Microbiological parameters in agricultural substrates produced with different organic waste
DOI:
https://doi.org/10.29076/issn.2528-7737vol19iss50.2026pp132-140pKeywords:
compost, vegetable cultivation, quality indicators, microbiological parametersAbstract
Some of the microbiological parameters suitable for assessing biological activity are basal respiration and microbial biomass, as they respond rapidly to changes in conditions and are important properties used as quality indicators in soils. This study proposes evaluating these two properties in mixtures of organic materials for use as quality indicators in the preparation of agricultural substrates. Mixtures were prepared with six different organic wastes in two proportions, using soil/sawdust and sand/sawdust as bases. Chemical and microbiological parameters were evaluated in each mixture. The pH and conductivity values obtained were used as exclusion criteria, comparing them with those accepted in the literature. A statistical correlation analysis and a principal component analysis were performed, determining that the mixtures with 40% coffee grounds (soil or sand base), 30% paper mill sludge (soil base), 20% lignite, and 5% dolomite (sand base) present adequate conditions for the development of vegetable crops. crops
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