54
4 10.9900 32.0600
18.4400 2.1200
5 10.9000 33.8000
3.1800 4.9100
total 48.1500 142.6700 37.0500
19.7500 rata-rata 9.6300
28.5340 7.4100 3.9500
P3 1 8.4900
20.1900 3.6900
0.9100 2 10.3800
30.4300 3.5100
7.2900 3 3.2100
24.7700 8.2800
3.3200 4 4.7500
25.5100 2.2600
2.7600 5 7.1600
33.5800 20.1900
2.6200
total 33.9900 134.4800 37.9300
16.9000 rata-rata 6.7980
26.8960 7.5860 3.3800
H. Berat Kering Total
Pupuk Jenis Tanaman gram
BKT Kayu putih Longkida Jati Akasia
P1 1 11.5000
37.9100 25.2000
5.0800 2 12.9600
47.5900 7.5600
3.5300 3 24.7300
31.5800 3.9100
4.0500 4 15.3700
38.1200 18.6100
4.9100 5 26.2900
44.6200 21.7800
6.6700
total 90.8500 199.8200 77.0600
24.2400 rata-rata 18.1700
39.9640 15.4120 4.8480
P2 1 7.6700
30.8300 2.8300
5.7400 2 17.2200
45.0800 5.9400
6.6100 3 9.4100
45.0500 12.0500
2.8100 4 14.8500
45.4500 30.7700
4.2000 5 14.6000
49.4100 4.9000
5.6900
total 63.7500 215.8200 56.4900
25.0500 rata-rata 12.7500
43.1640 11.2980 5.0100
P3 1 10.4600
53.2300 6.2800
1.4600 2 13.7800
41.2800 4.0700
9.9900 3 3.6300
35.9500 12.4600
6.6400 4 5.9200
39.3600 3.1300
3.2900 5 11.7200
46.6200 30.3600
3.6600
total 45.5100 216.4400 56.3000
25.0400 rata-rata 9.1020
43.2880 11.2600 5.0080
I. Nisbah Pucuk Akar
Pupuk NPA Jenis Tanaman
Kayu putih Longkida
Jati Akasia
P1 1 2.1680 2.2794
0.9134 6.9375
2 3.7823 1.1622 1.1416
3.0575 3 1.7600 2.1423
1.3841 2.8942
55
4 3.1995 1.9805 1.4649
5.7260 5 0.8672 2.4349
2.5300 3.8686
total 11.7770 9.9993 7.4341 22.4838
rata-rata 2.3554 1.9999 1.4868 4.4968
P2 1 6.8265 1.9112
1.2823 5.3077
2 2.6025 2.0771 1.5385
8.0548 3 3.1272 1.3823
5.6575 2.5125
4 2.8472 2.3943 1.4955
1.0192 5 2.9459 2.1653
1.8488 6.2949
total 18.3493 9.9303 11.8226
23.1891 rata-rata 3.6699
1.9861 2.3645 4.6378
P3 1 4.3096 0.6111
1.4247 1.6545
2 3.0529 2.8046 6.2679
2.7000 3 7.6429 2.2156
1.9809 1.0000
4 4.0598 1.8419 2.5977
5.2075 5 1.5702 2.5752
1.9853 2.5192
total 20.6354 10.0483 14.2564
13.0813 rata-rata 4.1271
2.0097 2.8513 2.6163
J. Kadar Air
Pupuk KA Jenis Tanaman
Kayu putih Longkida
Jati Akasia
P1 1 71.25
76.30625 66.4
66.1333 2 78.0338
75.2135 74.8
55.875 3
75.27 76.9489 92.4807 63.1818 4 73.0350
76.8969 67.3508
38.625 5
69.7816 75.6174 72.0769 64.8947
total 367.3705 380.9831 373.1085 288.7098
rata-rata 73.4741 76.1966 74.6217 57.7419
P2 1
71.5925 73.8728 81.1333 52.1666 2 75.4
65.5877 62.875
55.9333 3
75.2368 76.1640 47.6086 54.6774 4 73.4821
75.2989 67.6105
58 5 76.8253
78.7939 65
59.3571
total 372.5369 369.7175 324.2275 280.1345
rata-rata 74.5073 73.9435 64.8455 56.0269
P3 1
78.6530 73.5174 76.7407 51.3333 2 83.1951
74.6748 63
50.05 3 77.3125
77.6708 70.3333
58.5 4
78.8571 73.5838 60.875 58.875 5 69.9487
