Table 4.
Herbage mass and chemical composition of hand-plucked samples of palisade grass fertilized with urea (150 kg N/ha/yr, fertilized), mixed with forage peanut (mixed) and without N fertilization (control)1
Item2 | Treatments | SEM | P-value | ||
---|---|---|---|---|---|
Fertilized | Mixed | Control | |||
Herbage characters | |||||
Herbage mass, kg/ha | 4980 | 3690 | 4820 | 390 | 0.0702 |
Leaves, g/kg | 329 | 309 | 360 | 16 | 0.3985 |
Stem and sheath, g/kg | 302 | 263 | 255 | 18 | 0.5402 |
Dead material, g/kg | 371 | 271 | 364 | 28 | 0.1207 |
Herbage allowance1 | 7.55 | 6.52 | 7.55 | 0.7 | 0.5852 |
Leaf allowance1 | 3.27a | 1.94b | 2.72ab | 0.2 | 0.0294 |
Chemical composition | |||||
OM, g/kg DM | 897a | 883b | 893ab | 3 | 0.0466 |
Ash, g/kg DM | 101b | 117a | 107ab | 3 | 0.0327 |
CP, g/kg DM | 112a | 85b | 83b | 5 | <0.0001 |
TC, g/kg DM | 756b | 794a | 792a | 7 | 0.0002 |
NFC, g/kg DM | 169 | 178 | 156 | 8 | 0.4958 |
NDF, g/kg DM | 589b | 601ab | 618a | 6 | 0.0355 |
Hemicellulose, g/kg DM | 300b | 305ab | 311a | 4 | 0.0093 |
ADF, g/kg DM | 296 | 302 | 307 | 4 | 0.2749 |
Cellulose, g/kg DM | 259b | 268b | 285a | 4 | 0.0010 |
Lignin, g/kg DM | 25 | 26 | 27 | 4 | 0.9529 |
EE, g/kg DM | 19 | 17 | 19 | 0.4 | 0.143 |
DMD, g/kg DM | 620 | 567 | 604 | 15 | 0.3860 |
Energy, MJ/kg DM | 189a | 180b | 180b | 0.6 | <0.0001 |
TDN, g/kg DM | 575 | 518 | 553 | 15 | 0.3540 |
1Average 2-yr evaluation (n = 16).
2BW = body weight; OM = organic matter; CP = crude protein; NDF = neutral detergent fiber; ADF = acid detergent fiber; EE = ether extract; DMD = dry matter digestibility; TC = total carbohydrates; NFC = nonfibrous carbohydrates; TDN = total digestible nutrients.a,bMeans followed by the same letters in the line did not differ by Tukey HSD test (P < 0.05).