Pregled bibliografske jedinice broj: 503057
Phosphorus fertilization impacts on maize yield and nutritional status with emphasis on P and Zn in leaves and grain
Phosphorus fertilization impacts on maize yield and nutritional status with emphasis on P and Zn in leaves and grain // Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World / Gilkes, Robert J. ; Prakongkep, Nattaporn (ur.).
Brisbane: IUSS (International Union of Soil Science), 2010. str. 178-181 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Phosphorus fertilization impacts on maize yield
and nutritional status with emphasis on P and
Zn in leaves and grain
Autori
Kovačević, Vlado ; Lončarić, Zdenko ; Kadar, Imre ; Petošić, Dragutin ; Andrić, Luka
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World
/ Gilkes, Robert J. ; Prakongkep, Nattaporn - Brisbane : IUSS (International Union of Soil Science), 2010, 178-181
ISBN
978-0-646-53783-2
Skup
19th World Congress of Soil Science: Soil Solutions for a Changing World
Mjesto i datum
Brisbane, Australija, 01.08.2010. - 06.08.2010
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
maize ; phosphorus fertilization ; yield ; leaf and grain P and Zn status
Sažetak
Four field experiments with increasing rates of P fertilization (kg P2O5/ha: up to 2000, 1000, 1500, and 1500, for the exp. A, B, C and D, respectively) were started between spring of 2002 and 2004. The experiments were performed in four replicates (basic plot, depending on the trial, from 32 to 92 m2). Monoammonium phoshate (MAP: 12% N + 52% P2O5 ) in experiments A-C and triplephoshate enriched with sulphur and zinc (45% P2O5 + 1, 2% S + 0, 06% Zn) in experiment D were used as P fertilizers. In general, P fertilization (the exp. A) had moderate yield effects probably due to acid soil reaction. Only application of the highest P rate had residual influences on maize yields for the 2003 growing season (7.74 and 8.38 t/ha, for the control and the highest rate of P, respectively). In the experiment B, fertilization resulted in significant yield increases up to 16%. In the exp. C maize yields were similar for applied P treatments. However, maize responded drastically to P fertilizations by yield increasing up to 32%, 17%, and 40%, for 2004, 2005, and 2006, respectively (the exp. D). An acceptable range of P:Zn ratio from 15 to 180 was mainly found in our study. For example, leaf P:Zn ranged from 38 to 80 (the exp. A), from 77 to 100 (the exp. B), from 35 to 69 (the exp. C) and from 73 to 168 (the exp.D). Grain P:Zn ratios were higher than leaf P:Zn (from 151 to 194 and from 124 to 168, for the exp. B and D, respectively). Phosphorus fertilization mainly increased P:Zn.
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
079-0730463-0447 - Prevladavanje stresa uzgoja kukuruza na kiselom tlu gnojidbom i oplemenjivanjem (Kovačević, Vlado, MZOS ) ( CroRIS)
079-0790462-0450 - Utjecaj kondicioniranja tla na hraniva i teške metale u sustavu tlo-biljka (Lončarić, Zdenko, MZOS ) ( CroRIS)
178-1781845-1841 - Uloga organskih gnojiva u ishrani vinove loze (Ćosić, Tomislav, MZOS ) ( CroRIS)
Ustanove:
Fakultet agrobiotehničkih znanosti Osijek,
Agronomski fakultet, Zagreb
