Naslov
Trace element concentrations in the grain of wheat cultivars as affected by nitrogen fertilization

Autori
Svečnjak, Zlatko ; Jenel, Marina ; Bujan, Marija ; Vitali Čepo, Dubravka ; Vedrina Dragojević, Irena

Izvornik
Agricultural and food science (1459-6067) 22 (2013), 4; 445-451

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
1000-grain weight; grain N; growing season; winter wheat; yield

Sažetak
Three winter wheat cultivars were grown under low- N and high-N fertilization rates over two growing seasons. In spite of smaller 1000-grain weight, the high-N fertilization produced higher grain yields as well as grain N and trace element concentrations in both growing seasons. Trace element increments with high-N rate averaged 14.0% for Fe, 9.2% for Zn, 19.7% for Mn, 13.2% for Cu, 15.1% for Ni, and 23.0% for Cd. Only Na concentration was unaffected by N fertilization, whereas Pb and Cr were below detection limits. Absolutely small, but significant differences existed among tested cultivars for all trace elements and these cultivar effects were uniform on both N fertilization rates. However, cultivars differed in their rankings for trace element concentrations across two growing seasons and these specific responses appeared to be closely related to grain N.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Prehrambena tehnologija

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