garmn rhino its got the weather channels , gps, and radio it might be a little more than just an average gps but well worth it. I lost one last year hunting deer and i had to buy another one i could have cried but didn't. WELL WORTH THE MONEY!
It depends on why you want it. I have a low-end gps that works fine for me. I only use it to mark the truck and camp just in case I get turned around and mark the spot where my meat is when I have to make multiple trips to pack it out.
I have a Garmin Rhino, they come in very handy if you hunt in groups or just have friends to help pack meat out. You can view the locations of your friends as well as send them waypoints. Not to mention the radio functions and weather channels. I love mine.
Get a Garmin with the high sensitivity receiver (I think most have it now). For years I used my "low-end" Magellan and it did just fine, until last year. We got into thick timber and some steep valleys and I lost the GPS signal numerous times. My buddy had a 60csx and never lost signal. I now have a Garmin Rino 530hcx and can't wait to use it in about 3 weeks! It picks up the signal fast, holds the signal, and has real good battery life. Another nice feature to mention is that if your buddies have Rino's as well, you can see where they are in relation to your position.
Let me start off by saying I am not a farmer.
I am a deer hunter and I do own a tractor and have all of the equipment - but that does not make you a farmer any more than standing in the garage makes you a car - well, you get the picture!
Having said that - and with most of my ineptitude fairly well hidden - I do think that buckwheat is one of the most under rated cover crops out there.
I say cover crop because I see mixed results as it relates to the deer eating the plants.