Key Points
- Over two years, the highest yields for a forage ryegrass were from row spacings of 15 or 30cm
- For forage ryegrass, sowing rates of 6-12kg/ha were best for 30cm rows and 4-6kg/ha were best for 15cm rows
- Turf ryegrass yields were highest from 15cm rows in both years of the trial
- Yield response to sowing rates varied between years for turf ryegrass but the 5 or 10kg/ha were the best rates in each year
- The use of 45cm rows not only resulted in lower yields but also increased the weed pressure later in the season
- In these trials, there were no differences in ease of harvest however, growers have reported increased problems when harvesting wider rows