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crop yield

Petroglyph Sodic Soil Reclamation

sodic soil nutrients reclamation crop yield agriculture salinity soil analysis plant tissue sampling Agriculture Water Resources Salinity & Nutrients

Land IQ worked with Petroglyph Energy, Inc. to reclaim sodic soil on a dairy farm site near La Veta, CO. Petroglyph discharged water from coal bed methane dewatering operations in the Cucharas River under permit from the State of Colorado. The discharge water was high in sodium, and resulted in high loading rates of sodium applied to corn fields irrigated with Cucharas River water. Land IQ, in collaboration with Petroglyph, farm ownership, the Colorado Oil and Gas Conservation Commission, and soil experts from the National Resources Conservation Service, designed and implemented a site evaluation, an intensive reclamation plan, and a monitoring plan to restore productivity on sodic farm soils. Land IQ’s expertise in salinity-related soil and crop management resulted in improvement in soil conditions and corn yields within one year.

Coldwater Mitigation with the California Department of Water Resources and Rice Growers

crop yield geospatial analysis Agriculture Remote Sensing Water Resources

Beginning in 2006, Land IQ personnel were instrumental in developing, negotiating, and implementing a settlement agreement between three rice-growing irrigation districts and the California Department of Water Resources (collectively the Parties). The Parties sought an agreeable means to determine fair compensation for rice crop yield loss (valued between $1M and $3M/year) due to lower water temperatures caused by operation of the State’s Oroville Reservoir. District diversions pre-dated the reservoir’s construction. The agreed technical methods had to be specific enough to provide the Parties certainty, defensible and credible enough to gain stakeholders’ financial support, and sufficiently flexible to allow future innovations to improve efficiency and/or accuracy. The agreement was signed in April 2008.

Land IQ has provided diverse technical support to the Parties during implementation by overseeing water temperature and yield monitoring, developing monitoring methods and databases, coordinating with growers, and conducting sophisticated geospatial analyses to identify and quantify fields, irrigation system features, and rice crop extent and yield. We developed a unique and accurate method of estimating rice yield loss from cold water damage using geospatial analytical techniques. Our success on this project is the result of a highly integrated team of scientists working together to create innovative and meaningful solutions for our client.

Tehama Colusa Canal Authority Deficit Irrigation Impact Assessment

irrigation crop yield Agriculture

Land IQ staff prepared expert witness testimony for United States District Court – Eastern District of California (Judge Oliver W. Wanger) on behalf of the Tehama Colusa Canal Authority. Land IQ prepared a detailed evaluation of the influence of regulated deficit irrigation on a variety of crops including almonds, grapes, walnuts, rice, olives, alfalfa, tomatoes and other permanent and annual field and row crops.

The preparation of this testimony was conducted to determine the deficit of irrigation water at pre-determined periods correlating to the growth cycles of the crops mentioned above, especially perennial crops (e.g., almonds). The results of this work indicate the extreme detrimental effects of insufficient irrigation during key growth stages of the crop. Land IQ continues to work extensively with growers, industry representatives, and local and state resources as a multi-stakeholder entity.