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Understanding your lawn and garden soil test
(Oklahoma Cooperative Extension Service, 2021-07)
Oklahoma forage and pasture fertility guide
(Oklahoma Cooperative Extension Service, 2018-02)
Oklahoma lawn and garden soil test summary 2015-2019
(Oklahoma Cooperative Extension Service, 2021-07)
Importance of sampling depth for soil health assessment
(Oklahoma Cooperative Extension Service, 2019-03)
Nitrogen rich strips
(Oklahoma Cooperative Extension Service, 2010-07)