Naslov
Nitrogen Nutrition Impact on Tuber Mineral Composition of Early Potatoes Varieties

Autori
Majić, Adrijana ; Poljak, Milan ; Sabljo, Ana ; Tabaković, Elma

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
43rd Croatian and 3rd International Symposium on Agriculture / Pospišil Milan - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2008, 184-185

ISBN
978-953-6135-68-4

Skup
43rd Croatian and 3rd International Symposium on Agriculture

Mjesto i datum
Opatija, Hrvatska, 18.02.2008. - 21.02.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nitrogen; mineral composition; early potato; tuber quality

Sažetak
Results for this paper research are collected from a trial field preformed in Jasenica in 2004 and 2005 year. The experiment was set up in randomized block design scheme in three replications. For side dressing we used three nitrogen doses (N 100, N 200 and N 300 kg N/ha) plus control plots (N 0 kg/ha). Data were being collected during two years 2004 and 2005. The objective of this research was to estimate the influence of nitrogen nutrition on mineral composition of potato tuber, priory yield and quality of tuber. In basic side dressing nitrogen, phosphorus and potassium are supplied from NPK nutrient (7-20-30) determinate from soil analysis. Additional dressing is submitted 45 days after the planting of crops from KAN (27% N) and UREA (46% N). Results of ANOVA test show that for season 2004 treatments have significant influence on percentage of nitrogen, as selection of varieties and their interaction, while in 2005 this relation hasn’ t been occurred. For 2004 it is established that percentage of potassium is influenced by different nutrition treatments and varieties while the phosphorus is influenced only by treatment. For vegetation season 2005 we didn’ t find significant influence by any of these traits. Percentage of nitrogen in potato tuber grows as we increase the nutrition treatments, thus potato yield is following the increasement proportionally. Significant correlation relationship has occurred between nitrogen and phosphorus but this wasn’ t the case with nitrogen and potassium. Also very high correlation has occurred between percentage of dry mater weight of tuber and these macronutrients for both seasons.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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