BIOFERTILIZERS IN MEXICAN LIME (Citrus aurantifolia (Christm.) Swingle): ARBUSCULAR MYCORRHIZAL FUNGI AND Azospirillum brasilense IN GREENHOUSE

<p><strong>Background:</strong> The majority of terrestrial plants have evolved in symbiosis with beneficial microorganisms, which help them acquire minerals that are scarce soil, such as phosphorus and some cases nitrogen. Thus, the development use biofertilizers based on microorganisms is important for partial or total replacement chemical fertilizers. arbuscular mycorrhizal fungi (AMF) <em>Azospirillum</em> <em>brasilense </em>helps to boost Mexican lime (<em>Citrus aurantifolia</em>) plant growth, making more vigorous productive. <strong>Objective: </strong>To evaluate effect growth a greenhouse. <strong>Methodology: </strong>An experiment was established under greenhouse conditions completely randomized bifactorial design: (A) microorganism four levels: consortium HMA Cerro del Metate; <em>Rhizophagus intraradices</em> (Ri); <em>Azospirillum brasilense</em> (Ab); without microbial inoculum (WI); (B) fertilization N-P-K (nitrogen-phosphorus-potassium) high (180-180-180 kg ha<sup>-1</sup>); intermediate (90-90-90 low (45-45-45 ha<sup>-1</sup>) fertilization. In total, 16 treatments seven replicates were performed; microbiological response variables evaluated an analysis variance (ANOVA) Tukey’s multiple comparison means tests. <strong>Results</strong>: Significant effects (Tukey, <em>P≤0.05</em>) Metate found, followed by <em>R.</em> <em>intraradices </em>and lastly <em>A. brasilense,</em> proved these promoted growth. Mycorrhization significantly increased (<em>P≤0.05</em>) rate, well dry biomass, observing colonization from 30%. Fertilization only showed significant interaction brasilense</em>. <strong>Implications</strong>: native preferably consortia may better adaptability than commercial ones, can be explained part found this study. <strong>Conclusion</strong>: positive inoculation AMF, showing greater other treatments.</p>