Bahiagrass cultivar trial
A third year's data was obtained from a trial planted on 16 April 97 on a Dothan fine sandy loam
(Plinthic Paleudult). This trial contained six entries. An application of 400 pounds per acre of an
8-24-24 fertilizer was made on 20 April 99. Ammonium nitrate was applied at 100 pounds per
acre on 2 June, 16 July, 5 Aug., and 8 Sept. 99. Harvests were obtained on 27 May, 30 June, 28
July, 30 Aug., and 14 Oct.. Yields were considerably lower than in 1998. Yield data are
presented in Table 7.

Summer Annual Grasses.
This trial contained five millet entries and five sorghum-sudangrass hybrid entries. The trial was
planted on 29 April 99 on an Orangeburg sandy loam (Typic Paleudult). An application of 400
pounds per acre of 8-24-24 fertilizer was made on 13 April 99. Ammonium nitrate was applied at
200 pounds per acre on 28 June and at 100 pounds per acre on 29 July and 8 Sept. 99. Four
harvests were obtained. These were on 18 June, 23 July, 30 Aug., and 5 Oct.99. Data are
presented in Tables 8 and 9.

Gamagrass and Pennisetum orientale.
Five gamagrass entries and six introductions ofPennisetum orientale along with a Big bluestem
entry were set into a row trial on 17 September 98. Plants were added as seemed necessary on 28
April 99. These additional plants were from the greenhouse. The trial was located on an
Orangeburg sandy loam (Typic paleudult). Rows were 12 feet long on 5- foot spacing which was
probably a little wide but allowed for easier handling of equipment The original setting was of
rooted plant divisions from old plantings at WFREC. This process was probably more favorable
to the Pennisetums and is probably reflected in the yields. An application of 400 pounds per acre
of 8-24-24 fertilizer was made on 13 May 99. Ammonium nitrate was applied at 200 pounds per
acre on 16 July 99 and at 100 pounds per acre on 8 Sept 99. Harvests were made on 6 July, 18
Aug., and 23 Sept. 99. Yield data are presented in Table 10.

Florakirk bermudagrass.
A long-term fertility trial was begun on Florakirk bermudagrass in 1989. Five rates of fertilizer
have been applied each year. Elements were balanced in a 2-1-1 NPK regime. Nitrogen has been
applied from very low to very high rates (31.25 500 lbJacre N) with each higher rate twice that
of the next lower rate. The trial was located on an Orangeburg sandy loam (Typic Paleudult). All
P and K were applied in the spring along with the first of three equal applications of N. Over the
years, invading grasses have about taken over some of the stands at the lower fertility levels. In
some years we have been able to control invaders to some extent. In 1999, the very low yields at
the low rates were mostly due to stand loss. Weedy invaders were not counted in the yield. Yield
data for 1999 are presented in Table 11.

Alfalfa cultivar trial.
Fifteen cultivars of alfalfa were planted on 13 December 1998 on a Fuquay loamy sand (Plinthic
Paleudult). Prior to planting, 400 pounds per acre of 0-30-15 fertilizer was disked into the soil
Four pounds per acre of elemental boron was applied on 23 December 98. An application of 200
pounds per acre of 60% muriate of potash was made on 28 June 99. Harvestes were obtained on
3 May, 17 June, 26 July, and 8 Sept. 99. Average total yields varied from 10,490 pounds per acre
to 7,930 pounds per acre; however, due to considerable variability there was no significant
difference at any harvest (t.05). Yield data are given in Table 12.