References
- Hunt , I. V. 1962 . Productivity, persistence and response to nitrogen of Italian ryegrass varieties . J. Br. Grassld. Soc. , 17 : 125 – 129 .
- Hunt , I. V. 1971 . Productivity of Italian and perennial ryegrass mixtures . J. Br. Grassld. Soc. , 26 : 41 – 49 .