Brazilian farmers double cropped soybeans in unprecedented numbers in 2014.
Second-crop soy area reached approximately 600,000 acres this season, double the year before, but yields were disappointing.
Agronomists are concerned that second-crop soybeans offer an ideal environment for disease such as Asian rust and pests such as the Helicoverpa armigera caterpillar to pass the winter, leading to higher populations in summer crops, greater chemical resistance and higher input costs.
In the face of this threat, Agriculture Ministry's crop health commission will this week meet in Varzea Grande, Mato Grosso to discuss whether to ban the practice.
"Successive planting of soybeans ...