EVALUACIÓN DEL EFECTO DE MICORRIZAS (Glomus, sp.) EN LA ASIMILACIÓN DE FÓSFORO EN Saccharum officinarum L., FINCA TULULÁ, SAN ANDRÉS VILLA SECA, RETALHULEU, GUATEMALA.

FLORES TZUY, KEVIN ALESANDRO (2023) EVALUACIÓN DEL EFECTO DE MICORRIZAS (Glomus, sp.) EN LA ASIMILACIÓN DE FÓSFORO EN Saccharum officinarum L., FINCA TULULÁ, SAN ANDRÉS VILLA SECA, RETALHULEU, GUATEMALA. ["eprint_fieldopt_thesis_type_engd" not defined] thesis, USAC.

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Abstract

SUMMARY This evaluation was carried out on the Tululá farm, San Andrés Villa Seca, Retalhuleu, owned by the Tululá S.A. sugar mill. with the objective of evaluating the use of endomycorrhizae of the genus glomus sp. together with doses of Dap phosphorous fertilizer, in sugar cane Saccharum officinarum L. and the effect on plant height, population up to 180 das and production in tons of cane per hectare (TCH) and tons of sugar per hectare (TAH). In addition, foliar samples were taken for laboratory analysis of the concentration of elements in the S. officinarum plant. In the establishment of the crop, the sugarcane variety S. officinarum, CG 02-163, was used. The type of phosphorous fertilizer used was DAP (18-46-0), and the experimental design used was completely randomized blocks with seven treatments and four repetitions, with four doses of phosphorous fertilizer and a single dose of endomycorrhizae. It was confirmed that the treatments composed of endomycorrhizae present a greater growth of the plants, in the initial stage of the crop, despite this, the analysis of variance carried out on the evaluated variables indicated that there is no statistical difference between the evaluated treatments, in the variables of production, population, plant height and diameter, which indicated that the treatments that presented mycorrhizae developed in a similar way to the treatment in which the usual dose of fertilizer was used. The foliar analyzes presented statistical significance at 30 and 60 days, for which reason Tukey's means tests were carried out, which indicated that the T4 Dap 120 kg/ha + Endomycorrhizae (glomus sp.) treatment presented greater availability of copper elements, calcium and phosphorus at 30 das, in the case of the treatment T5 Dap 160 kg/ha + Endomycorrhizae (glomus sp.), I present greater availability of the elements zinc, nitrogen, calcium and phosphorus at 30 das, and copper at 60 dds.

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