Handbook of methods for acid deposition studies : laboratory analyses for soil chemistry /

Mode of access: Internet.

Essential elements and soil amendments for plants : sources and use for agriculture /

Mode of access: Internet.

Determination of kinetics of phosphorus mineralization in soils under oxidizing conditions /

Mode of access: Internet.

Soil survey of Jackson County, Michigan /

At head of title: United States Dept. of Agriculture, Bureau of Chemistry and Soils in cooperation with the Michigan Agricultural Experiment Station.

Soil survey.

Title from cover.

Soil testing : a practical system of soil fertility diagnosis /

Bibliography: p. 28.

Development and significance of the great soil groups of the United States /

Contribution from Bureau of Chemistry and Soils.

Soil survey manual.

cover-title.

Soil survey of the Yuma area, Arizona-California,

[Advance sheets--Field Operations of the Bureau of Soils, 1904]

Soil survey of the Alturas area, California /

United States Department of Agriculture, Bureau of Chemistry and Soils in cooperation with the University of California Agricultural Experiment Station.

Soil survey of the San Luis Obispo area, California /

Cover title.

Soil survey of the Santa Cruz area, California /

Bibliography: p. 90.

Soil survey of the Suisun area, California /

United States Department of Agriculture, Bureau of Chemistry and Soils in cooperatio with the University of California Agricultural Experiment Station.

Soil survey, Auburn area, California /

"In cooperation with the University of California Agricultural Experiment Station."

Soil survey of the Napa area, California /

In cooperation with the University of California Agricultural Experiment Station."