Pregled bibliografske jedinice broj: 4484
Effect of build-up K fertilization on two soil types of the Pannonian valley
Effect of build-up K fertilization on two soil types of the Pannonian valley // Fertilization for Sustainable Plant Production and Soil Fertility : Proceedings of the World Fertilizer Congress of CIEC, Vol. I / Cleemput Van, O. ; Haneklaus, S. ; Hofman, G. ; Schnug, E. ; Vermoese (ur.).
Braunschweig : Budimpešta : Beč: University Gent, 1998. str. 282-288 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Effect of build-up K fertilization on two soil types of the Pannonian valley
(Effect of build-up K fertilization om two soil types of the Pannonian valley)
Autori
Kadar, Imre ; Koncz, Joseph ; Kovačević, Vlado ; Marketić, Mirta
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Fertilization for Sustainable Plant Production and Soil Fertility : Proceedings of the World Fertilizer Congress of CIEC, Vol. I
/ Cleemput Van, O. ; Haneklaus, S. ; Hofman, G. ; Schnug, E. ; Vermoese - Braunschweig : Budimpešta : Beč : University Gent, 1998, 282-288
Skup
11th World Fertilizer Congress "Fertilization for sustainable plant production and soil fertility"
Mjesto i datum
Gent, Belgija, 07.09.1997. - 13.09.1997
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
potassium; fertilization; soil type
Sažetak
The Pannonian valley is important agricultural region of the central Europe. Its arable lands are more or less favorable for plant growing. Maize and wheat are main crops. Potassium deficiency was found on some soils of Hungary and Croatia. In our study, response of corn (Zea mays L.) to increased K fertilization (KCl form) was shown. The experimental field Nagyhorcsok (Fejer county, Hungary) was conducted 1973 on loamy chernozem by application of K levels until 1500 kg K2O/ha. The experimental field Stari Mikanovci (Vukovarsko-Srijemska county, Croatia) was conducted 1990 on drained and strong K-fixing gleysol by application of K levels until 3250 kg K2O/ha. These two fields are mutually distanced about 185 km (air-distance of SN direction). K build-up fertilization was especially effective on gleysol where clay is dominant grain-size fraction (36% in comparison with 20% in chernozem) with strong K-fixing minerals smectite+vermiculite (60% in comparison with 35% in chernozem). Also, the exchangeable Ca and Mg concentrations in the gleysol extremely overweight potassium: (Ca+Mg) / K = 416 and 81, for gleysol and chernozem, respectively). These properties correspondingly affected this relations in maize leaves: 6.5 and 1.5, respectively. Under these soil stress conditions, increased K fertilization is able to correct the cation concentrations and ratios both in soil and plant moving these to near optima values.
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
