Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Gießen [i.e.] Niederkleen
Wiss. Fachverl.
1997
|
| Schriftenreihe: | Biologie
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Gießen, Univ., Diss., 1997 |
| Beschreibung: | 117, [26] S. graph. Darst. : 21 cm |
| ISBN: | 3930600900 |
Internformat
MARC
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| 003 | DE-604 | ||
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| 100 | 1 | |a Witt, Christian |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices |c Christian Witt |
| 264 | 1 | |a Gießen [i.e.] Niederkleen |b Wiss. Fachverl. |c 1997 | |
| 300 | |a 117, [26] S. |b graph. Darst. : 21 cm | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 0 | |a Biologie | |
| 500 | |a Zugl.: Gießen, Univ., Diss., 1997 | ||
| 650 | 0 | 7 | |a Stickstoffversorgung |0 (DE-588)4183289-9 |2 gnd |9 rswk-swf |
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| 943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-009571866 | |
Datensatz im Suchindex
| _version_ | 1816444525024903168 |
|---|---|
| adam_text |
CONTENTS
PAGE
1
INTRODUCTION
.
1
2
LITERATURE
REVIEW
.
3
2.1
INTENSIFICATION
OF
RICE
CROPPING
SYSTEMS
AND
THE
YIELD
DECLINE
PHENOMENON
.
3
2.2
SOIL
INDIGENOUS
N
SUPPLY
IN
IRRIGATED
RICE SYSTEMS
.
4
2.3
SOIL
MICROBIAL
BIOMASS
AS
A
NUTRIENT
POOL
.
6
2.4
SOIL
MICROBIAL
BIOMASS
MEDIATING
SOIL
C
AND
N
TRANSFORMATIONS
.
8
2.5
EFFECTS
OF
SOIL
AERATION
ON
THE
SOIL
N
SUPPLY
.
10
2.6
CROP
RESIDUE
MANAGEMENT
AFFECTING
SOIL
N
SUPPLY
AND
PLANT
N
UPTAKE
.
11
2.7
SOIL
N
SUPPLY
FROM
GREEN
MANURE
.
14
2.8
QUANTIFICATION
OF
SOIL
MICROBIAL
BIOMASS
(SMB)
.
15
2.8.1
ADVANTAGES
AND
LIMITATIONS
OF
CHLOROFORM-FUMIGATION
TECHNIQUES
.
15
2.8.2
APPLICABILITY
OF
CHLOROFORM-FUMIGATION
METHODS
IN
WETLAND
RICE
SOILS
.
17
3
MATERIALS
AND
METHODS
.
20
3.1
FIELD
AND
GREENHOUSE
EXPERIMENTS
.
20
3.1.1
GREENHOUSE
EXPERIMENT
.
20
3.1.2
GEOGRAPHIC
AND
CLIMATIC
CHARACTERIZATION
OF
EXPERIMENTAL
SITES
.
21
3.1.3
RICE
UPLAND
CROP
ROTATION
EXPERIMENT
(RUCRE)
.
21
3.1.4
LONG-TERM
CONTINUOUS
CROPPING
EXPERIMENT
(LTCCE)
.
26
3.1.5
LONG-TERM
N
SOURCE
EXPERIMENT
(LTNSE)
.
27
3.2
SOIL
SAMPLING
AND
SOIL
PROCESSING
.
28
3.3
ANALYSIS
OF
SOIL
AND
PLANT
MATERIALS
.
28
3.4
ANALYSIS
OF
SOIL
EXTRACTS
.
29
3.4.1
CARBON
(C
E
)
IN
K2SO4
ETRACTS
.
29
3.4.2
NITROGEN
(N
E
)
IN
K
2
SO
4
EXTRACTS
.
30
3.4.3
NINHYDRIN
REACTIVE
NITROGEN
(NRN)
IN
K2SO4
EXTRACTS
.
30
3.4.4
AMMONIUM
IN
K
2
SO
4
EXTRACTS
.
31
3.4.5
NITRATE
IN
K2SO4
EXTRACTS
.
31
3.4.6
FE
(II)
AND
FE
(III)
IN
K2SO4
EXTRACTS
.
31
3.5
QUANTIFICATION
OF
SOIL
MICROBIAL
BIOMASS
C
AND
N
.
32
3.5.1
CHLOROFORM-FUMIGATION
EXTRACTION
AT
ATMOSPHERIC
PRESSURE
(CFAP)
.
32
3.5.2
CHLOROFORM-FUMIGATION
EXTRACTION
(CFE)
.
33
3.5.3
EVALUATION
OF
CHLOROFORM-FIIMIGATION
AT
ATMOSPHERIC
PRESSURE
(CFAP)
.
33
3.5.3.1
EFFECTIVENESS
OF
CHLOROFORM-FUMIGATION
.
33
3.5.3.2
EFFECT
OF
FUMIGATION
TIME
ON
THE
RELEASE
OF
MICROBIAL
C
AND
N
.
34
3.5.3.3
INFLUENCE
OF
RICE
ROOTS
ON
THE
CFAP
ASSAY
.
35
3.5.3.4
COMPARISON
OF
THE
CFAP
ASSAY
WITH
THE
CFE
TECHNIQUE
.
35
3.6
STATISTICAL
ANALYSIS
.
36
4
RESULTS
.
