TY  - SER
AU  - Vazin,F.
TI  - The effects of pigweed redroot (Amaranthus retoflexus)weed competition and its economic thresholds in Corn (Zea mays)
KW  - MILHO
KW  - ZEA MAYS
KW  - CARURU
KW  - RENDIMENTO
KW  - DENSIDADE DE SEMEADURA
ER  -