The effect of different soil core samplers on precision of estimating weed seedbank in soil

V. Smutný and J. Křen
Additional contact information
V. Smutný: Mendel University of Agriculture and Forestry in Brno, Czech Republic
J. Křen: Mendel University of Agriculture and Forestry in Brno, Czech Republic

Plant, Soil and Environment, 2003, vol. 49, issue 10, 466-472

Abstract: The effect of different soil sampling procedures on the precision of estimating the weed seedbank in soil using three soil core samplers with a circular base of 1.3, 6.4 and 8.0 cmin diameter was studied in a model experiment. The results showed the importance of a methodological approach. The soil sampler with a larger diameter is more useful for the objective assessment of the species spectrum (detection of seeds of all weed species in the soil). Furthermore, the value of the coefficient of variation (vx) decreases along with the increasing diameter of the soil sampler. The value of vx assessed in partial samples taken with a sampler of 1.3 cm diameter was double to three times higher than for soil samplers of 6.4 and 8.0 cm. The value of vx increased in individual weed species at decreasing seed frequency in individual partial samples from 17.82 to 316.23%. The soil core with the diameter of8.0 cm on the area of1 m2 is optimal for the exact research. To estimate the weed seedbank in soil in small-plot experiments, one partial sample on the area of5 m2 is recommended. To obtain comparable results, it is necessary to take a higher number of samples at a decreasing diameter of the soil sampler. Likewise, a larger amount of samples is needed to detect less abundant species.

Keywords: weed seedbank in soil; soil sampling; precision of estimating (search for similar items in EconPapers)
Date: 2003
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/4158-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/4158-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:49:y:2003:i:10:id:4158-pse

DOI: 10.17221/4158-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().