An agricultural system functions with all its inputs and outputs Inputs include all materials such as fertilizer, irrigation,pesticides etc Outputs are the gains from the system in any form such as grains,leaves,stems,roots etc. An agricultural system functions An agricultural system functions with all its inputs and outputs with all its inputs and outputs Inputs include all materials such as fertilizer, irrigation, pesticides etc Outputs are the gains from the system in any form such as grains, leaves, stems, roots etc