Evolution of crop yields in different tillage and cropping systems over two decades in southern Brazil

Field Crops Research - Tập 137 - Trang 178-185 - 2012
Julio Cezar Franchini1, Henrique Debiasi1, Alvadi Antonio Balbinot Junior1, Brenda Cristye Tonon1, José Renato Bouças Farias1, Maria Cristina Neves de Oliveira1, Eleno Torres1
1Embrapa Soja, PO Box 231, 86001-970 Londrina, PR, Brazil

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