Claim · model-written summary
Kernel number per square meter did not change with late planting.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- late plantinge0
- Outcome
- kernels per square metere0
- Direction
- no changee0
Verbatim
e0“Yield loss due to late planting was associated with a 7% decrease in kernel weight and no change in kernels per square meter.”
t0“Corn”
Title
Agronomic Responses of Corn to Planting Date and Plant Density
Ryan J. Van Roekel; Jeffrey A. Coulter Agronomy Journal 2011. doi:10.2134/agronj2011.0071
Other claims from this paper (9)
- Intervention effect A two-week planting delay did not affect corn yield or net return to seed cost.
- Intervention effect A four-week planting delay lowered corn yield by 15%.
- Intervention effect A four-week planting delay lowered corn net return to seed cost by 18 to 30%.
- Association Late planting was associated with a 7% decrease in corn kernel weight.
- Association Plant-density responses of stalk diameter, intercepted radiation and leaf area index at silking did not differ by planting date.
- Association Plant-density responses of lodging, grain yield and components did not differ by planting date.
- Association Plant-density responses of net return to seed cost did not differ by planting date across 25 economic scenarios.
- Association Grain yield showed a quadratic-plateau response to corn plant density, maximizing at at least 81,700 plants per hectare.
- Recommendation The authors concluded that increased plant density may not offset corn yield and economic losses from late planting.