Claim · model-written summary
Increasing nitrogen increased grain yield quadratically across cultivars.
- Treatment
- Increasing N levelse0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- quadratically for all the cultivarse0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N levels increased grain yield, kernel weight, and grain protein quadratically for all the cultivars”
t0“Maize”
Title
Nitrogen Fertilizer Management Effects on Maize Grain Quality in the West African Moist Savanna
S. O. Oikeh; J. G. Kling; A. E. Okoruwa Crop Science 1998. doi:10.2135/cropsci1998.0011183x003800040029x
Other claims from this paper (11)
- Intervention effect Increasing nitrogen increased kernel weight quadratically across cultivars.
- Intervention effect Increasing nitrogen increased grain protein quadratically across cultivars.
- Observation Hybrid 8644‐27 had the highest grain yield, 5.3 Mg ha −1.
- Observation Hybrid 8644‐27 had the highest kernel weight, 26.62 mg kernel −1.
- Observation Mean grain protein yield per area did not differ significantly among cultivars in either year.
- Observation At 30–60 kg N ha −1, 8644‐27 and TZPB‐SR had more floaters than other cultivars.
- Observation SPL and TZB‐SR had relatively few floaters at 30–60 kg N ha −1.
- Observation SPL and TZB‐SR had high test weights, over 811 kg m −3 in 1993.
- Observation SPL and TZB‐SR had high test weights, over 778 kg m −3 in 1994.
- Recommendation The authors suggest 8644‐27 and TZPB‐SR for traditional dry milling.
- Recommendation The authors suggest SPL and TZB‐SR for industrial dry milling and grits.