A system operable to apply an agricultural input and harvesting an agricultural output in a management zone , the system comprising: a dispensing system operable to dispense the agricultural input ; and a controller operatively connected to the dispensing system and configured to change the dispensement of the agricultural input from the dispensing system in a selected location within the management zone and to replicate a rate of dispensement of the agricultural input in at least one additional location in the management zone ; and a harvesting system operable to harvest the agricultural output and including a sensor operatively connected to the harvesting system and configured to record a yield data in order to associate the yield data with the actual location for the rate of dispensement of the agricultural input ; wherein the selected location is a location that has been randomized within at least one predefined test plot (212, 212a-c) within the management zone , and wherein the rate of dispensement of the agricultural input is replicated in at least one additional location in the predefined test plot (212, 212a-c) of the management zone ; characterized in that the system comprises system logic that is configured for identifying a machine including the dispensing system for providing agricultural input having at least one constraint required for input rate changes, and for determining a constraint required for a crop yield to pass the sensor of the harvesting system; and for incorporating the constraint into a determination of a minimum treatment area within the test plot (212, 212a-c) in order to account for the constraint while dispensing the agricultural input , wherein each location for each of the two or more treatment levels conforms to the constraint. a dispensing system operable to dispense the agricultural input ; and a controller operatively connected to the dispensing system and configured to change the dispensement of the agricultural input from the dispensing system in a selected location within the management zone and to replicate a rate of dispensement of the agricultural input in at least one additional location in the management zone ; and a harvesting system operable to harvest the agricultural output and including a sensor operatively connected to the harvesting system and configured to record a yield data in order to associate the yield data with the actual location for the rate of dispensement of the agricultural input ; wherein the selected location is a location that has been randomized within at least one predefined test plot (212, 212a-c) within the management zone , and wherein the rate of dispensement of the agricultural input is replicated in at least one additional location in the predefined test plot (212, 212a-c) of the management zone ; characterized in that the system comprises system logic that is configured for identifying a machine including the dispensing system for providing agricultural input having at least one constraint required for input rate changes, and for determining a constraint required for a crop yield to pass the sensor of the harvesting system; and for incorporating the constraint into a determination of a minimum treatment area within the test plot (212, 212a-c) in order to account for the constraint while dispensing the agricultural input , wherein each location for each of the two or more treatment levels conforms to the constraint. <EOS>