Development of soil pH and lime requirement maps using on-the-go soil sensors

E.D. Lund; V.I. Adamchuk; K.L. Collings; P.E. Drummond; C.D. Christy

Development of soil pH and lime requirement maps using on-the-go soil sensors

äºPrecision Agriculture â05

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E.D. Lund

E.D. Lund ¹Veris Technologies, Inc., 601 N. Broadway, Salina, KS 67401, USA
lunde@veristech.com

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V.I. Adamchuk

V.I. Adamchuk ²University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA

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K.L. Collings

K.L. Collings ¹Veris Technologies, Inc., 601 N. Broadway, Salina, KS 67401, USA

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P.E. Drummond

P.E. Drummond ¹Veris Technologies, Inc., 601 N. Broadway, Salina, KS 67401, USA

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C.D. Christy

C.D. Christy ¹Veris Technologies, Inc., 601 N. Broadway, Salina, KS 67401, USA

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Page Range:: 457â464

DOI:: https://doi.org/10.3920/978-90-8686-549-9_057

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Since conventional sampling and laboratory soil analysis do not provide a cost effective capability to obtain georeferenced measurements with adequate frequency, different on-the-go sensing techniques have been attempted. One such recently commercialized sensing system combines mapping of soil electrical conductivity and pH. The concept of direct measurement of soil pH has allowed for a substantial increase in measurement density. In this publication, the analysis of variable rate lime prescription maps is discussed. Liming rates generated from on-the-go measurements can result in improved prediction of liming requirement compared to the conventional 1 ha grid sampling (RMSE = 1354 versus 2506 kg/ha).

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Precision Agriculture â05

ISBN:: 9789086865499

åºçç¤¾:: Wageningen Academic

å°å·åºçæ¥æ:: 24 Oct 2005

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- Life Sciences
  - General
  - Agriculture & Environment

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Development of soil pH and lime requirement maps using on-the-go soil sensors

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