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Lampiran 1. Difraktogram Sinar X dari Mineral Liat Tanah Inceptisol, Vertisol,
dan Alfisol dari Jawa.
Lampiran 1. Difraktogram sinar X dari mineral liat tanah Inceptisol, Vertisol, dan Alfisol dari Jawa.
Lampiran 2. Analisis Sidik Ragam Pengaruh Varietas dan Pemberian K terhadap Serapan N, P, dan K Tanaman Jagung.
Sumber keragaman DB N P K JK KT F JK KT F JK KT F Ulangan 2 2596311 1298155 246.72** 307740 153870 744.73** 172896 86448 82.55** Perlakuan 19 169098 8899 1.69ns 4569 240 1.16ns 28401 1494 1.43ns Varietas (V) 9 42307 4700 < 1 2305 256 1.24ns 11380 1264 1.21ns Kalium (K) 1 64288 64288 12.22** 43 43 <1 7282 7282 6.95* V x K 9 62503 6944 1.32ns 2221 246 1.19ns 9739 1082 1.03ns Eror 38 199942 5261 7851 206 39792 1047 Total 59 2965352 320161 241090
Lampiran 3. Analisis Sidik Ragam Pengaruh Varietas dan Pemberian K terhadap Bobot Kering Akar dan Brangkasan Tanaman Jagung.
Sumber keragaman DB Akar Brangkasan
JK KT F JK KT F Ulangan 2 13798 6899 164.68** 9289 4644 1498.30** Perlakuan 19 972 51 1.22ns 113 6 1.93* Varietas (V) 9 635 71 1.68ns 56 6 2.00* Kalium (K) 1 36 36 <1 29 29 9.31** V x K 9 301 33 <1 29 3 1.03ns Eror 38 1592 42 118 3 Total 59 16362 9520
Lampiran 4. Analisis Sidik Ragam Pengaruh Varietas dan Pemberian K terhadap Eksudat Asam Oksalat, Sitrat, Tartarat, dan Malat dari Akar Tanaman Jagung.
Sumber
keragaman DB Asam Oksalat Citrat Tartarat Malat
JK KT F JK KT F JK KT F JK KT F fase tumbuh 2 52.02 26.00 5.3* 9.07 4.53 4.7* 5.42 2.71 4.70* 1.29 0.64 5.69* Perlakuan 9 41.93 4.66 <1 7.58 0.84 <1 8.14 0.90 1.57ns 0.91 0.10 <1 Varietas (V) 4 28.15 7.03 1.50 ns 5.52 1.38 1.27ns 5.69 1.42 2.47ns 0.69 0.17 1.52 ns Kalium (K) 1 5.80 5.80 1.23 ns 0.01 0.01 <1 0.16 0.16 <1 0.03 0.03 <1 VxK 4 7.97 1.99 <1 2.05 0.51 <1 2.29 0.57 <1 0.18 0.04 <1 Eror 18 84.61 4.70 19.57 1.08 10.38 0.57 2.05 0.11 Total 29 178.56 36.23 23.95 4.26
Lampiran 4. Analisis Sidik Ragam Pengaruh Varietas dan Pemberian K terhadap Eksudat Asam Format, Asetat, dan Total Asam Organik dari Akar Tanaman Jagung (Lanjutan).
Sumber
keragaman DB Format Asam Asetat Asam Organik
JK KT F JK KT F JK KT F Fase tumbuh 2 2.47 1.23 5.33* 0.57 0.28 8.55** 251.05 125.77 6.22** Perlakuan 9 1.80 0.20 <1 0.12 0.01 <1 175.52 19.50 <1 Varietas (V) 4 1.33 0.33 1.44ns 0.10 0.02 <1 137.63 34.40 1.70ns Kalium (K) 1 0.01 0.01 <1 0.00 0.00 <1 5.65 5.65 <1 VxK 4 0.46 0.12 <1 0.01 0.00 <1 32.23 8.06 <1 Eror 18 4.17 0.23 0.60 0.03 363.72 20.21 Total 29 8.45 1.23 790.78
Lampiran 5. Sifat-sifat Morfologi Profil Tanah-tanah di Lokasi Percobaan Laboratorium dan Rumah Kaca.
