This photo shows researchers doing field sampling of a pyrite-rich black shale outcrop in China. The weathering of such sediments, which contain sulfur originally buried from the ocean, transfers ...

Mastering environmental sampling from field to lab From collecting soil and water in the field to processing them in the lab, environmental sampling is a precise science. Every step—from choosing the ...

Agricultural soil testing is critical to determining soil’s nutrient concentration and variability across your fields. It is ideal to test your fields’ soil at least every two to three years to inform ...

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