1p9: The legacy effect of synthetic N fertiliser

Authors

  • Wytse J. Vonk
  • Renske Hijbeek
  • Margaret J. Glendining
  • David S. Powlson
  • Anne Bhogal
  • Ines Merbach
  • João Vasco Silva
  • Hanna J. Poffenbarger
  • Jagman Dhillon
  • Klaus Sieling
  • Hein F.M. ten Berge

Abstract

Cumulative crop recovery of synthetic fertiliser nitrogen (N) over several cropping seasons (legacy effect) generally receives limited attention. The increment in crop N uptake after the first-season uptake from fertiliser can be expressed as a fraction (ΔRE) of annual N application rate. This study aims to quantify ΔRE using data from nine long-term experiments (LTEs). As such, ΔRE is the difference between first season (RE1st) and long-term (RELT) recovery of synthetic fertiliser N.

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Published

2022-03-11

Issue

Posters

Section

Day 1 | 11 April 2022

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Copyright (c) 2022 Conference Circular@WUR

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.