TY  - SER
AU  - Martins,B.H.
AU  - Araujo-Junior,C.F.
AU  - Miyazawa,M.
AU  - Vieira,K.M.
TI  - Humic substances and its distribution in coffee crop under cover crops and weed control methods
KW  - CAFEICULTURA
KW  - ERVA DANINHA
KW  - MATERIA ORGANICA
KW  - HUMUS
KW  - COBERTURA DO SOLO
KW  - ANALISE
ER  -