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Environmental Soil Issues: Garden Use of Treated Lumber
Environmental Soil Issues: Garden Use of Treated Lumber - Articles Articles
Many gardeners are concerned that the chemicals used to preserve the lumber could harm garden plants and the people who eat them. More
Use of Biosolids in Crop Production Use of Biosolids in Crop Production - Articles

Use of Biosolids in Crop Production

Richard Stehouwer, Ph.D.

Characteristics of various types of biosolids and discusses management, regulatory, and other practical issues regarding their use on cropland. More
K.A. Barbarick, Bugwood.org
Sewage Sludge - A Plain English Tour of the Regulations - Articles Articles
At first reading, regulatory language often is difficult to understand because it is written to be technically accurate and legally precise. More
What is sewage sludge and what can be done with it? What is sewage sludge and what can be done with it? - Articles
In this document, “sewage sludge” will refer to wastewater treatment solids generally, and “biosolids” will refer specifically to material that is suitable for land application. More
Calibration of Grain/Seed Drills
Calibration of Grain/Seed Drills - Articles Articles

Calibration of Grain/Seed Drills

Sjoerd Willem Duiker, Ph.D., CCA, Ron Hoover

The seed delivery system in drills is not as precise as that used in planters because they use flutes or sponges to meter seed instead of seed singulation. More
Earthworms
Earthworms - Articles Articles

Earthworms

Sjoerd Willem Duiker, Ph.D., CCA, Richard Stehouwer, Ph.D.

The burrowing and feeding activity of earthworms have numerous beneficial effects on overall soil quality for crop production. More