Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol
Major, Julie ; Rondon, Marco ; Molina, Diego ; Riha, Susan J ; Lehmann, Johannes
Plant and soil, 2010-08, Vol.333 (1-2), p.117-128 [Periódico revisado por pares]Dordrecht: Dordrecht : Springer Netherlands
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