Effect of poultry manure on germination and biometrics of H. sabdariffa in Loreto, Peru | Effect of poultry manure on germination and biometrics of H. sabdariffa in Loreto, Peru.

English. The objective of this study was to evaluate the effect of different doses of poultry manure (5, 5.5, 6.5 and 7.5 kg/m2) on agronomic parameters such as germination, number of flowers, yield per plant, height, stem diameter, number of shoots and number of leaves, under the agroclimatic conditions of the Loreto region, Peru. The experiment was developed using a completely randomized block design, using seeds from the forest nursery of the Instituto de Educación Superior Tecnológico Público El Milagro. The results revealed that the dose of 7.5 kg/m2 of poultry manure significantly favored germination (87%), as well as a consistent increase in plant height, stem diameter and number of leaves during the nine evaluations carried out. However, the treatment with 6.5 kg/m2 of poultry manure presented the highest yield per plant (1.28 kg/plant). On the other hand, the highest number of shoots and flowers was recorded with the 5 kg/m2 treatment. The correlations observed indicated significant relationships between yield and number of flowers (r = 0.80), height and number of leaves (r = 0.74), height and stem diameter (r = 0.87), as well as between stem diameter and number of leaves (r = 0.77). In conclusion, an application rate of 6.5 kg/m2 of chicken manure is a viable option if our goal is to maximize yield without compromising the physiological characteristics of the crop in conditions similar to those found in the Loreto region and other regions with similar soil and climate conditions.

Spanish; Castilian. The objective of this study was to evaluate the effect of different doses of poultry manure (5, 5.5, 6.5 and 7.5 kg/m2) on agronomic parameters such as germination, number of flowers, yield per plant, height, stem diameter, number of shoots and number of leaves, under the agroclimatic conditions of the Loreto region, Peru. The experiment was developed using a completely randomized block design, using seeds from the forest nursery of the Instituto de Educación Superior Tecnológico Público El Milagro. The results revealed that the dose of 7.5 kg/m2 of poultry manure significantly favored germination (87%), as well as a consistent increase in plant height, stem diameter and number of leaves during the nine evaluations carried out. However, the treatment with 6.5 kg/m2 of poultry manure presented the highest yield per plant (1.28 kg/plant). On the other hand, the highest number of shoots and flowers was recorded with the 5 kg/m2 treatment. The correlations observed indicated significant relationships between yield and number of flowers (r = 0.80), height and number of leaves (r = 0.74), height and stem diameter (r = 0.87), as well as between stem diameter and number of leaves (r = 0.77). In conclusion, an application rate of 6.5 kg/m2 of chicken manure is a viable option if our goal is to maximize yield without compromising the physiological characteristics of the crop in conditions similar to those found in the Loreto region and other regions with similar soil and climate conditions.