System for spraying plants and/or plant precursors

A system for automatically sensing and spraying plant precursors being distributed at least one of on and within the ground, the system comprising:

• a sensor configured to detect plant precursors dropping through a tube;
• a nozzle assembly configured to control the release of a fluid, the nozzle assembly including a valve and a spray nozzle;
• and
• a controller communicatively coupled to the sensor and the nozzle assembly, the controller being configured to operate the valve at a constant pulse duration irrespective of a ground speed of the system such that an amount of fluid is sprayed onto or adjacent to each plant precursor after each plant precursor is dropped from the tube.

A system for automatically sensing and spraying plant precursors being distributed at least one of on and within the ground, the system comprising:

• a sensor configured to detect plant precursors dropping through a tube;
• a first nozzle assembly configured to control the release of a fluid, the first nozzle assembly including a valve and a spray nozzle;
• a second nozzle assembly configured to control the release of the same type of fluid or a different type of fluid as the first nozzle assembly, the second nozzle assembly including a valve and a spray nozzle;
• and
• a controller communicatively coupled to the sensor, the first nozzle assembly and the second nozzle assembly, the controller being configured to operate each valve such that an amount of fluid is sprayed at least one of onto and adjacent to each plant precursor by the first and second nozzle assemblies after each plant precursor is dropped from the tube.