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Subject: Pesticides
Number of items at this level: 4.
(2002) Cropping Practices Baseline Data, 2002. Agriculture and Land Stewardship. (2002) Iowa Soil Properties and Interpretation Database, 2002. Agriculture and Land Stewardship. (2002) Soil Nitrogen and Carbon Management Project, 2002. Agriculture and Land Stewardship. (2001) Hub/Spokes Nutrient Management Model, 2001. Agriculture and Land Stewardship. |