For water that is sent to area farms for irrigation, we work closely with the farmer, experienced agronomists, and soil scientists to closely monitor the treated process water and land application system to minimize overirrigation and overapplication of nitrogen.
· Soil moisture readings are taken weekly during the growing season and twice a week during the non-growing season to ensure we do not over irrigate.
· Weekly rain gauge readings and daily treated process water runtimes determine irrigation amounts sent to specific fields.
· Treated process water samples are taken weekly and sent to a third-party laboratory for analysis and the information from this analysis is used to calculate nitrogen loading for each field.
· Soil samples are collected after crop harvest to document soil nitrogen content to inform decisions on irrigation.
Lamb Weston is committed to water stewardship and continues to invest in processes and systems that improve our water efficiency and our land application program, with a focus on reducing nitrogen levels and protecting the environment.