Seeding Rate Research for Irrigation

Seeding rates are always so different between farms. This document shows some research done about 15 years ago by crop type on irrigation. Info here
We generally seed on the high side as we don't want tillers =

• Better heading evenness and FHB spray timing
• Faster maturity
• More lodging risk

This year we scaled back use rates to 20-25 plants on irrigation on European barley: Esma, Sirish, SY Stanza, and Bill Coors 100 (USA) as well as TriCal Surge triticale to 25 plants (USA). These varieties tiller more than Canadian bred varieties.
One day we will have better recommendations by the variety, for now this is as far as we are!
I still like 32-40 plants on durum and 40 on all spring wheats.