, Unitri, Indonesia
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Journal of Degraded and Mining Lands Management Vol. 4 No. 4 (2017) - Research Article
Residual effect of potassium fertilizer and biochar on growth and yield of maize in the second season
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International Research Centre for the Management of Degraded and Mining Lands (IRC-MEDMIND),
Department of Soil, Faculty of Agriculture, Brawijaya University, Jalan Veteran, Malang 65145, Indonesia.