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Effect of soil moisture stress on uptake and recovery of tagged nitrogen by wheat

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dc.contributor.authorPaul, E. A., author
dc.contributor.authorMyers, R. J. K., author
dc.contributor.authorAgricultural Institute of Canada, publisher
dc.date.accessioned2007-01-03T06:07:18Z
dc.date.available2007-01-03T06:07:18Z
dc.date.issued1971-02
dc.description.abstractLabelled 15NH4NO3 was used in a growth chamber to study the effect of moisture stress on the utilization of nitrogen by wheat. This made it possible to determine the recovery of nitrogen (N) in the soil-plant system of two Chernozemic soils. Moisture stress effects were less evident in a clay soil than in a loam. Approximately 55% of the N utilized by the growing plants came from organic soil-N mineralized during the growing period. From 59 to 71% of the initial fertilizer plus soil mineral-N was utilized by the plants. Twenty to 36% remained in the soil, and 1 to 17% was lost. Losses were greatest in soils exposed to high moisture stress and were related to the residual NO3-N levels in the soil. They were attributed to denitrification. Immobilization of N was highest at low moisture stress where plant growth was the greatest, but mineralization was unaffected by the moisture stress applied. It was estimated that 5.0 to 6.2 kg N were required to produce 100 kg of wheat, the highest efficiency of N utilization being obtained at low soil moisture stress.
dc.format.mediumborn digital
dc.format.mediumarticles
dc.identifier.bibliographicCitationPaul, E. A. and R. J. K. Myers, Effect of Soil Moisture Stress on Uptake and Recovery of Tagged Nitrogen by Wheat. Canadian Journal of Soil Science 51, no. 1 (February 1971): 37-43. https://dx.doi.org/10.4141/cjss71-005.
dc.identifier.doihttps://dx.doi.org/10.4141/cjss71-005
dc.identifier.urihttp://hdl.handle.net/10217/80909
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofFaculty Publications
dc.rights©1971 Agricultural Institute of Canada.
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectgrowth chamber
dc.subjectenvironmental effects
dc.subjectdryland cropping
dc.subjectdrought
dc.subjectsoil texture
dc.subjectfertilizer
dc.titleEffect of soil moisture stress on uptake and recovery of tagged nitrogen by wheat
dc.typeText

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Effect of soil moisture stress on uptake and recovery of tagged nitrogen by wheat
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