Profil : P1
Klasifikasi :
Taksonomi (USDA, 1998) : Hapludalf Tipik, halus, smektitik, isohipertermik
PPT (1983) : Mediteran Coklat Kemerahan
FAO : Luvisol
Lokasi : Jonggol, Bogor, Jabar
Tinggi tempat : 80 m
Topografi : Datar
Drainase : Sedang
Penggunaan lahan/vegetasi : Palawija
Bahan induk : Batu kapur
Horizon Kedalaman (cm) Uraian
Ap 0 - 19 Coklat gelap 7 ½ YR 4/4, lempung berliat, gumpal
bersudut halus sedang, gembur (lembab), akar halus banyak, jelas rata.
Bt 19 - 52 Coklat 7 ½ YR 5/4, liat, gumpal bersudut sedang sedang, teguh (lembab), akar halus sedikit, jelas rata.
BC 52 - 73 Coklat 7 ½ YR 5/4, coklat kelabu sangat gelap 7 ½ YR 2-3/0, dan merah 2 ½ YR 4/6, liat, gumpal bersudut halus sedang, gembur (lembab), akar halus sangat sedikit, berangsur rata.
C1 73 - 96 Kelabu pucat 7 ½ YR 6/2 dan merah 2 ½ YR 4/6, liat, masif, berangsur rata.
C2 96 - 120 Putih pucat 7 ½ YR 8/2, liat, masif, berangsur rata.
Catatan: Epipedon okrik, horizon bawah argilik, regim kelembaban udik, regim temperatur isohipertermik.
Profil : P2 Klasifikasi :
Taksonomi (USDA, 1998) : Endoaquert Kromik, sangat halus, smektitik, isohipertermik
PPT (1983) : Grumusol
FAO : Vertisol
Lokasi : Sidareja, Cilacap, Jateng
Tinggi tempat :
Topografi : Datar
Drainase : Terhambat
Penggunaan lahan/vegetasi : Campuran (kebun dan tegalan)
Bahan induk : Endapan liat berkapur
Horizon Kedalaman (cm) Uraian
Ap 0 - 16 Coklat gelap kekuningan 10 YR 4/4, liat, gumpal bersudut, sedang, lemah, lekat plastis (basah), akar halus sedang, akar sedang banyak, akar kasar sedikit, jelas rata, bidang kilir tidak jelas
Bgis 16 - 35 Coklat kekelabuan 10 YR 5/2 dan coklat gelap kekuningan 10 YR 4/4, liat berat, baji gumpal bersudut kasar lemah, lekat plastis (basah), akar halus sedang, akar sedang banyak, akar kasar banyak, berangsur rata, bidang kilir jelas
Bgis 35 - 59 Kelabu 10 YR 6/1 dan coklat gelap kekuningan 10 YR 4/4, liat berat, baji gumpal bersudut kasar lemah, lekat plastis (basah), akar halus sedang, akar sedang banyak, akar kasar banyak, berangsur rata, bidang kilir jelas
Bg 59 - 92 Kelabu olive 5 Y 5/2 dan olive 5 Y 5/4, liat, gumpal bersudut sedang lemah, lekat plastis (basah), akar halus banyak, akar sedang banyak, dan akar kasar sedikit, jelas rata, bidang kilir tidak jelas
Bgis 92 - 150 Kelabu 2 ½ Y 5/0, liat berat, baji kasar lemah, karatan coklat kekuningan 10 YR 5/6, akar halus sedikit, jelas rata, bidang kilir sangat jelas.
