Claim · model-written summary
Soil profile nitrate increased with applied manure and fertilizer N amounts.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- manure and fertilizer Ne0
- Outcome
- soil NO 3e0
- Direction
- increasese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“increases in soil NO 3 that were related to the amounts of manure and fertilizer N applied”
Title
Nitrogen Fertilizer and Dairy Manure Effects on Corn Yield and Soil Nitrate
William E. Jokela Soil Science Society of America Journal 1992. doi:10.2136/sssaj1992.03615995005600010023x
Other claims from this paper (14)
- Intervention effect N fertilizer increased corn yields.
- Intervention effect Manure increased corn yields.
- Intervention effect N fertilizer increased corn N uptake.
- Intervention effect Manure increased corn N uptake.
- Intervention effect Without manure, fertilizer N increased grain yield through 112 kg ha ‐1 in all years.
- Intervention effect Without manure, fertilizer N increased silage yield through 112 kg ha ‐1 in all years.
- Intervention effect With manure, N fertilizer did not significantly increase yields.
- Association Time of application had little or no yield effect.
- Observation Plant N uptake followed a similar pattern with more pronounced treatment effects.
- Method / resource Presidedress soil nitrate testing reflected N availability as indicated by yield.
- Intervention effect Manure rates gave a yield response equivalent to 73 to 122 kg fertilizer N ha ‐1.
- Observation Fall-to-spring soil nitrate decreases were measured.
- Observation Net nitrate losses were minimal with under 60 kg ha ‐1 fall NO3-N.
- Intervention effect Manure gave similar or slightly lower soil nitrate than equivalent fertilizer N.