Publication Date
1997
Description
An experiment was conducted to evaluate the effect of different cutting regimes on productivity and complementarity between oat and vetch in a mixture. The treatments were allocated in a factorial design on a split-split-plot disposition: they were 3 cutting frequencies (each 35, 70 and 105 days), 3 cutting heights (2, 8 and 14 cm above ground) and 3 crops (oat, vetch and the 1:1 mixture). Forage production (dry matter per hectare) and complementarity between species Relative Yield Total (RYT) were evaluated. The highest forage production (p- 0.05) was obtained with a cutting height of 2 cm and a frequency of 70 days, both in mixture and pure crops. Mixture production was significantly higher than pure stands (p- 0.01) and RYT was higher than unity (p- 0.01) under all defoliation regimens. Defoliation treatments did not modify RYT. In these experimental conditions, cutting frequency and cutting height affected forage production but did not modify complementarity between species.
Citation
Arzadun, M J.; Vallejos, M H.; and Piersanti, M M., "Effect of Frequency and Intensity of Defoliation on Oat- Vetch Mixture" (2024). IGC Proceedings (1997-2023). 66.
https://uknowledge.uky.edu/igc/1997/session22/66
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Frequency and Intensity of Defoliation on Oat- Vetch Mixture
An experiment was conducted to evaluate the effect of different cutting regimes on productivity and complementarity between oat and vetch in a mixture. The treatments were allocated in a factorial design on a split-split-plot disposition: they were 3 cutting frequencies (each 35, 70 and 105 days), 3 cutting heights (2, 8 and 14 cm above ground) and 3 crops (oat, vetch and the 1:1 mixture). Forage production (dry matter per hectare) and complementarity between species Relative Yield Total (RYT) were evaluated. The highest forage production (p- 0.05) was obtained with a cutting height of 2 cm and a frequency of 70 days, both in mixture and pure crops. Mixture production was significantly higher than pure stands (p- 0.01) and RYT was higher than unity (p- 0.01) under all defoliation regimens. Defoliation treatments did not modify RYT. In these experimental conditions, cutting frequency and cutting height affected forage production but did not modify complementarity between species.
