@article{Nordblom:125800,
      recid = {125800},
      author = {Nordblom, Thomas L. and Jones, Randall E. and Medd,  Richard W.},
      title = {Economics of factor-adjusted herbicide doses:  Best-Efficacy Targeting or Best Fixed Doses vs 'blind'  upper or lower label doses},
      address = {2001-01},
      number = {412-2016-25828},
      pages = {20},
      year = {2001},
      abstract = {Herbicide labels recommend sufficiently large doses to  achieve high efficacy of weed
control under a range of  environmental conditions. While users may not apply  doses
greater than recommended they may apply less, but do  so without quantitative
guidance. This paper explores  long-run biological and economic outcomes of fixed
label  doses and strategies keyed to density of weeds in Òbest  fixed-doseÓ (BFD) and
Òbest efficacy-targetingÓ (BET)  modes. Analysis based on 59 experiments in wheat
fields  across southern Australia, from 1986 to 1995, indicate the  latter strategies are
superior to maximum label rates in  terms of (a) mean net present values of current and
future  benefits and costs of weed management, expressed as  Hamiltonians keyed to
weed seed banks, (b) mean current  gross margins, and (c) lower overall herbicide use.
BFD  have further practical advantages in simplicity and lower  information
requirements for the user, BET in tailoring  applications to specific field
environments.},
      url = {http://ageconsearch.umn.edu/record/125800},
      doi = {https://doi.org/10.22004/ag.econ.125800},
}