Comparing methods for determination of N uptake in winter wheat

L. Engström; K. Persson; M. Söderström

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Comparing methods for determination of N uptake in winter wheat

In: Precision agriculture '25

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L. Engström

L. Engström lena.engstrom@slu.se

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K. Persson

K. Persson
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M. Söderström

M. Söderström
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Type:: Chapter

Pages:: 474–480

DOI:: https://doi.org/10.1163/9789004725232_061

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Dar Hadith al Hassania

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Local and current soil nitrogen (N) mineralisation should guide supplemental N rates. To facilitate this, methods for rapid assessment of crop N uptake (kg N/ha) were tested in five winter wheat (Triticum aestivum L.) trials in Sweden, around GS39. Four types of measurements were done: leaf sensors, handheld canopy sensors, multispectral drone cameras, and other, manual methods. Several options were found to be simple and accurate enough (mean absolute error >5 kg N/ha) for practical use by farmers and advisors. The best results were obtained when leaf and canopy measurements were combined.

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Precision agriculture '25

E-Book ISBN:: 9789004725232

Publisher:: Wageningen Academic

Print Publication Date:: 18 Jun 2025

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- Life Sciences
  - General
  - Agriculture & Environment

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Comparing methods for determination of N uptake in winter wheat

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Precision agriculture '25

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