Weeds in fields with contrasting conventional and genetically modified herbicide-tolerant crops. I. Effects on abundance and diversity.

@article{Heard2003WeedsIF,
  title={Weeds in fields with contrasting conventional and genetically modified herbicide-tolerant crops. I. Effects on abundance and diversity.},
  author={M S Heard and Cathy Hawes and G. T. Champion and Suzanne J. Clark and Les G. Firbank and Alison J Haughton and Ashley Parish and J. N. Perry and Peter Rothery and Rod J. Scott and Matthew P. Skellern and Geoffrey R. Squire and Mark O. Hill},
  journal={Philosophical transactions of the Royal Society of London. Series B, Biological sciences},
  year={2003},
  volume={358 1439},
  pages={1819-32}
}
We compared the seedbanks, seed rains, plant densities and biomasses of weeds under two contrasting systems of management in beet, maize and spring oilseed rape. Weed seedbank and plant density were measured at the same locations in two subsequent seasons. About 60 fields were sown with each crop. Each field was split, one half being sown with a conventional variety managed according to the farmer's normal practice, the other half being sown with a genetically modified herbicide-tolerant (GMHT… CONTINUE READING
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