79.0941 70.2352
81.7
total 387.9665 378.5411
341.1844 300.4583
rata-rata 77.5933 75.7082 68.2369 60.0917
56
Lampiran 2. Rekapitulasi Hasil tabel anova dan hasil uji lanjut Fisher’s LSD A. Tinggi
Df Sum Sq Mean Sq F value PrF ulangan 4 56.9 14.2 0.7025 0.59444
jenis.tanaman 3 11596.3 3865.4 190.8294 2e-16 Kosentrasi.pupuk 2 26.2 13.1 0.6478 0.52814
jenis.tanaman:Kosentrasi.pupuk 6 345.5 57.6 2.8429 0.01992 Residuals 44 891.3 20.3
--- Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05
‘.’ 0.1 ‘ ’ 1 Study:LSD t Test for Tinggi
Mean Square Error: 20.25603 jenis.tanaman, means and individual 95 CI
Tinggi std.err replication LCL UCL Akasia 9.080741 0.9873688 15 7.090830 11.070652
Jati 1.511111 0.2029536 15 1.102085 1.920137 Kayu putih 35.526296 1.6849124 15 32.130578 38.922014
Longkida 28.798519 1.5589757 15 25.656609 31.940428 alpha: 0.05 ; Df Error: 44
Critical Value of t: 2.015368 Least Significant Difference 3.312080
Means with the same letter are not significantly different. Groups, Treatments and means
a
Kayu putih 35.52630
b Longkida
28.79852 c Akasia
9.08074 d Jati
1.511111 trt means M N std.err
Akasia :1 Min. : 1.511 a :1 Min. :15 Min. :0.2030
Jati :1 1st Qu.: 7.188 b :1 1st Qu.:15 1st Qu.:0.7913
Kayu putih:1 Median :18.940 c :1 Median :15 Median :1.2732
Longkida :1 Mean :18.729 d:1 Mean :15 Mean :1.1086
3rd Qu.:30.480 3rd Qu.:15 3rd Qu.:1.5905
Max. :35.526 Max. :15 Max. :1.6849
LCI UCI Min. : 1.102 Min. : 1.920
1st Qu.: 5.594 1st Qu.: 8.783 Median :16.374 Median :21.506
Mean :16.495 Mean :20.963 3rd Qu.:27.275 3rd Qu.:33.686
Max. :32.131 Max. :38.922
57
B. Diameter
Df Sum Sq Mean Sq F value PrF ulangan 4 0.708 0.1769 1.1934 0.3271
jenis.tanaman 3 55.379 18.4598 124.5299 2e-16 Kosentrasi.pupuk 2 0.089 0.0447 0.3013 0.7414
jenis.tanaman:Kosentrasi.pupuk 6 1.586 0.2643 1.7833 0.1247 Residuals 44 6.522 0.1482
--- Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05
‘.’ 0.1 ‘ ’ 1 Study: LSD t Test for Diameter
Mean Square Error: 0.1482355 jenis.tanaman, means and individual 95 CI
Diameter std.err replication LCL UCL Akasia 0.9418519 0.11752627 15 0.7049932 1.1787105
Jati 0.4285185 0.07333066 15 0.2807303 0.5763068 Kayu putih 1.4292593 0.08861808 15 1.2506612 1.6078573
Longkida 2.9959259 0.12395058 15 2.7461199 3.2457319 alpha: 0.05 ; Df Error: 44
Critical Value of t: 2.015368 Least Significant Difference 0.2833347
Means with the same letter are not significantly different. Groups, Treatments and means
a
Longkida 2.995926
b Kayu putih
1.429259 c Akasia
0.9418519 d Jati
0.4285185 trt means M N std.err
Akasia :1 Min. :0.4285 a :1 Min. :15 Min. :0.07333
