Field Studies
Central Mexico Study –
University of Queretaro,
Dr. Eusebio Ventura and Dr. Darrell Norton
(2002 – 2006)
Almost 100% of rainfall was harvested, and there
was no significant evidence of soil erosion or run-off
Water infiltration rates enhanced significantly,
with residual soil moisture increasing by 52%
Average bean yield increase of well over 100%
(pictured left and chart below)
TerraStar enabled these bean farmers to move from
48” row centers to 12” row centers with no fertilizer or irrigation.

Soil Erosion Study –
Dr. Darrell Norton, President of PedoTechnologies, Inc. (June 2006)
“. . . each [TerraStar] reservoir will capture 2/3 of a pound of sediment per inch of rainfall. When this is converted to a per acre basis, the TerraStar system has the potential to trap 30 tons of soil per acre per inch of rainfall.”
(Control plot on left and TerraStar prototype plot on right)
Arise Research & Discovery (2006 – present)
Tomatoes – 42% yield increase
Improved appearance and consistency
No staking required in TerraStar plot
($1,500 per acre savings)
Potatoes – 21% yield increase
Improved consistency & appearance
Corn – 12% yield increase
Improved plant structure
Erosion
9” rainfall in 24 hours (spring ’08), control plot corn washed out and replanting required, TerraStar plot corn undamaged
Nitrates
TerraStar reduces nitrate levels in watershed by about 50%
READ FULL REPORTS
An Evaluation of An Innovative Wheel for Strip Tillage in Field Corn with Fall Treatment vs. Spring
The following studies will show the impact that using the TerraStar could make in different industries and environmental applications
Ethanol Efficiency Study –
James Porterfield (January 2009)
• Nitrogen cost reduced by 16.7%
• Corn yield increased by 8%
• Starch content up 6% to 10%
• Ethanol production up 14%
• Lower cost and higher output leads to increased
returns for both farmers and ADM
Chesapeake Bay Watershed Study – 
James Porterfield (March 2008)
• Ag run-off has devastated the Bay’s ecosystem
• 13.1 million tons of soil erosion annually
• 44 million pounds of nitrate run-off
• 14 billion gallons of water wasted each year
TerraStar usage has the potential to:
• Reduce soil erosion by up to 90%
• Conserve 3,348 gallons of water per acre per year
• Significantly reduce nitrate run-off
• TerraStar may produce $3.8 billion of environmental and economic benefits for the watershed over the next 5 years



