Evaluation of the effect of the application of two agricultural amendments, in the maintenance of a forage mixture composed of perennial raygrass (Lolium perenne) and white clover (Trifolium repens)

Antonio Ramiro Puenayan Irua — 2025-06-09

This research aimed to evaluate the application of two agricultural amendments for maintaining a forage mixture on the Esperanza property, Municipality of Cumbal, Department of Nariño-Colombia, located 3155 meters above sea level. The experimental design was completely randomized blocks (DBCA) with five treatments and three repetitions. The amendments evaluated in the experiment were: T1: control without application of amendments; T2: (33 % CaO y 15 % MgO), 1.0 t ha^-1; T3: (33 % CaO y 15 % MgO), 1.5 t ha^-1; T4: (40 % CaO + 1.5 % MgO + 9 % P205 + 6 % SiO2 y 1% Mn), 0.5 t ha^-1; T5: (40 % CaO + 1.5 % MgO + 9 % P205 + 6 % SiO2 y 1 % Mn), 1.0 t ha^-1. The variables evaluated were pH, nutrients, grass height (cm), number of leaves, and MS in kg ha-1. For statistical analysis, variance and Tukey's test were performed for comparison between means. In the study of the variables of pH, nutrients, number of leaves, and dry matter, no significant statistical differences were found. The height evaluation of the forage mixture presented significant statistical differences, where T5 was the best.

Implementation of a Voisin grazing system and organization of reproductive records at "La Aldea" farm

Luis Fernando Tatés Hernández — 2025-06-01

The present investigation was carried out in the province of Carchi, canton Tulcán, Urbina parish, in the hamlet of Chapués on the “La Aldea” farm, this property is dedicated to the activity of livestock production of milk, it has an area of 20 hectares . The objective of it was: Evaluate the implementation of a Voisin Grazing System and the organization of reproductive records. For this, 7 hectares were allocated whose initial diagnosis was 7 unmanaged pastures of different sizes, where 17 cows graze with an average production of 12 liters per cow. The amount of existing grass and the reproductive parameters were unknown, since there was no reproductive record kept and no paddock management. After measuring the available dry matter (DM) using a pasture measuring plate, an amount of 1168.20 kg DM per hectare was initially obtained. The average live weight of the cows was 467 kg, with this, it was determined that, in 7 hectares, the 17 cows can remain eating for 5 days. This is given that DM consumption per cow is 3% of live weight (LW).

Revista Amazónica. Ciencia y Tecnología

Evaluation of the effect of the application of two agricultural amendments, in the maintenance of a forage mixture composed of perennial raygrass (Lolium perenne) and white clover (Trifolium repens)

Implementation of a Voisin grazing system and organization of reproductive records at "La Aldea" farm