37
4.1
EVALUATION
OF
CHLOROFORM-FUMIGATION
AT
ATMOSPHERIC
PRESSURE
(CFAP)
FOR
QUANTIFICATION
OF
SOIL
MICROBIAL
BIOMASS
.
37
4.1.1
EFFECT
OF
CHLOROFORM
QUANTITY
ON
THE
RELEASE
OF
MICROBIAL
C
AND
N
.
37
4.1.2
EFFECT
OF
SOIL
WATER
CONTENT
ON
THE
RELEASE
OF
MICROBIAL
C
AND
N
.
38
4.1.3
EFFECT
OF
FUMIGATION
TIME
ON
THE
RELEASE
OF
MICROBIAL
C
AND
N
.
39
4.1.4
INFLUENCE
OF
RICE
ROOTS
ON
THE
CFAP
ASSAY
FOR
WATERLOGGED
SOIL
.
42
4.1.5
COMPARISON
OF
THE
CFAP
ASSAY
WITH
THE
CFE
TECHNIQUE
.
44
4.2
GREENHOUSE
EXPERIMENT
.
48
4.3
RICE
UPLAND
CROP
ROTATION
EXPERIMENT
(RUCRE)
.
51
4.3.1
AIR
AND
SOIL
TEMPERATURES
.
51
4.3.2
SOIL
MICROBIAL
BIOMASS
(SMB)
.
52
4.3.3
SOIL
EXTRACTABLE
NITROGEN
POOLS
.
57
4.3.4
PLANT
N
ACCUMULATION,
DRY
MATTER
AND
YIELD
.
62
4.3.5
SOIL
ORGANIC
C
AND
TOTAL
SOIL
N
.
65
4.4
LONG-TERM
CONTINUOUS
CROPPING
EXPERIMENT
(LTCCE)
.
68
4.5
LONG-TERM
N
SOURCE
EXPERIMENT
(LTNSE)
.
70
5
DISCUSSION
.
73
5.1
SUITABILITY
OF
CHLOROFORM-FUMIGATION
EXTRACTION
ASSAYS
IN
RICE
SOILS
.
73
5.2
SOIL
MICROBIAL
BIOMASS
AND
SOIL
N
SUPPLY
IN
IRRIGATED
LOWLAND
RICE
SOILS
.
79
5.2.1
EFFECTS
OF
CROP
RESIDUE
MANAGEMENT
AND
FERTILIZER
APPLICATION
.
79
5.2.2
EFFECTS
OF
AN
INTEGRATED
MAIZE
CROPPING
CYCLE
.
.84
5.2.3
LONG-TERM
EFFECTS
OF
MANAGEMENT
PRACTICES
.
87
6
SUMMARY
.
91
7
ZUSAMMENFASSUNG
.
96
REFERENCES
.
104
APPENDIX |
| any_adam_object | 1 |
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| author_facet | Witt, Christian |
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| discipline | Geographie |
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| illustrated | Illustrated |
| indexdate | 2024-11-22T17:28:09Z |
| institution | BVB |
| isbn | 3930600900 |
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| series2 | Biologie |
| spelling | Witt, Christian Verfasser aut Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices Christian Witt Gießen [i.e.] Niederkleen Wiss. Fachverl. 1997 117, [26] S. graph. Darst. : 21 cm txt rdacontent n rdamedia nc rdacarrier Biologie Zugl.: Gießen, Univ., Diss., 1997 Stickstoffversorgung (DE-588)4183289-9 gnd rswk-swf Bodenmikroorganismus (DE-588)4448560-8 gnd rswk-swf Wasserreis (DE-588)4126929-9 gnd rswk-swf Biomasse (DE-588)4006877-8 gnd rswk-swf Reisanbau (DE-588)4129532-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Wasserreis (DE-588)4126929-9 s Reisanbau (DE-588)4129532-8 s Biomasse (DE-588)4006877-8 s Bodenmikroorganismus (DE-588)4448560-8 s Stickstoffversorgung (DE-588)4183289-9 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009571866&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Witt, Christian Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices Stickstoffversorgung (DE-588)4183289-9 gnd Bodenmikroorganismus (DE-588)4448560-8 gnd Wasserreis (DE-588)4126929-9 gnd Biomasse (DE-588)4006877-8 gnd Reisanbau (DE-588)4129532-8 gnd |
| subject_GND | (DE-588)4183289-9 (DE-588)4448560-8 (DE-588)4126929-9 (DE-588)4006877-8 (DE-588)4129532-8 (DE-588)4113937-9 |
| title | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices |
| title_auth | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices |
| title_exact_search | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices |
| title_full | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices Christian Witt |
| title_fullStr | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices Christian Witt |
| title_full_unstemmed | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices Christian Witt |
| title_short | Soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices |
| title_sort | soil microbial biomass and nitrogen supply in irrigated lowland rice soils as affected by management practices |
| topic | Stickstoffversorgung (DE-588)4183289-9 gnd Bodenmikroorganismus (DE-588)4448560-8 gnd Wasserreis (DE-588)4126929-9 gnd Biomasse (DE-588)4006877-8 gnd Reisanbau (DE-588)4129532-8 gnd |
| topic_facet | Stickstoffversorgung Bodenmikroorganismus Wasserreis Biomasse Reisanbau Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009571866&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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