Comparison of simulated crop yield patterns for site-specific management.

C.G.R. van Uffelen, J. Verhagen, J. Bouma

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

Site-specific management (SSM) aims to maximise crop production and make efficient use of agrochemicals. This is achieved by varying farm management practices with consideration of local variability. Maps displaying relevant soil variability are needed to guide these site-specific practices. As it takes years to collect yield and leaching data to produce maps, use of simulation models is recommended to produce yield and leaching patterns. Based on 65 well-documented locations on a 2.2 ha field, simulations of potato growth were made for 7 years, assuming a water-limited production situation. From these point simulations crop development patterns are derived using kriging techniques. For site-specific management we need to determine areas with relatively uniform behaviour in different years. A pattern-comparison technique, based on taxonomic distances between patterns among the 7 years, was modified and used to determine a prototype pattern. This prototype pattern is considered to be the basis for a SSM map.
Original languageEnglish
Pages (from-to)207-222
JournalAgricultural Systems
Volume54
Issue number2
DOIs
Publication statusPublished - 1997

Keywords

  • yield increases
  • yield losses
  • yields
  • precision agriculture
  • geostatistics

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