Jati :1 1st Qu.:0.8135 b :1 1st Qu.:15 1st Qu.:0.08480
Kayu putih:1 Median :1.1856 c :1 Median :15 Median :0.10307
Longkida :1 Mean :1.4489 d:1 Mean :15 Mean :0.10086
3rd Qu.:1.8209 3rd Qu.:15 3rd Qu.:0.11913
Max. :2.9959 Max. :15 Max. :0.12395
LCI UCI Min. :0.2807 Min. :0.5763
1st Qu.:0.5989 1st Qu.:1.0281 Median :0.9778 Median :1.3933
Mean :1.2456 Mean :1.6522 3rd Qu.:1.6245 3rd Qu.:2.0173
Max. :2.7461 Max. :3.2457
58
C. Berat Basah Akar
Df Sum Sq Mean Sq F value PrF
ulangan 4 572.4 143.1 0.6818 0.6083
jenis.tanaman 3 27321.4 9107.1 43.3887 3.355e- 13
Kosentrasi.pupuk 2 467.6 233.8 1.1139 0.3373
jenis.tanaman:Kosentrasi.pupuk 6 368.2 61.4 0.2924 0.9374
Residuals 44 9235.4 209.9 ---
Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05 ‘.’ 0.1 ‘ ’ 1
Study: LSD t Test for BBA Mean Square Error: 209.8966
jenis.tanaman, means and individual 95 CI BBA std.err replication LCL UCL
Akasia 3.146667 0.6283665 15 1.880277 4.413056 Jati 18.466667 3.7756950 15 10.857253 26.076080
Kayu putih 19.533333 3.5211831 15 12.436855 26.629812 Longkida 60.666667 4.8615759 15 50.868804 70.464529
alpha: 0.05 ; Df Error: 44 Critical Value of t: 2.015368
Least Significant Difference 10.66170 Means with the same letter are not significantly different.
Groups, Treatments and means a
Longkida 60.66667
b Kayu putih
19.53333 b
Jati 18.46667
c Akasia 3.146667
trt means M N std.err Akasia :1 Min. : 3.147 a :1 Min. :15 Min.
:0.6284 Jati :1 1st Qu.:14.637 b :2 1st Qu.:15 1st
Qu.:2.7980 Kayu putih:1 Median :19.000 c:1 Median :15 Median
:3.6484 Longkida :1 Mean :25.453 Mean :15 Mean
:3.1967 3rd Qu.:29.817 3rd Qu.:15 3rd
Qu.:4.0472 Max. :60.667 Max. :15 Max.
:4.8616 LCI UCI
Min. : 1.880 Min. : 4.413 1st Qu.: 8.613 1st Qu.:20.660
Median :11.647 Median :26.353 Mean :19.011 Mean :31.896
3rd Qu.:22.045 3rd Qu.:37.588 Max. :50.869 Max. :70.465
59
D. Berat Basah Pucuk
Df Sum Sq Mean Sq F value PrF
ulangan 4 4336 1083.9 4.1032 0.006528
jenis.tanaman 3 94352 31450.7 119.0552 2.2e- 16
Kosentrasi.pupuk 2 160 80.2 0.3034 0.739833
jenis.tanaman:Kosentrasi.pupuk 6 1549 258.2 0.9775 0.451822
Residuals 44 11623 264.2 ---
Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05 ‘.’ 0.1 ‘ ’ 1
Study: LSD t Test for BBP Mean Square Error: 264.1689
jenis.tanaman, means and individual 95 CI BBP std.err replication LCL UCL
Akasia 9.20000 1.159639 15 6.862902 11.53710 Jati 24.53333 5.290483 15 13.871066 35.19560
Kayu putih 34.53333 2.999788 15 28.487657 40.57901 Longkida 111.93333 6.767898 15 98.293531 125.57314
alpha: 0.05 ; Df Error: 44 Critical Value of t: 2.015368
Least Significant Difference 11.96092 Means with the same letter are not significantly different.
