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(("goodwater creek" OR "elk fork salt" OR "south fork salt" OR "mark twain" OR "salt river" OR "north fork salt" OR "black creek" OR "crooked creek" OR "otter creek") AND missouri) OR ((sadler OR baffaut OR lerch OR sudduth) AND (watershed OR competit? OR csrees)) OR (((ars OR "agricultural research") AND benchmark) OR ((hydro OR model OR gage OR "water quality") AND missouri) OR (ars AND stewards))
Remove constraint All Fields: (("goodwater creek" OR "elk fork salt" OR "south fork salt" OR "mark twain" OR "salt river" OR "north fork salt" OR "black creek" OR "crooked creek" OR "otter creek") AND missouri) OR ((sadler OR baffaut OR lerch OR sudduth) AND (watershed OR competit? OR csrees)) OR (((ars OR "agricultural research") AND benchmark) OR ((hydro OR model OR gage OR "water quality") AND missouri) OR (ars AND stewards))
Topic
nitrate nitrogen
Remove constraint Topic: nitrate nitrogen
Topic
crop yield
Remove constraint Topic: crop yield
Format
Article OR Journal
Remove constraint Format: Article <strong class='text-muted constraint-connector'>OR</strong> Journal