Soil Survey Laboratory Methods (Soil Survey Investigations Report No. 42 Version 4.0 November 2004 

<p><i>Advances in Agronomy </i>continues to be recognized as a leading reference and a first-rate source of the latest research in agronomy. Major reviews deal with the current topics of interest to agronomists, as well as crop and soil scientists. As always, the subjects covered are varied and exemplary of the myriad subject matter dealt with by this long-running serial. Editor <i>Donald Sparks</i>, former president of the Soil Science Society of America and current president of the International Union of Soil Science, is the <i>S. Hallock</i> du Pont Chair of Plant and Soil Sciences at The University of Delaware.</p> <p>Volume 82 contains eight state-of-the-art reviews on topics of interest in the plant and soil sciences. Three of the reviews present cutting-edge molecular scale techniques and approaches that directly impact food production, crop improvement, and environmental quality and sustainability.</p>

<p>Volume 88 of <i>Advances in Agronomy</i> contains eight timely reviews on topics dealing with biodiversity, carbon sequestration, crop improvement, nitrogen dynamics, and the discipline of soil science. Discussions include but are not limited to: Agriculture, soil biodiversity, climate change and agricultural diversity&#x3b; ways to improve soil aeration, oxygation and plant processes, and oxygation scenarios&#x3b; and pre-sowing seed treatment as a means for improving germination, plant growth and crop yield.</p> <p><i>Advances in Agronomy</i> continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myraid of subject matter dealt with by this long-running serial.</p>

Yiqi, Luo

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