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Little River, TX | I like anhydrous because of the logistics. I can put 400 lbs of N into my bermudagrass hay fields no problem with AA but need 1250 lbs of 32 to get the same amount of nitrogen out.
Advantage #2 is the ammonia will tie to the clay particles and become a slow release fertilizer. My bermudagrass fields have 50 meq/100g CEC. In theory a 50 CEC will hold 500 lbs of nitrogen. I have put 1500 lbs/A of AA into a test bermudagrass plot. Seven years later the hay production was just starting to go down. My cowboy math tells me this soil will hold 25 lbs of N for each meq/100g of CEC as long as it is anhydrous.
Advantage #3 is if I put my phosphate down in the same slot as the AA the phosphate will remain available longer than put down a slot with no ammonia.
Not only is this soil a heavy clay with a high CEC but it is also calcareous with 4% to 6% free lime to compliment the 7,000 ppm Ca reported by soil testing.
I figure working with anhydrous is safer than flying training missions in a B-52. Probably no more hazardous than driving to town for a haircut! | |
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Why do you choose to or not to use anhydrous?