Profil : P3 Klasifikasi :
Taksonomi (USDA, 1998) : Endoaquert Tipik, sangat halus, smektitik, isohipertermik
PPT (1983) : Grumusol
FAO : Vertisol
Lokasi : Padas, Ngawi, Jatim
Tinggi tempat :
Topografi : Datar
Drainase : Terhambat
Penggunaan lahan/vegetasi : Tembakau
Bahan induk : Endapan liat
Horizon Kedalaman (cm) Uraian
Ap 0 - 17 Hitam 10 YR 2/1, liat, gumpal bersudut sedang lemah, gembur (lembab), lekat plastis (basah), akar halus banyak, jelas rata, bidang kilir agak jelas
Bgis 17 - 49 Kelabu sangat gelap 2 ½ Y 3/0, liat berat, baji kasar lemah, sangat teguh (lembab), lekat plastis (basah), akar halus sedikit, berangsur rata, bidang kilir jelas
Bgis 49 - 105 Kelabu gelap 2 ½ Y 4/0, liat berat, baji sangat kasar lemah, sangat teguh (lembab) lekat plastis (basah), berangsur rata, bidang kilir sangat jelas
Bg 105 - 140 Kelabu gelap 2 ½ 4/0, liat, baji kasar lemah, sangat teguh (lembab) lekat plastis (basah), jelas rata, terdapat endapan kapur berupa nodul (20%), bidang kilir jelas
Profil : P4 Klasifikasi :
Taksonomi (USDA, 1998) : Haplustalf Tipik, halus, campuran, semi aktif, isohipertermik
PPT (1983) : Mediteran
FAO : Luvisol
Lokasi : Todanan, Blora, Jateng
Tinggi tempat :
Topografi : Bergelombang
Drainase : Baik
Penggunaan lahan/vegetasi : Campuran
Bahan induk : Batu kapur
Horizon Kedalaman (cm) Uraian
Ap 0 - 12 Coklat gelap kekuningan 10 YR 3/4, lempung berliat,
gumpal bersudut halus lemah, gembur (lembab), akar halus sedang, jelas rata.
Bt1 12 - 36 Coklat gelap kekuningan 10 YR 4/6, liat, gumpal bersudut prisma sedang sedang, sangat keras (kering), akar halus, sedang, dan kasar sedikit, jelas rata.
Bt2 36 - 82 Coklat gelap kekuningan 10 YR 4/6 dan coklat kekuningan 10 YR 5/6, liat, gumpal bersudut prisma sedang sedang, sangat keras (kering), akar halus, sedang, dan kasar sedikit, berangsur rata.
BC 82 - 115 Coklat gelap kekuningan 10 YR 4/6 dan coklat kekuningan 10 YR 5/6 serta karatan coklat kuat 7 ½ YR 5/6, liat, gumpal bersudut prisma sedang sedang, sangat keras (kering), akar halus, sedang, dan kasar sedikit, jelas rata. C 115 - 150 Coklat kekuningan 10 YR 5/6 dan karatan coklat kuat 7 ½
YR 5/6, liat, sangat keras (kering), akar tidak ada, jelas rata.
Catatan: Terdapat retakan hingga kedalaman 70 cm selebar ½ - 1 cm; Terdapat pasir halus (10%) di lapisan ke-3 dan ke-4.
0 100 200 300 400 500
Jan Feb Mar Apr Mei Jun Jul Ags Sep Okt Nop Des
C ur a h huj a n ( m m ) Bogor Cilacap Ngawi Blora
Lampiran 6. Rata-rata Curah Hujan Bulanan (1971 – 2000) di Lokasi Pengambilan Contoh Tanah (Balai Penelitian Agroklimat dan Hidrologi, 2003)
Lampiran 7. Karakteristik Tanah di Jonggol, Bogor (P1), Sidareja, Cilacap (P2), Padas, Ngawi (P3), dan Todanan, Blora (P4).
pH(1:2,5) Pasir Debu Liat Liat Liat Bahan Organik HCl 25 % Olsen Bray I CH3COONH4 1 M pH 7 KCl 1 M
Horizon Kedalaman H2O KCl kasar halus C N C/N P2O5 K2O P2O5 P2O5 K Ca Mg Na Jumlah KTK KB Al H