Groups, Treatments and means a
Longkida 111.9333
b Kayu putih
34.53333 b
Jati 24.53333
c Akasia 9.2
trt means M N std.err Akasia :1 Min. : 9.20 a :1 Min. :15 Min.
:1.160 Jati :1 1st Qu.: 20.70 b :2 1st Qu.:15 1st
Qu.:2.540 Kayu putih:1 Median : 29.53 c:1 Median :15 Median
:4.145 Longkida :1 Mean : 45.05 Mean :15 Mean
:4.054 3rd Qu.: 53.88 3rd Qu.:15 3rd
Qu.:5.660 Max. :111.93 Max. :15 Max.
:6.768 LCI UCI
Min. : 6.863 Min. : 11.54 1st Qu.:12.119 1st Qu.: 29.28
Median :21.179 Median : 37.89 Mean :36.879 Mean : 53.22
3rd Qu.:45.939 3rd Qu.: 61.83 Max. :98.294 Max. :125.57
60
E. Berat Basah Total
Df Sum Sq Mean Sq F value PrF ulangan 4 5759 1440 2.2992 0.0738 .
jenis.tanaman 3 222488 74163 118.4441 2e-16 Kosentrasi.pupuk 2 1171 586 0.9352 0.4002
jenis.tanaman:Kosentrasi.pupuk 6 2814 469 0.7489 0.6135 Residuals 44 27550 626
--- Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05
‘.’ 0.1 ‘ ’ 1 Study: LSD t Test for BBT
Mean Square Error: 626.1402 jenis.tanaman, means and individual 95 CI
BBT std.err replication LCL UCL Akasia 12.34667 1.346667 15 9.632638 15.06070
Jati 43.00000 8.205689 15 26.462520 59.53748 Kayu putih 54.06667 6.139231 15 41.693859 66.43947
Longkida 172.60000 8.411330 15 155.648078 189.55192 alpha: 0.05 ; Df Error: 44
Critical Value of t: 2.015368 Least Significant Difference 18.41448
Means with the same letter are not significantly different. Groups, Treatments and means
a
Longkida 172.6
b Kayu putih
54.06667 b
Jati 43
c Akasia 12.34667 trt means M N std.err
Akasia :1 Min. : 12.35 a :1 Min. :15 Min. :1.347
Jati :1 1st Qu.: 35.34 b :2 1st Qu.:15 1st Qu.:4.941
Kayu putih:1 Median : 48.53 c:1 Median :15 Median :7.172
Longkida :1 Mean : 70.50 Mean :15 Mean :6.026
3rd Qu.: 83.70 3rd Qu.:15 3rd Qu.:8.257
Max. :172.60 Max. :15 Max. :8.411
LCI UCI Min. : 9.633 Min. : 15.06
1st Qu.: 22.255 1st Qu.: 48.42 Median : 34.078 Median : 62.99
Mean : 58.359 Mean : 82.65 3rd Qu.: 70.182 3rd Qu.: 97.22
Max. :155.648 Max. :189.55
61
F. Berat Kering Akar
Df Sum Sq Mean Sq F value PrF
ulangan 4 23.80 5.95 0.3249 0.8598
jenis.tanaman 3 1634.65 544.88 29.7515 1.152e- 10
Kosentrasi.pupuk 2 17.80 8.90 0.4859 0.6184
jenis.tanaman:Kosentrasi.pupuk 6 75.66 12.61 0.6885 0.6599
Residuals 44 805.84 18.31 ---
Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05 ‘.’ 0.1 ‘ ’ 1
Study: LSD t Test for BKA Mean Square Error: 18.31451
jenis.tanaman, means and individual 95 CI BKA std.err replication LCL UCL
Akasia 1.206000 0.2155233 15 0.7716414 1.640359 Jati 4.658000 1.0958207 15 2.4495185 6.866482
Kayu putih 4.010667 0.8905309 15 2.2159197 5.805414 Longkida 14.967333 1.5347218 15 11.8743048 18.060362
alpha: 0.05 ; Df Error: 44 Critical Value of t: 2.015368
Least Significant Difference 3.149353 Means with the same letter are not significantly different.
