Aplikasi dolomit, bahan organik dan pupuk NPK pada tanah dicemari Pb: keterkaitan antara sifat kimia tanah dan ketersediaan Pb dengan bobot kering tomat (Lycopersicon esculentun M.)
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01%
APLIKASI DOLOMIT, BAHAN ORGANIK DAN PUPUK NPK
PADA TANAH DICEMARI Pb: KETERKAITAN ANTARA
SIFAT KIMIA TANAH DAN KETERSEDLAAN Pb DENGAN
BOBOT KERING TOMAT (Lycopersiconesculentum M.)
Oleh
AHMAD ISMAIL
A24101100
PROGRAM STUD1 ILMU TANAH
FAKULTAS PERTANIAN
INSTITUT P E R T A N W BOGOR
2006
Puji syukur kepada Allah Sang Pencipta
yang telah rnernberikan segalanya
SUMMARY
Ahmad Ismail. Application of Dolomite, Organic Matter, and NPK Fertilizers on
Pb-Polluted Soil: Relationships between Soil Chemical Properties and
Bioavailable-Pb with Dry Matter Yield of Tomato (Lycopersicon esculenfum M.)
(under supervision of Lilik Tri Indriyati and Untung Sudadi)
Urban arable land located near industrial area are vulnerable to heavy
metal pollution. One of these heavy metals of concerned is plumbum (Pb). In
situ inactivation is a prospective remediation methods to be applied on heavy
metal polluted-soil of arable land. This technique refers to the use of ameliorants
and fertilizers to alter the chemical forms of heavy metal pollutants in the
environment, thereby decreasing their chemical and biological ability to cause
harm.
This research was aimed at to evaluate: (1) the effects of amelioration and
fertilization at 4 (four) soil Pb-enrichment series on soil chemical properties, the
concentration of Pb-bioavailable fraction and dry matter yield of the test plant,
and (2) the relationships between soil chemical properties, concentration of soil
Pb-bioavailable fraction and dry matter yield of the test plant. The test plant used
in this research was low altitude-dryland tomato. The concentration of soil Pbbioavailable fraction was extracted with NKOAc-EDTA pH 4.65.
A greenhouse experiment using bulk soil samples of the upper 0-20 cm
layer taken from productive arable land in Cileungsi industrial area was conducted
in a completely randomized design with 3 (three) rates of amelioration and
fertilization treatment (0, 50 and 100 % of the recommended dosage for low
altitude-dryland tomato) at 4 (four) series of soil Pb-enrichment (0,187.5, 375 and
750 mg Pbkg dry matter soil using Pb(CH3C00)2.3H20 with 3 (three)
replications. The recommended dosage for commercial tomato cultivation in low
altitude dryland are: 4 tonha Dolomite, 30 tonha cow dung, 150 kgha N (% Urea
+ % ZA), 150 kgha P2O5 (SP-36) and 100 kgha K20 (KCI).
The results of this research showed that the increasing rates of the
amelioration and fertilization treatment from 0 to 100 % of the recommended
dosage increased significantly and linearly soil pH-H20, organic-C, total-N, and
exchangeable-Mg, -K, and -Na at all series of soil Pb-enrichment, and P-Bray#l,
exchangeable-Ca, and cation exchange capacity at 750 mg Pbkg series;
significantly affected soil NKOAc-EDTA-Pb at 187.5 and 375 mg Pblkg series
with quadratic responses; significantly affected roots dry matter yield with
quadratic responses at 0 and 187.5 mg Pbkg series and with linear response at
375 and 750 mg Pbkg series; affected significantly and linearly shoots dry matter
yield at 0, 187.5, and 750 mg Pbkg series but with quadratic response at 375 mg
Pbkg series. The changes in soil NbOAc-EDTA-Pb concentration and other soil
chemical properties except organic-C, exchangeable-Mg, and pH-H20 were not
the main factors affecting plant dry matter yield. Soil Pb-enrichment until 750 mg
Pbkg only decreased tomato's roots and shoots dry matter yields by 7 and 2 %,
respectively, as compared to those of the un-enriched ones. Amelioration and
fertilization treatment as the implementation of the in situ inactivation technique
studied in this research affected not consistently the concentration of the soil Pbbioavailable fraction, but improved other soil chemical properties, thereby
increased dry matter yield of the test plant.
