Disclosed herein are precision seeder heads and seeder components that include precision seeder heads. According to some embodiments, a precision seeder head (500, 505) includes a seed queue tube (560) having an inside circumference that is sized to accommodate one seed (512, 514, 5) at any vertical location, a first seed hold (530, 540) that selectively blocks the seed queue tube (560) when located in a default position and selectively unblocks the seed queue tube (560) when located in the release position, and an optical sensor (550) positioned at a vertical position below the first seed hold (530, 540), the optical sensor (550) adapted to detect seeds (512, 516) dispensed from the seed queue tube (560). Disclosed herein are precision seeder heads and seeder components that include precision seeder heads. According to some embodiments, a precision seeder head (500, 505) includes a seed queue tube (560) having an inside circumference that is sized to accommodate one seed (512, 514, 5) at any vertical location, a first seed hold (530, 540) that selectively blocks the seed queue tube (560) when located in a default position and selectively unblocks the seed queue tube (560) when located in the release position, and an optical sensor (550) positioned at a vertical position below the first seed hold (530, 540), the optical sensor (550) adapted to detect seeds (512, 516) dispensed from the seed queue tube (560).En la presente se divulgan cabezales de sembradora de precisión y componentes de sembradora que incluyen cabezales de sembradora de precisión. De acuerdo con algunas formas de realización, un cabezal de sembradora de precisión (500, 505) incluye un tubo de fila de semillas (560) que tiene una circunferencia interna que está dimensionada para acomodar una semilla (512, 514, 5) en cualquier ubicación vertical, un primer compartimiento de semillas (530, 540) que selectivamente bloquea al tubo de fila de semillas (560) cuando está ubicado en su posición determinada p
