Claim · model-written summary
For the two years after 1992, losses were significantly higher for 134 kg N ha−1 on the clay loam.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e3“For the subsequent two years, losses were similar for the 22 kg N ha −1 and the PSNT‐based treatments, but significantly higher for the 134 kg N ha −1 treatment on the clay loam”
Title
Nitrate Leaching and Nitrogen Budget as Affected by Maize Nitrogen Rate and Soil Type
Jean M. Sogbedji; Harold M. van Es; Charissa L. Yang; et al. Journal of Environmental Quality 2000. doi:10.2134/jeq2000.00472425002900060011x
Other claims from this paper (10)
- Intervention effect Nitrate leaching was similar between fertilizer N treatments at both sites in 1992.
- Observation Nitrate concentrations in drainage water exceeded 10 mg L−1 in 1992.
- Intervention effect For the two years after 1992, losses were similar for 22 kg N ha−1 and the PSNT-based treatments.
- Association Nitrate leaching losses were consistently higher on the loamy sand than on the clay loam.
- Intervention effect On the loamy sand, nitrate losses increased from the lowest to the highest N rate.
- Observation The highest N rate left the highest residual soil nitrate.
- Observation On the clay loam, significant N losses occurred from denitrification following alfalfa plowdown.
- Association N use efficiency decreases rapidly with overfertilization.
- Intervention effect The PSNT-based N rate reduced N leaching losses.
- Intervention effect The PSNT-based N rate maintained maize yields.