This study discusses the methodical problems which occur during the process of generating weed distribution maps in geoinformation systems (GIS). Particular attention will be paid to the question of whether or not the weed sampling data and the weed distribution maps for site-specific weed control are sufficiently representative. Manual or image-processing sampling procedures are applied in ord...

This paper demonstrates the framework and methodology how weed population dynamics can be predicted using rule-base fuzzy logic as applied to GIS spatial image. Parthenium weed (parthenium hysterophorus L.) infestation in the Central Queensland region poses a serious threat to the environment and economic viability of the infected areas. Government agencies have taken steps to control and manag...

This study aimed to compare weed flora in conventionally and organically grown medicinal aromatic plants (MAPs): basil, pot marigold, dill, peppermint; terms of composition abundance. A total 28 species (25 15 conventional organic crops, respectively) were identified.The presence abundance certain affected by MAP farming system. Higher diversity weediness, lower floristic similarity found crops...

Whilst it is agreed that climate change will impact on the long-term interactions between crops and weeds, the results of this impact are far from clear. We suggest that a thorough understanding of weed dominance and weed interactions, depending on crop and weed ecosystems and crop sequences in the ecosystem, will be the key determining factor for successful weed management. Indeed, we claim th...

To better understand the changes in weed communities following adoption of conservation agriculture (CA), we investigated functional composition fields implementing CA continuously from 1 to 21 years. Weed surveys were conducted 100 winter wheat 53 farmers Bourgogne-Franche-Comté region, Eastern France. Ten response traits selected highlight communities, using weighted mean value for quantitati...