Results of Our Work
Interactive Summaries of On-Farm Strip Trials: ISOFAST
This online interactive tool is designed to provide individual and aggregated summaries of on-farm trials conducted by farmers working with ISA. On-farm trials include replicated treatments, or strips, that test different products, practices or technologies in Iowa cropping systems. Data available includes the trial description, trial locations, observed weather and results. Users can select or deselect years by checking boxes on the legend.
Curious how ISOFAST works? Watch this short overview video demonstrating interactive features of the ISOFAST tool. Specifically interested in the economic analysis portion? Watch this in-depth video.
Vegetation Index Time Series Interactive Tool: VITSIT
The Vegetation Index Time Series Imagery Tool (VITSIT) was developed to:
- Communicate the differences between uncalibrated and calibrated imagery sources;
- Report time series of different vegetation indices of crop canopy to identify within-field yield corn and soybean variability zones;
- Identify whether temporal patterns for different vegetation indices change during and across growing seasons;
- Report correlation between yield and vegetation indices from the beginning to the end growing season;
- Identify how rainfall changes imagery calibration quality and correlation with yield.
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Soybean Variable Rate Planting Simulator
Before flying solo, student pilots use a flight simulator. Why not use a similar approach when deciding whether to use soybean variable rate seeding? With user inputs of historical soybean yield, seed cost, and expected yield response, the tool simulates different variable planting rate scenarios to maximize return and minimize cost.
Replicated Strip Trial Individual Field Reports
The replicated strip trial database contains summaries of individual trials following On-Farm Network protocols. The summaries include essential management information, spatial yield data, and imagery. Scouting, soil and tissue sampling reports are included if available. The interface allows users to query by year, crop, trial type/detail and location. Trial reports have had farmer-identifying information removed.
Several strip trials conducted in 2018 include short summary documents:
Stream Water Monitoring
Data collected from rivers and streams is used to prioritize sub-watersheds, develop scientific publications and establish long-term trend analyses. The information also can be used to develop and fine-tune the performance of conservation edge-of-field practices such as bioreactors, saturated buffers and targeted wetlands.
Agriculture’s Clean Water Alliance (ACWA) contracts with ISA to ensure this level of water sampling continues in priority watersheds.
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