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PAT/FACT Recertification

https://hardin.osu.edu/news/patfact-recertification

they can attend a three-hour training to become certified or study the fertilizer manual and take ...

Master Gardener Volunteer Training Offered

https://hardin.osu.edu/news/master-gardener-volunteer-training-offered-2

training is $150.00 and includes the training manual and materials for the class. There is also ...

Master Gardener Volunteer Training Offered

https://hardin.osu.edu/news/master-gardener-volunteer-training-offered-1

training is $150.00 and includes the training manual and materials for the class. There is also ...

soil As minerals. Average U.S. background soil As ranges from 140 mg kg-1 As and average around 5 mg ... kg-1 As. In central Ohio the maximum background As concentration is around 21 mg kg-1[2], and soils ...

Soil Contaminant Myths and Facts

https://dirt.osu.edu/myths-and-facts

screening limit of 400 mg/kg, which is used to identify soils safe for residential use. However, the only ... Facts: Soils with very low lead levels below 100 mg/kg can be used without concern. Soils with low to ... moderate lead levels (100 mg/kg- 800 mg/kg) can be gardened when best practices and soil treatments are ...

Cadmium

https://dirt.osu.edu/soil-cadmium

plants, while lead and arsenic are not. Average U.S. background soil Cd 0.1-1.0 mg kg-1 Cd [1]. In central ... Ohio the maximum background Cd concentration is around 0.8 mg kg-1 [2], and soils with Cd ...

Soil Lead

https://dirt.osu.edu/soil-lead

naturally occurring soil lead minerals. Average U.S. background soil Pb 22 mg kg-1 Pb [1]. In central Ohio ... the maximum background Pb concentration is around 41 mg kg-1 [2], and soils with Pb concentrations ...