16

14-

12


10o


8

6-

4-

2-


Hay (16% moisture) Yield (tons/acre)


Nitrogen Source
I Ammonium Nitrate


0 200 400 600 800


0 200 400 600 800


0 200 400 600 800


Figure 1.


 Nitrogen Rate (Ibs/acre)
Hay yield of coastal bermudagrass in response to N-rates supplied from
ammonium nitrate and ammonium sulfate in 1986, 1987, and 1988.


-t~rae-