Lumbanraja, Jamalam, Department of Soil Science Faculty of Agriculture University of Lampung, Jln. Prof. Soemantri Brodjonegoro, No. 1, Bandar Lampung 35145, Indonesia, Indonesia
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Vol 22, No 2: May 2017 - Articles
Phosphorus Extraction from Soil Constituents Using Bray P-1, Mehlich-1 and Olsen Solutions
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