Abstract
Abstract Soil, leaf, and grain natural 15 N abundance was measured in corn ( Zea mays L.) and soybean ( Glycine max L.) plots which had received various rates of fertilizer N for 20 years. Soil 15 N abundance did not significantly reflect the amount of fertilizer N applied and should not be used to estimate fertilizer N additions. Corn leaf and grain 15 N abundance reflected additions of fertilizer N only at low rates of fertilizer N applied. Soybean leaf 15 N abundance reflected a decrease in symbiotic N fixation with additional increments of fertilizer N applied.
Keywords
FertilizerAgronomyAbundance (ecology)ChemistryEnvironmental scienceBiologyEcology
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Publication Info
- Year
- 1975
- Type
- article
- Volume
- 4
- Issue
- 4
- Pages
- 486-490
- Citations
- 48
- Access
- Closed
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Cite This
V. W. Meints,
L. V. Boone,
L. T. Kurtz
(1975).
Natural 15N Abundance in Soil, Leaves, and Grain as Influenced by Long Term Additions of Fertilizer N at Several Rates.
Journal of Environmental Quality
, 4
(4)
, 486-490.
https://doi.org/10.2134/jeq1975.00472425000400040013x
Identifiers
- DOI
- 10.2134/jeq1975.00472425000400040013x