Nitrogen fertilisation management in precision agriculture: a preliminary application example on maize

  • Raffaele Casa | rcasa@unitus.it Dipartimento di Produzione Vegetale U, Viterboniversita' della Tuscia, Italy.
  • Andrea Cavalieri
  • Benedetto Lo Cascio

Abstract

The adoption of precision agriculture techniques for N management has the potential for improving agronomic, economic and environmental efficiency in the use of such input. The present work was aimed at testing a simplified N balance method for the prescription of N fertilisation in uniform management zones defined from information on measured soil properties on grain maize in central Italy. The results of this preliminary experience show that the application of the N balance prescription map did not bring to significant differences, from a uniform N fertilisation, in terms of grain yield, economic return above N cost and nitrate content in the soil profile at the end of the growing season. However, the adoption of the prescribed N fertilisation strategy for the whole field would have caused a limited saving in the amount of fertiliser employed, quantified at about 10 kg N ha-1.

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Published
2011-02-22
Section
Original Articles
Keywords:
nitrogen balance, spatial variability, variable rate application, uniform management zones, nitrogen fertilisation.
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How to Cite
Casa, R., Cavalieri, A., & Lo Cascio, B. (2011). Nitrogen fertilisation management in precision agriculture: a preliminary application example on maize. Italian Journal of Agronomy, 6(1), e5. https://doi.org/10.4081/ija.2011.e5