NOVELTY - A biochar generator comprises: a pyrolysis chamber (303); a heater (304) connected to the pyrolysis chamber; a biochar collection chamber (308) in communication with the pyrolysis chamber; a biochar collection chamber sensor to sense a composition of the biochar collected in the biochar collection chamber to define a sensed composition of the biochar; and a controller in electrical communication with the biochar collection chamber sensor, and utilizes the sensed composition of the biochar to dynamically alter conditions in the pyrolysis chamber to alter composition of the biochar.    USE - As biochar generator useful for generating biochar (claimed).    ADVANTAGE - The present biochar generator includes a pyrolysis chamber whose conditions may be modified dynamically. The conditions of the chamber are modified to advantageously change the composition of the output products such as the biochar, bio oil and synthesis gases. The conditions of the chamber may also be modified to alter the amount or ratio of the products produced by the pyrolysis reaction. The present biochar generator eliminates the need to transport biomass to remote locations for fragmentation, pyrolysis and ultimate application. This is accomplished by providing a biochar generator onboard the machinery harvesting the biomass. The biochar generator is provided onboard a vehicle towed behind the machinery harvesting the biomass. Additionally, the present biochar generator is provided onboard an independently operated vehicle following behind the machinery harvesting the biomass.    DETAILED DESCRIPTION - A biochar generator comprises: a pyrolysis chamber (303); a heater (304) connected to the pyrolysis chamber; a biochar collection chamber (308) in communication with the pyrolysis chamber; a biochar collection chamber sensor to sense a composition of the biochar collected in the biochar collection chamber to define a sensed composition of the biochar; and a controller in electrical communication with the biochar collection chamber sensor, and utilizes the sensed composition of the biochar to dynamically alter conditions in the pyrolysis chamber to alter the composition of the biochar. The biochar generator further comprises: a vapor condenser (305) connected to the pyrolysis chamber; a synthesis gas collection chamber (306) in communication with the vapor condenser to collect synthesis gas from the vapor condenser; a bio oil collection chamber (307) in communication with the vapor condenser to collect bio oil from the vapor condenser; a bio oil collection chamber sensor to sense a composition of the bio oil collected in the bio oil collection chamber to define a sensed composition of the bio oil; and a synthesis gas collection chamber sensor to sense a composition of the synthesis gas collected in the synthesis gas collection chamber to define a sensed composition of the synthesis gas. The conditions dynamically altered in the pyrolysis chamber modify at least one of carbon content of the biochar, absorption properties of the biochar, or a ratio of biochar, synthetic gas and bio oil produced by the pyrolysis chamber. The biochar collection chamber sensor is a laser sensor. The biochar generator further comprises an auger (302) having an opening formed in it and connected to the pyrolysis chamber to accept a flow of biomass; and a biochar application device to selectively permit application of the biochar. An INDEPENDENT CLAIM is included for generating biochar using a biochar generator involving: sensing a composition of the biochar collected in the biochar collection chamber to define a sensed composition of the biochar; and utilizing the sensed composition of the biochar to dynamically alter conditions in the pyrolysis chamber to alter the composition of the biochar.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram showing a system and method of generating and using biochar, synthesis gas and bio oil using a biochar generator to be carried by a vehicle.    Biomass (301)    Auger (302)    Pyrolysis chamber (303)    Heater (304)    Vapor condenser (305)    Syngas filtration (306)    Bio oil collection (307)    Biochar collection chamber (308)    Biochar cooling area (310)