Publication Date
1997
Description
The objective of this study was to determine the effect of N application rate and timing on forage production when an annual ryegrass (Lolium multiflorum Lam.) and red clover (Trifolium pratense L.) mixture is overseeded on a warm-season grass sward. Nitrogen was applied soon after planting in the fall at rates of 0, 38, 76 and 114 kg ha-1 and in late February at 0, 56 and 112 kg ha-1. Fall and winter N rates were included in a 4 x 3 factorial arrangement. Forage production was measured monthly from February through June and botanical composition was determined for each treatment at each harvest. Application of N in either season reduced total production from the clover component but the effect was less severe if fall N did not exceed 76 kg ha-1 and N was not applied in winter. Applied N from both seasons had to total at least 170 kg ha-1 before forage production exceeded that from the treatment with no N applied. Early season ryegrass production was minimal unless fall N rate was 76 kg ha-1 or greater. Results indicate application of 76 kg ha-1 only in the fall would provide for early season production from ryegrass while maintaining relatively vigorous clover production.
Citation
Alison, M W., "Effect of Nitrogen Input on Performance of a Sodseeded Temperature Legume-Grass Mixture" (2024). IGC Proceedings (1993-2023). 7.
https://uknowledge.uky.edu/igc/1997/session22/7
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Nitrogen Input on Performance of a Sodseeded Temperature Legume-Grass Mixture
The objective of this study was to determine the effect of N application rate and timing on forage production when an annual ryegrass (Lolium multiflorum Lam.) and red clover (Trifolium pratense L.) mixture is overseeded on a warm-season grass sward. Nitrogen was applied soon after planting in the fall at rates of 0, 38, 76 and 114 kg ha-1 and in late February at 0, 56 and 112 kg ha-1. Fall and winter N rates were included in a 4 x 3 factorial arrangement. Forage production was measured monthly from February through June and botanical composition was determined for each treatment at each harvest. Application of N in either season reduced total production from the clover component but the effect was less severe if fall N did not exceed 76 kg ha-1 and N was not applied in winter. Applied N from both seasons had to total at least 170 kg ha-1 before forage production exceeded that from the treatment with no N applied. Early season ryegrass production was minimal unless fall N rate was 76 kg ha-1 or greater. Results indicate application of 76 kg ha-1 only in the fall would provide for early season production from ryegrass while maintaining relatively vigorous clover production.