Groups, Treatments and means a
Longkida 14.96733
b Jati
4.658 bc Kayu putih
4.010667 c Akasia
1.206 trt means M N std.err
Akasia :1 Min. : 1.206 a :1 Min. :15 Min. :0.2155
Jati :1 1st Qu.: 3.309 b :1 1st Qu.:15 1st Qu.:0.7218
Kayu putih:1 Median : 4.334 bc:1 Median :15 Median :0.9932
Longkida :1 Mean : 6.210 c:1 Mean :15 Mean :0.9341
3rd Qu.: 7.235 3rd Qu.:15 3rd Qu.:1.2055
Max. :14.967 Max. :15 Max. :1.5347
LCI UCI Min. : 0.7716 Min. : 1.640
1st Qu.: 1.8549 1st Qu.: 4.764 Median : 2.3327 Median : 6.336
Mean : 4.3278 Mean : 8.093 3rd Qu.: 4.8057 3rd Qu.: 9.665
Max. :11.8743 Max. :18.060
62
G. Berat Kering Pucuk
Df Sum Sq Mean Sq F value PrF ulangan 4 200.7 50.18 2.9310 0.03115
jenis.tanaman 3 4820.5 1606.83 93.8565 2e-16 Kosentrasi.pupuk 2 24.8 12.42 0.7252 0.48991
jenis.tanaman:Kosentrasi.pupuk 6 56.8 9.46 0.5528 0.76514 Residuals 44 753.3 17.12
--- Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05
‘.’ 0.1 ‘ ’ 1 Study:LSD t Test for BKP
Mean Square Error: 17.12012 jenis.tanaman, means and individual 95 CI
BKP std.err replication LCL UCL Akasia 3.749333 0.4395436 15 2.863491 4.635175
Jati 7.998667 1.6185831 15 4.736627 11.260707 Kayu putih 9.330000 0.8453244 15 7.626361 11.033639
Longkida 27.171333 1.1848676 15 24.783390 29.559277 alpha: 0.05 ; Df Error: 44
Critical Value of t: 2.015368 Least Significant Difference 3.044929
Means with the same letter are not significantly different. Groups, Treatments and means
a
Longkida 27.17133
b Kayu putih
9.33 b
Jati 7.998667
c Akasia 3.749333
trt means M N std.err Akasia :1 Min. : 3.749 a :1 Min. :15 Min.
:0.4395 Jati :1 1st Qu.: 6.936 b :2 1st Qu.:15 1st
Qu.:0.7439 Kayu putih:1 Median : 8.664 c:1 Median :15 Median
:1.0151 Longkida :1 Mean :12.062 Mean :15 Mean
:1.0221 3rd Qu.:13.790 3rd Qu.:15 3rd
Qu.:1.2933 Max. :27.171 Max. :15 Max.
