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Found 467 works matching this query
Nitrate-nitrogen concentrations in ground water from three selected areas in Kansas
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Water-quality reconnaissance of ground water in the inhabited outer islands of Chuuk State, Federated States of Micronesia, 1984-85
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Soil nitrogen
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Nitrogen in soils of China
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In-situ bioremediation of nitrate-contaminated ground water
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Nitrogen-loss potential ratings for Illinois soils
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Soil and fertilizer nitrogen
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Summary analysis of the North American (US portion) OECD eutrophication project
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Role of blue-green algae in nitrogen economy of Indian agriculture
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Nitrate and other water-quality characteristics, and nitrogen in the unsaturated zone, in the Red Willow and Hitchcock Counties Special Protection Area, southwest Nebraska, 1993-95
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