Issues to take into consideration for determining planting time
At flowering barley can tolerate a 1°C lower frost than wheat. But a frost of -4°C at head height during flowering can cause between 5-30% yield loss. A frost of -5°C or lower at head height can cause 100% yield loss.
- early planting generally has higher yield potential
- planting too early can result in the crop running quickly to head if conditions are warm and lush in late autumn and early winter
- hot, dry temperatures during spring can reduce grain fill period and affect yield and grain size
- a strongly negative SOI (southern oscillation index) is considered an indicator of late frosts.
Later planting and later flowering generally results in declining yield potential due to higher temperatures furing grain fill.
Suitability of varieties to different planting areas for feed grain production
Sowing times
(*** - most suitable)