:1.6186 LCI UCI
Min. : 2.863 Min. : 4.635 1st Qu.: 4.268 1st Qu.: 9.434
Median : 6.181 Median :11.147 Mean :10.002 Mean :14.122
3rd Qu.:11.916 3rd Qu.:15.835 Max. :24.783 Max. :29.559 `
63
H. Berat Kering Total
Df Sum Sq Mean Sq F value PrF ulangan 4 285.2 71.3 1.5583 0.2022
jenis.tanaman 3 12042.0 4014.0 87.7234 2e-16 Kosentrasi.pupuk 2 60.7 30.3 0.6628 0.5205
jenis.tanaman:Kosentrasi.pupuk 6 240.1 40.0 0.8744 0.5214 Residuals 44 2013.3 45.8
--- Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05
‘.’ 0.1 ‘ ’ 1 Study:LSD t Test for BKT
Mean Square Error: 45.75753 jenis.tanaman, means and individual 95 CI
BKT std.err replication LCL UCL Akasia 4.955333 0.5333174 15 3.880503 6.030164
Jati 12.656667 2.6071270 15 7.402347 17.910986 Kayu putih 13.340667 1.5917261 15 10.132754 16.548580
Longkida 42.138667 1.6620400 15 38.789045 45.488288 alpha: 0.05 ; Df Error: 44
Critical Value of t: 2.015368 Least Significant Difference 4.978
Means with the same letter are not significantly different. Groups, Treatments and means
a
Longkida 42.13867
b Kayu putih
13.34067 b
Jati 12.65667
c Akasia 4.955333
trt means M N std.err Akasia :1 Min. : 4.955 a :1 Min. :15 Min.
:0.5333 Jati :1 1st Qu.:10.731 b :2 1st Qu.:15 1st
Qu.:1.3271 Kayu putih:1 Median :12.999 c:1 Median :15 Median
:1.6269 Longkida :1 Mean :18.273 Mean :15 Mean
:1.5986 3rd Qu.:20.540 3rd Qu.:15 3rd
Qu.:1.8983 Max. :42.139 Max. :15 Max.
:2.6071 LCI UCI
Min. : 3.881 Min. : 6.03 1st Qu.: 6.522 1st Qu.:13.92
Median : 8.768 Median :17.23 Mean :15.051 Mean :21.49
3rd Qu.:17.297 3rd Qu.:24.81 Max. :38.789 Max. :45.49
64
I. Nisbah Pucuk Akar
Df Sum Sq Mean Sq F value PrF ulangan 4 2.057 0.5142 0.1791 0.94802
jenis.tanaman 3 37.851 12.6170 4.3945 0.00865 Kosentrasi.pupuk 2 3.372 1.6858 0.5872 0.56020
jenis.tanaman:Kosentrasi.pupuk 6 22.609 3.7682 1.3125 0.27179 Residuals 44 126.328 2.8711
--- Signif. codes: 0 ‘’ 0.001 ‘’ 0.01 ‘’ 0.05
‘.’ 0.1 ‘ ’ 1 Study:LSD t Test for NPA
Mean Square Error: 2.871096 jenis.tanaman, means and individual 95 CI
NPA std.err replication LCL UCL Akasia 3.916950 0.5690027 15 2.770201 5.063700
Jati 2.234203 0.4101510 15 1.407598 3.060808 Kayu putih 3.384120 0.4705700 15 2.435748 4.332491
Longkida 1.998526 0.1471422 15 1.701981 2.295072 alpha: 0.05 ; Df Error: 44
Critical Value of t: 2.015368 Least Significant Difference 1.246946
Means with the same letter are not significantly different. Groups, Treatments and means
a
Akasia 3.91695
ab Kayu putih
3.38412 bc Jati
2.234203 c Longkida
1.998526 trt means M N std.err
Akasia :1 Min. :1.999 a :1 Min. :15 Min. :0.1471
Jati :1 1st Qu.:2.175 ab :1 1st Qu.:15 1st Qu.:0.3444
Kayu putih:1 Median :2.809 bc:1 Median :15 Median :0.4404
Longkida :1 Mean :2.883 c:1 Mean :15 Mean :0.3992
3rd Qu.:3.517 3rd Qu.:15 3rd Qu.:0.4952
Max. :3.917 Max. :15 Max. :0.5690
LCI UCI Min. :1.408 Min. :2.295
1st Qu.:1.628 1st Qu.:2.869 Median :2.069 Median :3.697
Mean :2.079 Mean :3.688 3rd Qu.:2.519 3rd Qu.:4.515
Max. :2.770 Max. :5.064
65
J. Kadar Air
Two Way Analysis of Variance Data source:
Data 1 in anova all parameter.JNB Balanced Design
Dependent Variable: KA Normality Test:
