Resumo

WILCHES ORTIZ, Wilmar Alexander et al. Uso de Micorrizas Arbusculares en dos variedades de caña de azúcar para producción de panela en Suaita-Santander, Colombia. Siembra [online]. 2022, vol.9, n.1, e3802. ISSN 2477-8850.  https://doi.org/10.29166/siembra.v9i1.3802.

Sugarcane for panela production in Colombia is limited due to problems of planting material provision and plant nutrition.Arbuscular Mycorrhizal Fungi (AMF) help the exchange and mobility of nutrients in the plant, improving crop production. The objective of this study was to evaluate AMF in two varieties of sugarcane for panela production in the town of Suaita, Santander. Four treatments were evaluated: T1: Acaulospora mellea, T2: Rhizoglomus irregulare, T3: Control 1(without inoculation) and T4: Control 2 (100% of chemical fertilization) in the varieties CC 93-7711 and CC 93. -7510A. Treatments were set up in complete randomized block design with three replications. Plant height, stem diameter, chlorophyll content, nutrient absorption and dry matter content were evaluated in this study. Significant differences were found in the variety CC93-7711 for absorption of N, S, Fe, and Mn, being T2 the best treatment, and for chlorophyll content at 15 months after transplant the best treatments were T1 and T2. In the variety 93-7510, significant differences were found at 8 months after transplanting for plant height being T1 the best treatment, and for total chlorophyll T2. At 15 months after transplant the best treatment was T2 for Mn absorption. The two varieties at 15 months after transplant presented the highest values for T1 and T2 compared to the two controls for plant height, stem diameter, total chlorophyll, and dry matter content. The correlation analysis was positive for A. mellea with the absorption of Na, Cu, Mn, S, N and P, and for Rhizoglomus irregulare with absorption of Mg, Fe and Ca. The AMF can replace 50% of the synthetic fertilization, making it more effective with higher dry matter content.

Palavras-chave : non-centrifuged sugar; sugarcane; Acaulospora mellea; Rhizoglomus irregulare; nutrition.

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