DPR agriculture is the process of manufacturing any type of material without producing waste.
A common example is 3D printing, which builds up objects with materials, layer by layer. When design flaws are found, all it takes to correct them is to build an additive layer on top of them and start over. Most processes that involve cutting or shaping existing materials into usable objects also amount to DPR - for us designers, this means designing with an eye towards what can be created using unwanted matter.