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Now showing items 11-15 of 15
Sulfur requirements of Oklahoma crops
(Oklahoma Cooperative Extension Service, 2013-12)
Alum-treated poultry litter as a fertilizer source
(Oklahoma Cooperative Extension Service, 2013-02)
Reclaiming slick-spots and salty soils
(Oklahoma Cooperative Extension Service, 2013-03)
Cause and effects of soil acidity
(Oklahoma Cooperative Extension Service, 2013-12)
Collecting forage samples for analysis
(Oklahoma Cooperative Extension Service, 2013-03)