cm ---%--- ----%---- ---mg/kg--- --- Cmol(+)/kg --- % Cmol(+)/kg) P1 (Hapludalf Tipik) Ap 0 - 19 5.47 4.01 26 32 13 30 43 1.06 0.12 9 178 30 1.33 0.65 0.11 11.97 2.22 0.16 14.47 24.97 58 5.99 0.55 Bt 19 - 52 5.52 3.89 32 26 14 38 52 0.89 0.09 10 72 30 1.35 0.33 0.07 11.53 1.44 0.08 13.12 30.03 44 14.88 0.93 BC 52 - 73 5.74 4.09 19 28 15 38 53 0.77 0.09 8 350 40 1.35 0.33 0.05 9.41 1.10 0.31 10.88 26.49 41 6.88 0.85 C1 73 - 96 5.66 3.91 43 17 11 29 40 0.33 0.04 8 163 31 1.38 0.34 0.07 15.12 1.87 0.25 17.31 28.49 61 12.32 0.82 C2 96 - 120 5.66 3.82 23 22 17 38 55 0.26 0.02 10 222 21 1.41 0.35 0.05 18.55 2.31 0.22 21.14 42.90 49 13.05 1.11 P2 (Endoaquert Kromik) Ap 0 - 16 6.36 4.72 13 32 55 1.36 0.12 11 548 134 8.87 10.04 0.28 33.21 10.36 0.42 44.27 38.03 >100 0.00 0.45 Bgis 16 - 35 6.33 4.67 5 33 62 1.06 0.09 11 381 172 6.07 5.28 0.38 32.72 10.68 0.69 44.47 47.03 95 0.00 0.40 Bgis 35 - 59 6.47 4.80 6 36 58 0.69 0.09 8 377 125 14.14 13.87 0.27 32.83 10.78 0.98 44.86 32.11 >100 0.00 0.30 Bg 59 - 92 6.46 4.98 12 53 35 0.48 0.06 8 365 130 16.28 31.48 0.26 33.42 10.67 1.85 46.20 36.69 >100 0.00 0.25 Bgis 92 -150 6.67 5.58 5 40 55 0.42 0.05 9 560 146 28.69 15.08 0.32 38.30 13.63 2.38 54.64 39.17 >100 0.00 0.23 P3 (Endoaquert Tipik) Ap 0 - 17 5.56 3.88 9 35 56 1.00 0.11 10 222 41 13.90 34.41 0.12 42.97 9.06 0.03 52.18 56.97 92 5.57 0.82 Bgis 17 - 49 6.06 4.48 6 22 72 0.74 0.09 8 57 26 7.61 4.06 0.09 53.72 10.85 0.08 64.74 43.92 >100 0.00 0.50 Bgis 49 - 105 6.56 5.09 4 12 84 0.66 0.06 11 21 32 1.42 1.74 0.08 65.03 1.56 1.20 67.87 59.20 >100 0.00 0.42 Bg 105 - 140 7.90 6.69 4 15 81 0.27 0.03 8 37 41 4.18 1.36 0.07 82.15 8.67 0.80 91.68 45.23 >100 0.00 0.30 P4 (Haplustalf Tipik) Ap 0 - 12 7.01 6.24 48 27 13 11 25 1.31 0.10 13 148 187 6.39 5.01 0.35 13.01 0.95 0.38 14.69 13.98 >100 0.00 0.19 Bt1 12 - 36 7.09 5.89 59 8 16 18 33 0.80 0.07 12 114 70 1.28 2.19 0.11 11.03 0.62 0.14 11.90 10.13 >100 0.00 0.17 Bt2 36 - 82 6.99 5.60 45 26 14 15 29 0.51 0.04 11 64 65 1.27 0.31 0.09 8.47 0.37 0.09 9.02 6.97 >100 0.00 0.15 BC 82 - 115 6.97 5.54 39 29 15 18 32 0.39 0.04 9 68 60 1.91 0.31 0.11 8.09 0.58 0.08 8.86 6.04 >100 0.00 0.12 C 115 - 150 7.07 5.80 36 29 17 18 35 0.31 0.04 8 49 74 1.27 0.31 0.13 9.02 0.75 0.11 10.02 8.52 >100 0.00 0.31
Lampiran 8. Analisis Sidik Ragam Pengaruh Asam Oksalat, Na+, NH4+, dan Fe3+ terhadap Bentuk-bentuk K Tanah Alfisol.
Sumber Keragaman DB
K-larut K-dd K-tdd
JK KT F JK KT F JK KT F
Ulangan 1 69 69 1.79 ns 1752 1752 26.41** 5428 5428 49.14** Perlakuan 24 13380 557 14.36 ** 3783 157 2.38* 24114 1004 9.09** Asam Oksalat (AO) 4 62 15 <1 1328 332 5.00** 1766 441 4.00* Kation (M) 4 13115 3278 84.45** 1419 354 5.35** 20997 5249 47.51**
AO x M 16 202 12 <1 1036 64 <1 1351 48 <1
Error 24 931 38 1592 66 2651 110
Lampiran 9. Analisis Sidik Ragam Pengaruh Asam Oksalat, Na+, NH4+, dan Fe3+ terhadap Bentuk-bentuk K Tanah Vertisol.
