2301-1548 2301-1548 S2301-15482019000100076 10.31285/agro.23.1.3 Uruguay 00 06 2019 00 06 2019 23 1 76 79

1. 2002 2. 1995 8 17-32 3. 2003 4. 2002 17-24 5. 1971 104 6. 2004 26-52 7. HELM 2004 8. 2011 21 1-11