Failed P
0.050
Equal Variance Test: Passed
P =
0.247
Source of Variation DF
SS MS
F P
Kosentrasi pupuk
2 130.496 65.248 1.176 0.317 jenis tanaman
3 2987.973
995.991 17.957
0.001 Kosentrasi
pu x
jenis tanaman
6 217.527 36.254 0.654 0.687 Residual 48
2662.344 55.466
Total 59 5998.341
101.667 The difference in the mean values among the different levels of Kosentrasi pupuk is not great
enough to exclude the possibility that the difference is just due to random sampling variability after allowing for the effects of differences in jenis tanaman. There is not a statistically significant
difference P = 0.317. The difference in the mean values among the different levels of jenis tanaman is greater than
would be expected by chance after allowing for effects of differences in Kosentrasi pupuk. There is a statistically significant difference P = 0.001. To isolate which groups differ from the
others use a multiple comparison procedure. The effect of different levels of Kosentrasi pupuk does not depend on what level of jenis tanaman
is present. There is not a statistically significant interaction between Kosentrasi pupuk and jenis tanaman. P = 0.687
Power of performed test with alpha = 0.0500: for Kosentrasi pupuk : 0.0737 Power of performed test with alpha = 0.0500: for jenis tanaman : 1.000
Power of performed test with alpha = 0.0500: for Kosentrasi pu x jenis tanaman : 0.0500 Least square means for Kosentrasi pupuk :
Group Mean
0.000 70.509 1.000 67.331
2.000 70.408 Std Err of LS Mean = 1.665
Least square means for jenis tanaman : Group Mean
1.000 75.192 2.000 75.283
3.000 69.235 4.000 57.954
Std Err of LS Mean = 1.923 Least square means for Kosentrasi pu x jenis tanaman :
Group Mean
0.000 x 1.000 73.474
0.000 x 2.000 76.197
0.000 x 3.000 74.622
0.000 x 4.000 57.742
1.000 x 1.000 74.507
1.000 x 2.000 73.944
1.000 x 3.000 64.846
1.000 x 4.000 56.027
2.000 x 1.000 77.593
66
2.000 x 2.000 75.708
2.000 x 3.000 68.237
2.000 x 4.000 60.092
Std Err of LS Mean = 3.331 All Pairwise Multiple Comparison Procedures Holm-Sidak method:
Overall significance level = 0.05 Comparisons for factor: jenis tanaman
Comparison
Diff of Means t
Unadjusted P Critical Level
Significant?
2.000 vs. 4.000 17.329
6.372 0.001
0.009 Yes
1.000 vs. 4.000 17.238
6.339 0.001
0.010 Yes
3.000 vs. 4.000 11.281
4.148 0.001
0.013 Yes
2.000 vs. 3.000 6.048
2.224 0.031
0.017 No
1.000 vs. 3.000 5.957
2.190 0.033
0.025 No
2.000 vs. 1.000 0.0912
0.0335 0.973
0.050 No
BAB I PENDAHULUAN
1.1 Latar Belakang
Indonesia memiliki lahan basah yang luasnya lebih dari 38 juta hektar atau 21 dari luas daratannya, dan merupakan negara dengan lahan basah terluas di
Asia. Lahan basah tersebut meliputi danau, hutan bakau, hutan rawa gambut, hutan rawa pasang surut air tawar dan lain-lainnya yang sebagian besar dapat
ditemukan di dataran rendah aluvial dan lembah-lembah sungai, muara sungai dan daerah pesisir di pulau Sumatera, Kalimantan dan Irian Jaya. Hilangnya lahan
basah akibat pengelolaan yang tidak bijaksana, menyebabkan turunnya keanekaragaman hayati secara drastis Nirarita et al. 1996.
