Stand Establishment and Survivability
- Establishment: seed is able to germinate, emerge, and grow
- Establishment % = (Number of plants per square foot)
(Number of seeds planted per square foot) - Survivability: the number of plants that contribute to yield
- Survivability % = (Plant count after harvest)
(Plant count at 4 leaf)
- Also depends on pests, soil conditions, equipment, environment
Metering Accuracy
PROBLEMS SEEDING ABOVE THE OPTINUM RATE
5-7 PLANTS/FT2 OPTIMAL TARGET PLANT PRODUCTION
THE ADVANTAGES OF TARGETED PLANT POPULATION
- Good Weed Control
- Efficient use of resources
- Even maturity with uniform plant structure
- Reduced Intra-competition
- Reduced Sclerotinia incidence
- Reduced Lodging
SEEDING CONDITIONS
- Too shallow or too deep reduces emergence rates
- Verify your drill is level and the openers are well maintained. - Seed into moisture
- One Inch - Packing Pressure
- Wet Conditions: reduce pressure
- Dry conditions; increase pressure
SEED DEPTH
From left to right depth: .75", 1.25", 1.75"
All plots 233p at 78 seeds/m2
SEED DEPTH IMPACT AT FLOWERING
SEED DEPTH IMPACT ON YIELD
Seed Depth & Consistency
Economic Opportunity for Improved Survivability
CANOLA TARGET PLANT POPULATIONS
- Target 5-7 plants/ft2 (10 seeds/ft2)
- What's your survivability? (plant counts)
- What's your seed weight (TSW or TKW) - Seed into moisture
- 1 - 1 1/4" has shown to be most consistent - Is your equipment set properly?
- Check seed depth and seeds per foot
Andrea De Roo
Crop Intelligence Agronomist
Derooandrea@southcountry.ca (639) 906-7066