Claim · model-written summary
Early seeding increased rape seed yield by an average of 225 kg/ha over late seeding.
- Taxon
- RAPE
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- early seeding date (late April to early May)e5
- Outcome
- seed yieldse5
- Direction
- increasede5
- Value
- 225 kg/hae5
- Comparator
- late seeding date (late May)e5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e5“The early seeding date (late April to early May) increased seed yields an average of 225 kg/ha over the late seeding date (late May)”
t0“COMPOSITION OF RAPE”
Title
YIELD AND CHEMICAL COMPOSITION OF RAPE IN RESPONSE TO NITROGEN, PHOSPHORUS AND POTASSIUM
S. C. SHEPPARD; T. E. BATES Canadian Journal of Soil Science 1980. doi:10.4141/cjss80-019
Other claims from this paper (7)
- Intervention effect Rape seed yield was maximal at 100 kg N/ha of broadcast N, independent of seeding date or banded fertilizer.
- Intervention effect Response to 7 kg P/ha banded or 25 kg P/ha broadcast occurred when soil P was below 10 μg/cc.
- Intervention effect Very little rape response to broadcast K occurred at a soil test of about 60 μg K/cc.
- Intervention effect Band placement of fertilizer increased rape seed yield by an average of 55 kg/ha over comparable treatments without banded fertilizer.
- Observation The critical rape leaf P concentration was less than 0.2%.
- Association Leaf N, P and K concentrations of rape were influenced by nitrogen supply.
- Observation The critical rape leaf N concentration varied considerably.