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5 th Alps-Adria Workshop, 6 th -9 th March 2006, Opatija, Croatia. Mineral fertilization and liming impact on maize and wheat yield Zdenko LONČARIĆ, Domagoj RASTIJA, Krunoslav KARALIĆ, Brigita POPOVIĆ Faculty of Africulture in Osijek, Croatia.

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Mineral fertilization and liming impact on maize and wheat yield

Zdenko LONČARIĆ, Domagoj RASTIJA, Krunoslav KARALIĆ, Brigita POPOVIĆ

Faculty of Africulture in Osijek, Croatia

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

  • The aim of paper:
  • Combined influence of liming and phosphorus mineral fertilization on:
  • soil pH reaction
  • wheat and maize yield
  • phosphorus & calcium concentrations & removal
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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Field trials at Donji Miholjac (eastern Croatia)

liming 2003 – maize 2004 – wheat 2005

Soil properties

dystric luvisol calcaric regosol

pHKCl 4.02 7.14

humus 1.66 % 1.42 %

P2O5 149 mg kg-1 139 mgkg-1

K2O 167 mg kg-1 109 mg kg-1

calcaric regosol: limey substrate excavated &

redeposited as top soil layer

back in 1986

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

P1

P1

P1

P2

P2

no

P1

P1

P2

P2

no

no

no

P2

no

P2

P2

P2

P1

P2

P1

P1

no

no

no

no

no

P1

P2

P1

P2

P2

P2

P2

P1

P1

no

P1

P1

P1

no

no

no

no

P2

Liming 2003 & Fertilization 2003 & 2004

dystric luvisol calcaric regosol

liming

no lime

Ca = 10 t ha-1 carbocalk

2Ca = 20 t ha-1 carbocalk

fertilization

no fertilizers

P1 = 150 kg P2O5 + NK

P2 = 300 kg P2O5 + NK

slide5

5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

10 t ha-1

no lime

20 t ha-1

Liming & P fertilization impact on soil pH:

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Liming & P fertilization impact on maize yield:

slide7

5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Liming & P fertilization impact on wheat yield:

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Wheat: P & Ca removal in kg ha-1

kg P ha-1

kg Ca ha-1

slide9

5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Maize: P & Ca removal in kg ha-1

kg P ha-1

kg Ca ha-1

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Conclusions

  • Increasing mineral phosphorus fertilization decreased soil pH
  • Liming increased wheat grain yield and P removal
  • Doubled P fertilization didn’t significantly influenced yield
  • Grains removed more P & less Ca than straws
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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Liming & P fertilization impacts to publish...

  • Liming:Al, Co, Mn, Ni, Pb Ca, P, B, Mo

SOIL

2. P fertilization: P, Cd

WHEAT GRAIN

  • Liming:Co, Cd, Fe, Mn, Ni B, Mo

2. P fertilization:Zn Cd

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5th Alps-Adria Workshop, 6th-9th March 2006, Opatija, Croatia

Thank you for your attention