Down below they are talking about sickle mowers versus haybines. I pointed out how much the haybine meant to making hay upon its introduction. What were some of the other important innovations of the 20th Century in farm equipment? Auger-flail system in a manure spreader? Fine even spread of material versus chunks of manure flopping over the back of a box-beater spreader. Cylinder cutterhead in a forage harvester. Even cut of material along with the ability to process more material per minute versus a flywheel type harvester. Rotary combine which allows harvest of material in tough conditions versus a cylinder machine. Depth wheel at the seed drop point along with separate closing wheel system on a row crop planter.