Claim · model-written summary
PPD increased corn grain yield versus urea alone, without statistical significance.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- PPDe0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- urea alonee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1982, grain yield, total dry matter, total N uptake and fertilizer N uptake were all higher where PPD was used than with urea alone, but the differences fell short of statistical significance at the 0.05 level.”
t0“Corn”
Title
Performance of Some Urease Inhibitors in Field Trials with Corn
F. E. Broadbent; T. Nakashima; Grace Y. Chang Soil Science Society of America Journal 1985. doi:10.2136/sssaj1985.03615995004900020015x
Other claims from this paper (10)
- Intervention effect PPD increased corn total dry matter versus urea alone, without statistical significance.
- Intervention effect PPD increased corn total and fertilizer nitrogen uptake versus urea alone, without statistical significance.
- Intervention effect Cultivation increased corn total dry matter and grain yield relative to zero tillage.
- Intervention effect Cultivation increased corn nitrogen uptake relative to zero tillage.
- Intervention effect No tested urease inhibitor improved nitrogen uptake relative to urea alone.
- Observation Inhibitors added to surface banded urea solution showed little advantage.
- Observation TPD coating on broadcast solid urea showed promise.
- Observation DPT coating on broadcast solid urea showed promise.
- Observation Soils with wheat straw or corn residues had lower applied nitrogen recoveries than bare soil.
- Observation The soil analyses found no clear effect of urease inhibitors on soil urea levels.