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dynamiCROP Features

quick user guide | introduction video | get models/databases dynamiCROPfeatures    Crop-Specific Regression Models    The dynamiCROP model was fully parametrized by developing crop-specific regression models with focus on the system driving aspects, such as time to crop harvest, degradation in and on crops, residence time in soil and some substance properties. (read on) Database of Reference Dissipation Half-Lives    Estimated reference dissipation half-lives of 333 pesticides in crops (field conditions, 20°C) are provided. How to use the data: 1) Instead of averaged measured half-lives, we recommend using reference half-lives (Table 1, Fantke et al., 2014), considering temperature, cold storage, plant, chemical, and uncertainty. 2) Example: for abamectin, starting point is a half-life of 3.81 days (95% CI: 3.59 to 4.04 days), see Table 1, representing average abamectin dissipation across plants under field conditions at 20°C. 3) Eq. 5 can be used to correct half-lives for plant species, e.g. strawberries: log half-life = log 3.81 days (from Table 1) − 0.05 (βstrawberry in Table S3, SI) = 0.531 → 10^0.531 = 3.396 days, i.e. abamectin half-life in strawberries, field conditions, 20°C. 4) Eq. 5 can be further used to correct for different temperatures. 5) For pesticides not in Table 1, eq. 7 provides half-lives based on chemical properties. These half-lives are currently too high and not reliable! (read on) Download the free half-lives calculator. Database of Measured Dissipation Half-Lives    4513 measured dissipation half-lives of 346 pesticides in 183 crop species have been collected from 811 scientific references (more than 99% peer-reviewed) and analyzed for their variability to serve as input for dynamiCROP and other modeling tools assessing pesticide fate in crops. (read on)

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