Naslov
Effects of nitrogen nutrition on potato tuber composition and yield

Autori
Poljak, Milan ; Herak Ćustić, Mirjana ; Horvat, Tea ; Čoga, Lepomir ; Majić, Adrijana

Izvornik
Cereal Research Communications (0133-3720) 35 (2007), 2 Part 2; 937-940

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

Ključne riječi
potato; nitrogen; tuber mineral composition; sustainability

Sažetak
Field fertilization trials were set up at private farm in Slovinska Kovačica, one of major region for processing potato production in Croatia. The effect of five nitrogen rates (0, 100, 150, 200, 250 kg ha-1) and three potato cultivars (Solanum tuberosum L.) during three growing seasons on tuber mineral composition, dry matter content and total tuber yield were studied. Tuber nitrogen concentrations differed significantly and great impact of growth condition and cultivar on tuber mineral composition was shown. Total tuber yield increased significantly with increasing N rate, but there was no significant difference between 100 and 250 kg ha-1 N rates. Increasing N rates have no significant effect on dry matter content or mineral composition of tuber but significant positive correlation (r=0.34*) between tuber N vs. Ca concentration was determined.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA