The Earthway 2750 Nylon Bag Seeder/Spreader is a handy piece of gear to have around. I’ve used mine for spreading fall rye and oats as green manure cover crops on relatively small sections, 2,500-5,000 sqf. You could probably get by with it for up to an acre or two. eventually, the walking and refilling would get a little long and a bigger solution would be…better. I haven’t used it that much, but it’s been around and held up well—solid for medium duty use at the price.
Specs from Earthway: “Corrosion, tear and weather resistant 20lb/9kg nylon bag hopper is equipped with a zippered top for easy filling and closure. This nylon construction allows for the bag to remain upright when filling yet collapse for easy storage. From the contoured base for fitting around your hip, the adjustable shoulder strap and a long crank handle, the 2750 is designed with comfortable operation in mind. The Exclusive Rocking Agitator provides smooth, even material feeding to the distribution plate. Our high-speed direct drive gear box allows the operator to adjust the spread width between 8’/215cm-12’/457cm by simply changing the crank rate. Complete directional control and spring to close shut-off makes the 2750 the ultimate choice in hand operated spreaders.”