01%
APLIKASI DOLOMIT, BAHAN ORGANIK DAN PUPUK NPK
PADA TANAH DICEMARI Pb: KETERKAITAN ANTARA
SIFAT KIMIA TANAH DAN KETERSEDLAAN Pb DENGAN
BOBOT KERING TOMAT (Lycopersiconesculentum M.)
Oleh
AHMAD ISMAIL
A24101100
PROGRAM STUD1 ILMU TANAH
FAKULTAS PERTANIAN
INSTITUT P E R T A N W BOGOR
2006
Puji syukur kepada Allah Sang Pencipta
yang telah rnernberikan segalanya
SUMMARY
Ahmad Ismail. Application of Dolomite, Organic Matter, and NPK Fertilizers on
Pb-Polluted Soil: Relationships between Soil Chemical Properties and
Bioavailable-Pb with Dry Matter Yield of Tomato (Lycopersicon esculenfum M.)
(under supervision of Lilik Tri Indriyati and Untung Sudadi)
Urban arable land located near industrial area are vulnerable to heavy
metal pollution. One of these heavy metals of concerned is plumbum (Pb). In
situ inactivation is a prospective remediation methods to be applied on heavy
metal polluted-soil of arable land. This technique refers to the use of ameliorants
and fertilizers to alter the chemical forms of heavy metal pollutants in the
environment, thereby decreasing their chemical and biological ability to cause
harm.
This research was aimed at to evaluate: (1) the effects of amelioration and
fertilization at 4 (four) soil Pb-enrichment series on soil chemical properties, the
concentration of Pb-bioavailable fraction and dry matter yield of the test plant,
and (2) the relationships between soil chemical properties, concentration of soil
Pb-bioavailable fraction and dry matter yield of the test plant. The test plant used
in this research was low altitude-dryland tomato. The concentration of soil Pbbioavailable fraction was extracted with NKOAc-EDTA pH 4.65.
A greenhouse experiment using bulk soil samples of the upper 0-20 cm
layer taken from productive arable land in Cileungsi industrial area was conducted
in a completely randomized design with 3 (three) rates of amelioration and
fertilization treatment (0, 50 and 100 % of the recommended dosage for low
altitude-dryland tomato) at 4 (four) series of soil Pb-enrichment (0,187.5, 375 and
750 mg Pbkg dry matter soil using Pb(CH3C00)2.3H20 with 3 (three)
replications. The recommended dosage for commercial tomato cultivation in low
altitude dryland are: 4 tonha Dolomite, 30 tonha cow dung, 150 kgha N (% Urea
+ % ZA), 150 kgha P2O5 (SP-36) and 100 kgha K20 (KCI).
The results of this research showed that the increasing rates of the
amelioration and fertilization treatment from 0 to 100 % of the recommended
dosage increased significantly and linearly soil pH-H20, organic-C, total-N, and
exchangeable-Mg, -K, and -Na at all series of soil Pb-enrichment, and P-Bray#l,
exchangeable-Ca, and cation exchange capacity at 750 mg Pbkg series;
significantly affected soil NKOAc-EDTA-Pb at 187.5 and 375 mg Pblkg series
with quadratic responses; significantly affected roots dry matter yield with
quadratic responses at 0 and 187.5 mg Pbkg series and with linear response at
375 and 750 mg Pbkg series; affected significantly and linearly shoots dry matter
yield at 0, 187.5, and 750 mg Pbkg series but with quadratic response at 375 mg
Pbkg series. The changes in soil NbOAc-EDTA-Pb concentration and other soil
chemical properties except organic-C, exchangeable-Mg, and pH-H20 were not
the main factors affecting plant dry matter yield. Soil Pb-enrichment until 750 mg
Pbkg only decreased tomato's roots and shoots dry matter yields by 7 and 2 %,
respectively, as compared to those of the un-enriched ones. Amelioration and
fertilization treatment as the implementation of the in situ inactivation technique
studied in this research affected not consistently the concentration of the soil Pbbioavailable fraction, but improved other soil chemical properties, thereby
increased dry matter yield of the test plant.