Claim · model-written summary
Nitrogen agronomic efficiency was greatest at 45 kg N ha −1 with chisel tillage.
- Taxon
- Brassica carinata
Brassica carinatat0 - Treatment
- chisel methode0
- Outcome
- Nitrogen agronomic efficiencye0
- Direction
- greateste0
- Value
- 45 kg N ha −1e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen agronomic efficiency was greatest at 45 kg N ha −1 for the chisel method and 95 kg N ha −1 for disk and no‐tillage.”
t0“rainfed Brassica carinata”
Title
Ramdeo Seepaul; Shivendra Kumar; Sudeep Sidhu; et al. Agronomy Journal 2023. doi:10.1002/agj2.21315
Other claims from this paper (13)
- Observation Maximum soil cone index occurred at 15 cm under no tillage and at 20 cm under chisel and disk tillage.
- Observation The hardpan restricted carinata taproot growth.
- Observation The hardpan promoted lateral root growth.
- Intervention effect Subsoiling and nitrogen improved carinata growth versus no tillage.
- Association Seed yield response to nitrogen rate depended on tillage method.
- Observation Maximum agronomic seed yield under chisel tillage occurred at 134 kg N ha −1.
- Observation Maximum agronomic seed yield under disk tillage occurred at 128 kg N ha −1.
- Observation Maximum agronomic seed yield under no tillage occurred at 125 kg N ha −1.
- Observation Nitrogen agronomic efficiency was greatest at 95 kg N ha −1 with disk tillage.
- Observation Nitrogen agronomic efficiency was greatest at 95 kg N ha −1 with no tillage.
- Mechanism Tillage could increase yield even at relatively low nitrogen levels.
- Intervention effect Tilled carinata at 45 kg N ha −1 yielded 8%–17% more seed than no tilled carinata at 135 kg N ha −1.
- Recommendation The authors recommend subsoil tillage and 90–135 kg N ha −1 for carinata on hardpan soils.