Claim · model-written summary
Corn leaf N concentration tended to reflect manure and fertilizer N rates, inconsistently across years.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- N and P rates applied with the manures and the fertilizer treatmente0
- Outcome
- Corn leaf Ne0
- Qualifier
- not consistently each yeare0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn leaf N and P concentrations tended to reflect N and P rates applied with the manures and the fertilizer treatment compared to the check, but not consistently each year.”
Title
Comparison of Solid vs. Liquid Dairy Manure Applications on Corn Yield and Soil Composition
A. L. Sutton; D. W. Nelson; D. T. Kelly; et al. Journal of Environmental Quality 1986. doi:10.2134/jeq1986.00472425001500040010x
Other claims from this paper (16)
- Intervention effect Manure addition increased corn yield versus no fertilizer.
- Intervention effect Manure supplied plots yielded as much or more than commercial fertilizer plots.
- Intervention effect Liquid manure at 224 Mg ha −1 produced maximum yield 1% above commercial fertilizer.
- Intervention effect Solid manure at 67 Mg ha − produced maximum yield 1% above commercial fertilizer.
- Intervention effect Nutrient accumulation after high liquid manure rates increased residual year corn yield.
- Association Corn leaf P concentration tended to reflect manure and fertilizer P rates, inconsistently across years.
- Intervention effect Manure source had little effect on corn leaf composition.
- Association Soil P increased with successive manure application years and higher rates.
- Association Soil K increased with successive manure application years and higher rates.
- Association Soil Na increased with successive manure application years and higher rates.
- Observation Extractable P accumulated in the upper soil profile.
- Observation Exchangeable K increased at lower soil depths, especially at highest manure rates.
- Observation Exchangeable Na increased at lower soil depths, especially at highest manure rates.
- Recommendation Both manure sources were judged valuable for corn nutrient supply.
- Association Manures were less nutrient efficient than commercial fertilizer when surface applied.
- Observation Excessive manure application presents potential groundwater pollution.