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Sparks, Donald L., 1953-

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agronomy science * Maintains the highest impact factor among serial publications in Agriculture * Presents

Sparks, Donald L., 1953-

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, characteristics of organic farming systems, and effects on the environment, are discussed in Chapter 5. Chapter 6

Sparks, Donald L.

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Science Citation* Index 1996 report with an impact factor over 2.1 and a cited half-life of over 10 years.

Sparks, Donald L., 1953-

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reference and as a first-rate source of the latest research in agronomy, crop science, and soil science. Key

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