Results of Our Work

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.

Click here to view the database.

Several strip trials conducted in 2018 include short summary documents:

Agrocete foliar products in soybeans

Climate Corp variable rate nitrogen tool

Endoprime technology in corn

Long-term cover crop trials

Nemastrike seed treatment in corn

Nemastrike seed treatment in soybeans

New Tech SI In-furrow inoculant in soybeans

Nitrogen Rate Trials

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.

Click here to access Interactive Summary of On-Farm Strip Trials: ISOFAST

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.

Stream monitoring results

All ISA research teams have been involved in conducting surveys of corn nitrogen status using late-season aerial imagery and corn stalk nitrate tests. When possible, the sampling locations were paired with water monitoring to maximize the benefits to farmers. The results from individual locations are available in the Guided Stalk Sampling Database.