH (5.38-5.55) and a C/N relation of 1.37-1.77. Coliforms were observed in the amount of 4 to 7/10 mL, with a higher content in bovine manure. The levels of phytotoxicity were high to moderate, depending on the manure, which suggests a longer period of fermentation should be used to recommend their use as FOL safely for crop production.
- Publication
Agro Productividad, 2017, Vol 10, Issue 7, p3
- ISSN
2448-7546
- Publication type
Article