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1. Soil management of peach orchards in Eastern United States (id:CAT87210395)

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2. Estimating the amount of crop residue on a field (id:CAT87208917)

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3. Nitrogen and carbon changes in Great Plains soils as influenced by cropping and soil treatments (id:CAT87201098)

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4. Legumes in soil conservation practices (id:ORC00000592)

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5. Soil-depleting, soil-conserving, and soil-building crops (id:33478)

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6. Effect of fertilizers on composition of soybean hay and seed and of crop management on carbon, nitrogen, and reaction of Norfolk sand (id:CAT86200581)

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7. Building up a run-down cotton plantation (id:ORC00000114)

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8. Management of soils to conserve moisture : with special reference to semiarid conditions (id:ORC00000089)

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9. Renovation of worn-out soils (id:ORC00000079)