Excessive Soil Acidity as a Limiting Factor in Terms of Land … · Milan Mesić, Stjepan Husnjak,...
Transcript of Excessive Soil Acidity as a Limiting Factor in Terms of Land … · Milan Mesić, Stjepan Husnjak,...
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Land Quality and Land use Information in
the EU, Keszthely, Hungary
26.05.2011.
Excessive Soil Acidity as a Limiting Factor in Terms of Land Quality in Croatia
Milan Mesić, Stjepan Husnjak,
Ferdo Bašić, Ivica Kisić
University of Zagreb Faculty of
Agriculture
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Introduction
• The goal - to present information about
the soil acidity in the different regions of
Croatia
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The processes leading to soil acidity
• Natural acidification
• Anthropogenic acidification
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Avarage annual losses of Ca (8 years)
with drainpipe water, 1997 – 2004.
0
20
40
60
80
100
120
140
160
180
1. Check 2. N0 PK 3. N100
PK
4. N150
PK
5. N200
PK
6. N250
PK
'7. N250
PK+PG
'8. N250
PK+ZT
9. N300
PK
10.
Black
fallow
kg Ca ha-1
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Avarage annual losses of Mg (8 years)
with drainpipe water, 1997 – 2004.
0
10
20
30
40
50
60
70
80
90
100
1. Check 2. N0 PK 3. N100
PK
4. N150
PK
5. N200
PK
6. N250
PK
'7. N250
PK+PG
'8. N250
PK+ZT
9. N300
PK
10.
Black
fallow
kg Mg ha-1
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Acid soils in Croatia
• The total area of acid soils
• 831 704 ha,
• 32% of the agricultural land
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Distribution of acid soils in
Croatian agricultural regions
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Pannonian region
• Acid soils in Pannonian agricultural
region 660 617 ha,
• represents 79.5% of the total area of
acid soils in Croatia.
• Pseudogley 42%, Luvisol 40% - of the
total 660 617 ha of acid soils in the
Pannonian region.
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Distribution of acid soils in
Mountain agricultural region
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Mountain region
• Area of acid soils occupy 129 487 ha,
• 15.5% of the total area of acid soils in
Croatia
• Luvisol 37%, Distric brown soil 31%
and Pseudogley 22%.
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Distribution of acid soils in
Adriatic agricultural region
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Adriatic region
• Area of acid soils occupy 41 600 ha,
which represents 5% of the total area
of acid soils in Croatia.
• In relation to the total area of this
region, the Luvisol occupies 83%.
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Field work - Variable liming rate
TABLA-MOSLAVKA
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Potok 12 ha, pH, P2O5, 100x100m
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200 uzoraka 100 uzoraka 60 uzoraka
Postotno odstupanje: 13,2 % Postotno odstupanje: 41 %
Interpolacija pH vrijednosti tla – 4 ha, pokusno polje, Potok
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Conclusions
• Every farmer should know the parameters
of acidity, and accordingly take cultivation
measures; and if it is necessary, to apply
lime in order to preserve land quality.
• According to the presented results, the
greatest need for the application of lime
materials is in the Pannonian agricultural
region.
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