Nursyamsi, Dedi, Indonesian Agricultural Environment Research Institute, Jl. Raya Jakenan-Jaken Km 05, PO Box 05, Jakenan, Pati 59182, Indonesia
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Vol 14, No 3: September 2009 - Articles
Effect of Oxalic Acid, Na+, NH4+, and Fe3+ on Release of Fixed Potassium and Basal Distance of Smectite in Smectitic Soils
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