Soil

Soil Science Simplified

By Helmut Kohnke and D.P. Franzmeier. 24 illustrations. Fourth Edition. 162 pages, 5-3/4" x 8-3/4". Softcover.
Recommended for people who don’t have the time to devote to an... More.

Backpack Lab™ Soil Quality Education Test Kit

Designed to provide a complete unit to introduce important chemical tests to evaluate soil quality and fertility, and relate these measurements to the principles of plant metabolism. The components... More.

Worm Vue Wonders™

This entertaining, educational kit reveals the amazing world of earthworms. Discover how earthworms dig without hands, hear without ears, see without eyes, smell without noses, and move without fee... More.

Soil Test Kit with 40 Tests

Contains liquid reagents and equipment for 40 tests. 10 tests each for soil pH, nitrogen, phosphorous, and potash. More.

Soil Test Kit with 200 Tests

Contains liquid reagents and equipment for 200 tests. 50 tests each for soil pH, nitrogen, phosphorous, and potash. More.

Soil pH Tester with 30 Tests

Contains liquid reagents and equipment for 30 tests. More.

Soil Classes

The separates alone are only the beginning of soil textural study, since they are not found pure in nature, but are always mixed. It is the natural mixture found in the field and known as soil clas... More.

Chemical Composition of the Soil

This kit allows people to perform chemical determinations on locally derived soils for the following components: percentage of water; soil organic content; pH (hydrogen ion concentration); reagent ... More.

Biology and Chemistry of Soil Experiment Kit

Using ordinary soil samples and simple, easy-to-follow techniques and staining procedures, identify the type and variety of microorganisms; calculate soil fertility by a cation exchange capacity el... More.

What’s in the Soil?

Using ordinary soil, perform comprehensive soil nutrient and mineral analysis, testing for the presence of 10 nutrients and minerals necessary for adequate plant development. Also determine water c... More.