Abstract

VENTURA RIOS, Joel et al. Yield of white clover associated with ovillo grass at different grazing frequencies. Rev. Mex. Cienc. Agríc [online]. 2020, vol.11, n.spe24, pp.1-12.  Epub May 07, 2021. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v0i24.2353.

The objective of the study was to evaluate the behavior of white clover associated with ovillo grass at four grazing frequencies. The treatments were fixed frequencies of 28 d in spring-summer and 35 d in autumn-winter and when the grassland intercepted 95 and 100% of intercepted radiation. Treatments were assigned to experimental units according to a randomized block design in divided plots with three replications. The variables evaluated were dry matter yield (DMY), botanical and morphological composition (BMC, %), growth rate (GR), intercepted radiation (IR, %) and height. The frequency of grazing during the winter modified the accumulation of dry matter (3885 kg DM ha-1; p< 0.05). The GR was higher in the grazing frequency at 28 d in spring (70 kg DM ha-1 d-1; p< 0.05). The highest height was reached at 28 d in the summer (26 cm; p< 0.05). Grazing frequency did not affect Grassland yield, except in winter when the best yield was obtained by grazing at 95% IR. The IR and the height of the plant are indicative of the dry matter yield and optimal harvest time.

Keywords : grass; grazing frequency; legume.