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Revista mexicana de ciencias pecuarias
On-line version ISSN 2448-6698Print version ISSN 2007-1124
Abstract
PEDROZA-PARGA, Ernesto Herssaín et al. Effect of soil cover on the growth and productivity of buffel grass (Cenchrus ciliaris L.) in degraded soils of arid zones. Rev. mex. de cienc. pecuarias [online]. 2022, vol.13, n.4, pp.866-878. Epub Nov 11, 2022. ISSN 2448-6698. https://doi.org/10.22319/rmcp.v13i4.5963.
The objective of this study was to evaluate the use of corn crop residues as mulch and its impact on soil moisture content and the establishment, development and productivity of buffel grass (Cenchrus ciliaris L). A randomized block design with three replications was used. The treatments were: sowing of 10 kg ha-1 of buffel grass seed (Bs); vegetation cover on soil with 10 t ha-1 of corn crop residues (Vc); Bs + Vc combination; and control (no grass sowing and no vegetation cover). The Bs + Vc treatment maintained a higher soil moisture content (P≤0.05), with 13.8 % vs 10.6 % of the control. Consequently, the number of grass plants m-2, buffel grass cover, plant height, chlorophyll index and dry biomass production had a tendency to respond better, with values of 518.5 plants m-2, 51.23 %, 31.8 cm, 162 and 167.8 g m-2, respectively, and they exhibited a tendency toward a statistically similar response as to this treatment when applied separately (Vc and Bs). Photosynthesis (µmol s-2s-1), stomatal conductance, transpiration (mmol H2O m-2 s-1), and water use efficiency were not affected by any of the treatments in this study, their response being equivalent to that of the control.
Keywords : Plant stress; Soil moisture; Pasture; Extensive livestock farming.