yep, they're pretty much all the same. app rate is going to depend on your pattern width, ground speed, gate setting, and the humidity that day (dry fertilizer flows faster than damp at a given gate setting).
if you get your fertilizer in 50# bags, i'd toss 1 bag in, pick a ground speed that is a comfortable speed to drive, figure out how wide it spreads (remember to overlap some), pick a gate setting, and see how far you go with it. figure out the acreage and adjust the gate setting up or down, try another bag. when you're close enough, go for it.
another approach is make sure you are under-applying, do the whole field, then you'll know what you did (write down that info for next year) and you can make adjustments to make up the difference the second time over.
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.