excessive soil acidity as a limiting factor in terms of land … · milan mesić, stjepan husnjak,...

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

Introduction

• The goal - to present information about

the soil acidity in the different regions of

Croatia

The processes leading to soil acidity

• Natural acidification

• Anthropogenic acidification

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

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

Acid soils in Croatia

• The total area of acid soils

• 831 704 ha,

• 32% of the agricultural land

Distribution of acid soils in

Croatian agricultural regions

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.

Distribution of acid soils in

Mountain agricultural region

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%.

Distribution of acid soils in

Adriatic agricultural region

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%.

Field work - Variable liming rate

TABLA-MOSLAVKA

Potok 12 ha, pH, P2O5, 100x100m

200 uzoraka 100 uzoraka 60 uzoraka

Postotno odstupanje: 13,2 % Postotno odstupanje: 41 %

Interpolacija pH vrijednosti tla – 4 ha, pokusno polje, Potok

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.