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A key indicator for the assessment of spatially variable phosphorus fertilisation
RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
2005 (English)In: Precision Agriculture 2005, ECPA 2005, 2005, p. 977-983Conference paper, Published paper (Refereed)
Abstract [en]

In order to describe the degree of within-field spatial variation of phosphorus, a spatial key indicator for P was developed. It was applied to data at two different geographical scales. In the first case, a general overview is given of the within-field phosphorus variability in central Sweden based on a very large number of soil analyses. In the second case, detailed data from nine project farms were compiled and specific examples are discussed in-depth. The economic potential of variable-rate P fertilisation is assessed. The examples show that the commonly used, traditional fertiliser recommendations lead to substantial over-application of phosphorus in parts of the fields. This, as well as the economic consequences, is visualised by the key indicator.

Place, publisher, year, edition, pages
2005. p. 977-983
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-248OAI: oai:DiVA.org:ri-248DiVA, id: diva2:936884
Conference
5th European Conference on Precision Agriculture, ECPA 2005.9 June 2005 through 12 June 2005. Uppsala, Sweden. Conference code: 102118.
Available from: 2016-06-14 Created: 2016-06-14 Last updated: 2016-06-29Bibliographically approved

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