Pregled bibliografske jedinice broj: 646869
Humus composition of Chernozem, Eutric Cambisol and Luvisol in continental Croatia
Humus composition of Chernozem, Eutric Cambisol and Luvisol in continental Croatia // Book of Proceedings, Fourth International Agronomic Symposium “Agrosym 2013" / Kovačević, Dušan (ur.).
Sarajevo: Istočno Sarajevo: Poljoprivredni fakultet, 2013. str. 830-834 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 646869 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Humus composition of Chernozem, Eutric Cambisol and Luvisol in continental Croatia
Autori
Bensa, Aleksandra ; Miloš, Boško ; Sever Štrukil, Zdravka ; Krklec, Kristina
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Book of Proceedings, Fourth International Agronomic Symposium “Agrosym 2013"
/ Kovačević, Dušan - Sarajevo : Istočno Sarajevo: Poljoprivredni fakultet, 2013, 830-834
ISBN
978-99955-751-3-7
Skup
Fourth International Agronomic Symposium “Agrosym 2013"
Mjesto i datum
Sarajevo, Bosna i Hercegovina, 03.10.2013. - 06.10.2013
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
humic acid; fulvic acid; Ch/Cf; E4:E6
Sažetak
The aim of this study was to determine humus composition in the surface layer of Chernozem, Eutric Cambisol and Luvisol, major soil types used for crop production in continental Croatia. The study was conducted on 36 soil samples collected at 12 locations, of which 4 in each soil type. Humus content was determined by modified Walkey-Black method (1934) and the humus composition was analyzed by the version of Schnitzer method (1982) using a mixture of 0.1M NaOH and Na4P2O7. UV-VIS spectroscopic characterization of humic acid and fulvic acids was performed at wavelengths 465 and 665 nm. Average humus content decreased in the following order: Chernozem (2.99%) > Eutric Cambisols (2.23%) > Luvisols (1.71%). The average carbon content in humic acids decreased from 32.7% (Chernozem) to 14.72% (Luvisols), while in fulvic acids ranged from 15, 97% (Chernozem) to 24, 91% (Luvisols). The average ratio of humic acid and fulvic acids (Ch/Cf) decreased from 2.05 established in Chernozem to 0.60 in Luvisols. Structures of higher aromaticity – humic acids prevail in Chernozem and Eutric Cambisols, whereas aliphatic structures characteristic of fulvic acids are prevalent in Luvisols. The average ratio of optical densities (E4:E6) ranged from 2.4 (Chernozem) to 6.02 (Luvisols). Data obtained by the noninvasive - spectroscopic method are in agreement with data of carbon content in humic acid and fulvic acids obtained using the modified Schnitzer method.
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
178-0222882-2686 - Utjecaj poljoprivrede na onečišćenje tla i voda (Bensa, Aleksandra, MZOS ) ( CroRIS)
Ustanove:
Institut za jadranske kulture i melioraciju krša, Split,
Agronomski fakultet, Zagreb
Profili:
Aleksandra Bensa
(autor)
Boško Miloš
(autor)
Kristina Krklec
(autor)
Zdravka Sever Štrukil
(autor)