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2. Soil test - Wikipedia

   en.wikipedia.org/wiki/Soil_test

   A soil test is a laboratory or in-situ analysis to determine the chemical, physical or biological characteristics of a soil. Possibly the most widely conducted soil tests are those performed to estimate the plant-available concentrations of nutrients in order to provide fertilizer recommendations in agriculture.

3. Rattan Lal - Wikipedia

   en.wikipedia.org/wiki/Rattan_Lal

   Rattan Lal. University of Sydney, Australia 1968-69; International Institute of Tropical Agriculture, Ibadan, Nigeria, 1969-87; The Ohio State University, Columbus, OH, USA 1987-2010. Rattan Lal (born 5 September 1944) is a soil scientist. His work focuses on regenerative agriculture through which soil can help resolve global issues such as ...

4. Solid Waste Authority of Central Ohio - Wikipedia

   en.wikipedia.org/wiki/Solid_Waste_Authority_of...

   The Solid Waste Authority of Central Ohio ( SWACO) was established by the Ohio General Assembly in 1989 as part of Ohio House Bill 592, which created Ohio’s current solid waste management planning and regulatory programs. [1] [2] SWACO is a government-run entity responsible for the safe and sanitary management of all solid waste within its ...

5. Cone penetration test - Wikipedia

   en.wikipedia.org/wiki/Cone_penetration_test

   The cone penetration or cone penetrometer test ( CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the Dutch Laboratory for Soil Mechanics in Delft to investigate soft soils. Based on this history it has also been called the "Dutch ...

6. Ohio State hosts NASA contest seeking ideas to better feed ...

   www.aol.com/growing-food-space-ohio-state...

   Interstellar Labs' modular bioregenerative system for producing microgreens, vegetables, mushrooms and insects on display at Ohio State University's Nationwide & Ohio Farm Bureau 4-H Center on Aug ...

7. Research and development in Ohio - Wikipedia

   en.wikipedia.org/wiki/Research_and_development...

   In 2006, the state had a high-tech payroll of $9.8 billion, with 155,174 high-tech employees at 10,756 high tech locations. In 2005, industry in Ohio spent $5.9 billion on research and development, with colleges spending $1.5 billion, but by 2009, $8.2 billion in R&D contracts were identified, ranking 13th nationally.

8. Proctor compaction test - Wikipedia

   en.wikipedia.org/wiki/Proctor_compaction_test

   The Proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type will become most dense and achieve its maximum dry density. The test is named in honor of Ralph Roscoe Proctor [ de], who in 1933 showed that the dry density of a soil for a given compactive effort depends on ...

9. Percolation test - Wikipedia

   en.wikipedia.org/wiki/Percolation_test

   Percolation test. A percolation test (colloquially called a perc test) is a test to determine the water absorption rate of soil (that is, its capacity for percolation) in preparation for the building of a septic drain field (leach field) or infiltration basin. [ 1] The results of a percolation test are required to properly design a septic system.