Rawa ialah suatu bagian daratan, yang sepanjang tahun biasanya jenuh air atau tergenang air Barchia 2006. Menurut Subagyo 1997, lahan rawa adalah
lahan yang menempati posisi peralihan di antara daratan dan sistem perairan. Lahan ini sepanjang tahun atau selama waktu yang panjang dalam setahun selalu
jenuh air waterlogged atau tergenang. Selanjutnya menurut Peraturan Pemerintah No. 27 Tahun 1991 tentang rawa yang dinamakan lahan rawa adalah
genangan secara alami yang terjadi terus menerus atau musiman akibat drainase yang terhambat dan mempunyai ciri-ciri khusus baik fisik, kimiawi maupun
biologis. Genangan ini terjadi secara alamiah seperti pembentukan gambut, genesis
gambut di Indonesia dimulai dari periode holosen yang dimulai dengan terbentuknya rawa-rawa sebagai akibat dari peristiwa transgresi dan regresi karena
mencairnya es di kutub yang terjadi sekitar 4200 sampai 6800 tahun yang lalu Sabiham 1988. Pada periode pleistosen, yaitu periode sebelum holosen,
permukaan laut berada kira-kira 60 m di bawah permukaan laut sekarang. Pendapat lain mengatakan gambut ombrogen di Indonesia mulai terbentuk pada
4000 sampai 5000 tahun yang lalu. Pembentukan gambut di Indonesia terutama di Sumatra dan Kalimantan terjadi pada penghujung masa glacial dimana pencairan
es menyebabkan peningkatan muka air laut dan Sunda Shelf tergenang oleh air membentuk rawa-rawa Barchia 2006. Akan tetapi ada juga genangan yang
terbentuk akibat ulah manusia seperti permasalahan penataan lahan bekas
tambang yang tidak tepat yang mengakibatkan timbulnya genangan secara periodik Mansur 2010.
Saat ini, pada hutan rawa gambut di Indonesia ditemukan sekitar 60 jenis pohon yang mempunyai nilai ekonomis sebagai pohon penghasil kayu untuk
bahan bangunan. Jenis yang umum digunakan antara lain ramin Gonystylus bancanus, meranti Shorea sp., durian Durio carinatus, nyatoh Palaquium
sp., kempas Koompassia malaccensis, pulai Alstonia sp., terentang Campnospernum sp., bintangur Calophyllum sp. Barchia 2006.
Dalam penelitian ini jenis yang digunakan adalah longkida Nauclea orientalis, kayu putih Melaleuca leucadendron, Akasia Acacia mangium, dan
Jati Tectona grandis. Dari karekteristik tumbuhnya, longkida memiliki kemampuan menyerap air yang sangat besar, sehingga memiliki potensi untuk
dikembangkan pada lahan tergenang secara temporal, di sekitar badan sungai ataupun di kawasan rawan banjir. Kayu longkida banyak digunakan untuk bahan
konstruksi. Saat ini, longkida belum banyak ditanam, karena pemanfaatannya yang belum berkembang luas. Kayu putih selain memiliki manfaat kayu sebagai
kayu bakar, daunnya juga dapat dimanfaatkan karena mengandung minyak atsiri, melihat tempat tumbuhnya, kayu putih dapat dikembangkan pada lahan basah.
Akasia memiliki karakteristik tumbuh yang mudah, akasia dikenal dengan jenis yang dapat tumbuh pada kondisi apapun. Pada saat ini, penggunaan akasia pada
lahan basah belum banyak dilakukan. Jati digunakan sebagai kontrol pada penelitian ini, karena salah satu syarat tumbuh jati adalah pada lahan yang
memiliki drainase baik. Luasnya lahan basah di Indonesia, baik yang terjadi secara alami maupun
buatan yang sangat luas dan masih sedikitnya penelitian tentang tanaman kehutanan yang mampu beradaptasi di lahan tergenang maka perlu melakukan
penelitian dengan jenis tanaman di atas, sehingga informasi pemanfaatan lahan basah dengan jenis pohon yang adaptif semakin banyak.
