A seeding machine includes a main frame (14) and a row unit (118, 18) coupled to the main frame (14). The row unit (118, 18) has a row unit (118, 18) frame (130, 30) and a seed firmer coupled to the row unit (118, 18) frame (130, 30). The seeding machine also includes a seed detection sensor (148) coupled to the seed firmer. The seed detection sensor (148) is configured to detect seed position within an open furrow (136).