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Entramado

versão impressa ISSN 1900-3803

Resumo

SANTACOLOMA-VARON, Luz Elena; GRANADOS-MORENO, Jairo Enrique  e  AGUIRRE-FORERO, Sonia Esperanza. Evaluation of agronomic variables, forage quality and content of condensed tannins of the legume Lotus corniculatus in response of biological and chemical fertilization in agro-ecological conditions of high Andean tropical Colombian. Entramado [online]. 2017, vol.13, n.1, pp.222-233. ISSN 1900-3803.  https://doi.org/10.18041/entramado.2017v13n1.25136.

In the savannah of Bogotá, 2600 m.s.n.m., were analyzed Agronomic variables; plant height, number and length of branches, total dry matter yield ha-1, and quality variables of forage, dry matter digestibility, raw protein, ethereal extract, Fiber Acid Detergent, Neutral Detergent Fiber calcium, as well as the condensed tannin content of the legume Lotus corniculatus, by means of a complete random design of four treatments applied to the soil Tl: no fertilizer; T2: biofertilizer; T3: chemical fertilization, and T4: biofertilizer with chemical fertilization, with three replicates per treatment. It was used analysis of variance (ANOVA) and comparison test ofTukey averages at 0.1%. The results indicate that the cultivation of L corniculatus responds very well to biofertilization because T2 exhibited the best performance for most changeful agronomic and forage quality while T4 showed the best results for number of branches and less content of condensed tannins. In dry matter digestibility T2 and T4 showed good behavior with highly significant differences with respect to Tl and T3; In fat and calcium contents, the best behavior was presented in T3 and Tl with highly significant differences. It is concluded that biofertilization favorably influences the edaphic characteristics, production and quality of the forage Lotus corniculatus, with better behaviors in the main variables evaluated in the study

Palavras-chave : Agronomic variable; forage quality; Dry matter digestibility crude protein; Neutral Detergent Fiber Acid Detergent Fiber condensed tannins.

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