Table 7.
Concentration of ADL (%, DM basis) in stockpiled “Tifton 85” bermudagrass receiving different rates of N fertilization, and in “Tifton 85” bermudagrass hay in years 1 and 2
| Year | Sampling date | Treatment1 | Mean | |||
|---|---|---|---|---|---|---|
| 56N | 112N | 168N | HAY | |||
| 1 | Oct 24 | 1.6b | 1.4 b,c | 1.3c | 2.1a | 1.6f |
| Nov 28 | 1.8b | 1.9b | 1.9b | 2.9c | 2.1f | |
| Dec 13 | 3.1b | 3.0b | 3.0b | 3.5c | 3.2e | |
| Jan 4 | 4.3b | 4.2b | 4.2b | 4.4c | 4.3d | |
| Jan 16 | 4.5b | 4.9c | 4.9c | 5.3a | 4.9d | |
| Mean | 3.1h | 3.1h | 3.1h | 3.6g | ||
| 2 | Nov 11 | 1.8i | 1.7j | 1.9k | 3.7l | 2.3m |
| Nov 25 | 3.7i | 3.4j | 3.9k | 4.7l | 3.9n | |
| Dec 10 | 4.1i | 3.7j | 4.4k | 6.5l | 4.7o | |
| Jan 7 | 4.2i | 4.3j | 5.1k | 6.8l | 5.1p | |
| Jan 21 | 5.7i | 5.6j | 6.7k | 6.7k | 6.2q | |
| Mean | 3.9r | 3.7s | 4.3t | 5.7u | ||
a–cWithin a row, means without a common superscript differ (P < 0.05; SEM = 1.17; n = 2).
d–fWithin a column, means without a common superscript differ (P < 0.05; SEM = 1.17; n = 8).
g,hWithin a row, means without a common superscript differ (P < 0.05; SEM = 1.66; n = 10).
i–lWithin a row, means without a common superscript differ(P < 0.05; SEM = 0.03; n = 2).
m–qWithin a column, means without a common superscript differ (P < 0.05; SEM = 0.03; n = 8).
r–uWithin a row, means without a common superscript differ (P < 0.05; SEM = 0.04; n = 10).
156N = 56 kg N/ha; 112N = 112 kg N/ha; 168N = 168 kg N/ha; HAY = “Tifton 85” hay cut in August prior to stockpiling.