| abstract |
Disc openers ( 14 ) for use with an air seeder ( 10 ) are configured for seeding and fertilizing a field (G). The opener ( 14 b ) broadly includes a coulter disc ( 20 ), a seed boot ( 24 ), and a fertilizer injector wing ( 26 ). The fertilizer injector wing ( 26 ) is configured for fixed attachment to the seed boot ( 24 ) and broadly includes a body ( 48 ), including an angled outboard portion ( 56 ), a toxic fertilizer injector ( 50 ), and a non-toxic fertilizer injector ( 52 ). The opener ( 14 b ) with the fertilizer injector wing ( 26 ) is configured to place the seed row (S) and the dedicated fertilizer band (DB) at an optimum geometric positional alignment relative to the seed row (S), in a single, low soil disturbing planting pass without disrupting the seed bed (BS). In alternative wings ( 300 and 400 ), the sufficiently safe geometric positioning is accomplished by the force of delivery of the fertilizers (N and P) coupled with an offset angle (OA) defined between a fertilizer injection axis (AF) and a seed outlet axis (AO). |