The uptake of soil and fertilizer-nitrogen by barley growing under Scottish climatic conditions

K. A. Smith*, Ann E. Elmes, R. S. Howard, M. F. Franklin

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Field experiments were carried out using15N-labelled calcium nitrate, to investigate the relative uptake by barley of fertilizer-N and soil-N. On imperfectly drained till soils uptake of soil-N increased with increasing rate of fertilizer, but remained constant on a brown sand, possibly due to more efficient root exploration in the latter soil. In four out of five seasons, late uptake of soil-derived N was a major feature, and uptake from ploughed soil as compared with uptake from direct-drilled soil was correlated with seasonal rainfall patterns. Significantly higher quantities of both fertilizer- and soil-derived N were taken up by winter barley than by spring barley, reflecting the longer growth period and higher dry matter yield from the former crop.

Original languageEnglish
Pages (from-to)49-57
Number of pages9
JournalPlant and Soil
Volume76
Issue number1-3
DOIs
Publication statusPrint publication - 1 Feb 1984

Keywords

  • Ammonium
  • Barley
  • Fertilizer
  • Mineralization
  • Nitrate
  • Nitrogen
  • Nitrogen-15

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