Field-scale variability of weediness on arable land

P. Hamouz, J. Soukup, J. Holec and M. Jursík
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P. Hamouz: Czech University of Agriculture in Prague, Czech Republic
J. Soukup: Czech University of Agriculture in Prague, Czech Republic
J. Holec: Czech University of Agriculture in Prague, Czech Republic
M. Jursík: Czech University of Agriculture in Prague, Czech Republic

Plant, Soil and Environment, 2004, vol. 50, issue 3, 134-140

Abstract: Weed mapping was conducted on 2 fields in Central Bohemia to characterize the spatial structure and temporal stability of weed populations over four years (1999-2002). A number of plants for each species and the total weed coverage were investigated on the grid points. To determine the weed infestation variability, and the Patchiness-Index was calculated. Use of Surfer-software, and weed maps were created. For single weed species occurrence the correlation between 1999 and 2000 was calculated. The results document heterogeneous occurrences of weeds, especially Cirsium arvense (PI = 9.09-15.86), Tripleurospermum maritimum (PI = 11.01-217.30) and Galium aparine (PI = 4.61-7.70), whereas Viola arvensis and Stellaria media were distributed more homogeneously. Weed grasses occurred in all years slightly. G. aparine is characterized by relatively high spatial stability.

Keywords: weed infestation; weed mapping; weed population dynamics; spatial variability; temporal variability; precision farming (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:50:y:2004:i:3:id:4019-pse

DOI: 10.17221/4019-PSE

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