Araujo, Ademir S. F., Federal University of Piauí, Agricultural Science Center, Soil Quality Laboratory, Campus da Socopo, CEP 64000-000, Teresina, PI, Brazil

• Spanish Journal of Agricultural Research Vol. 12 No. 4 (2014) - Soil science
  Short communication. Growth and nodulation of cowpea after 5 years of consecutive composted tannery sludge amendment
  Abstract  PDF