Sumber Keragaman DB
K-larut K-dd K-tdd
JK KT F JK KT F JK KT F
Ulangan 1 1331 1331 11.20** 14112 14112 105.12** 37373 37373 128.92** Perlakuan 24 90269 3761 31.63** 4807 200 1.49** 110045 4585 15.82** Asam Oksalat (AO) 4 946 236 1.99ns 1331 332 2.48ns 2099 524 1.81ns Kation (M) 4 87477 21869 183.92** 2533 633 4.72** 105161 26290 90.69**
AO x M 16 1845 115 <1 942 58 <1 2784 174 <1
Error 24 2853 118 3222 134 6957 289
Lampiran 10. Analisis Sidik Ragam Pengaruh Asam Oksalat, Na+, NH4+, dan Fe3+ terhadap Serapan N, P, dan K Tanaman Jagung di Tanah Alfisol.
Sumber keragaman DB N P K JK KT F JK KT F JK KT F Fase tumbuh 2 19.11 9.56 23.94** 0.17 0.08 11.60** 3.85 1.92 19.47** Perlakuan 19 42.24 2.22 5.57** 0.46 0.02 3.35** 6.12 0.32 3.26**
Asam oksalat (AO) 4 2.34 0.58 1.46ns 0.19 0.47 6.43** 3.76 0.94 9.50**
Kation (M) 3 36.25 12.08 30.27** 0.23 0.08 10.60** 1.04 0.34 3.51*
AO x M 12 3.65 0.3 <1 0.04 0.01 <1 1.32 0.12 1.11ns
Eror 38 15.17 0.39 0.28 0 3.76 0.09
Total 59 76.52 0.91 13.72
Lampiran 11. Analisis Sidik Ragam Pengaruh Asam Oksalat, Na+, NH4+, dan Fe3+ terhadap Serapan N, P, dan K Tanaman Jagung di Tanah Vertisol.
Sumber Keragaman DB N P K JK KT F JK KT F JK KT F Fase tumbuh 2 6.6 3.3 29.70** 1.94 0.97 533.26** 0.09 0.05 <1 Perlakuan 19 10.48 0.55 4.96** 0.11 0.01 3.32** 26.4 1.39 5.55**
Asam oksalat (AO) 4 2.68 0.67 6.02** 0.05 0.01 6.60** 1.12 0.28 1.12ns
Kation (M) 3 0.39 0.13 1.18ns 0.02 0.01 2.91* 22.21 7.40 29.59**
AO x M 12 7.41 0.62 5.56** 0.05 0.00 2.32* 3.08 0.26 1.03ns
Eror 38 4.22 0.11 0.07 0.00 9.51 0.25
Lampiran 12. Analisis Sidik Ragam Pengaruh Asam Oksalat, Na+, NH4+, dan Fe3+ terhadap Brangkasan Kering Tanaman Jagung di Tanah Alfisol.
Sumber keragaman DB Hapludalf Tipik Haplustalf Vertik
JK KT F JK KT F
fase tumbuh 2 0.69 0.35 5.48** 0.15 0.07 <1 Perlakuan 19 12.10 0.68 10.84** 73.23 3.85 22.21** Asam oksalat (AO) 4 0.74 0.18 2.93* 0.04 0.01 <1 Kation (M) 3 11.19 3.73 59.15** 71.76 23.92 137.86** AO x M 12 1.06 0.08 1.41ns 1.42 0.12 <
Eror 38 2.39 0.06 6.59 0.17
Total 59 16.08 79.96
Lampiran 13. Analisis Sidik Ragam Pengaruh Asam Oksalat, Na+, NH4+, dan Fe3+ terhadap Brangkasan Kering Tanaman Jagung di Tanah Vertisol.
Sumber keragaman DB Endoaquert Kromik Endoaquert Tipik
JK KT F JK KT F
Fase tumbuh 2 0.82 0.41 1.20ns 0.46 0.23 1.43ns Perlakuan 19 163.97 8.63 25.30** 58.93 3.10 19.23** Asam oksalat (AO) 4 1.88 0.47 1.37ns 1.99 0.49 3.09* Kation (M) 3 157.64 52.55 154.04** 54.51 18.17 112.64 AO x M 12 4.45 0.37 1.09ns 2.41 0.20 1.25ns
Eror 38 12.96 0.34 6.13 0.16
