Pregled bibliografske jedinice broj: 567541
Potassium status as a nutritional problem in hydromorphic soils of eastern Croatia
Potassium status as a nutritional problem in hydromorphic soils of eastern Croatia // Soil Management and Potash Fertilizer Uses in West Asia and North Africa Region - Proceeding of the International Symposium of Potash Institute in cooperation with Ege University Faculty of Agriculture Bornova, Izmir Turkey / Kirkby, E. A. (ur.).
Horgen, Switzerland: International Potash Institute Horgen, Switzerland, 2010. str. 463-466 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 567541 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Potassium status as a nutritional problem in
hydromorphic soils of eastern Croatia
Autori
Petosic, Dragutin ; Kovacevic, Vlado
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Soil Management and Potash Fertilizer Uses in West Asia and North Africa Region - Proceeding of the International Symposium of Potash Institute in cooperation with Ege University Faculty of Agriculture Bornova, Izmir Turkey
/ Kirkby, E. A. - Horgen, Switzerland : International Potash Institute Horgen, Switzerland, 2010, 463-466
Skup
Soil Management and Potash Fertilizer Uses in West Asia and North Africa Region
Mjesto i datum
Antalya, Turska, 22.11.2010. - 25.11.2010
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Potassium ; fertilization ; maize yield ; K-fixing soil
Sažetak
Potassium (K) nutritional problem in the field crops, especially maize (edge necrosis of leaves, small and unfinished cob, inclination to stalk lodging at maturity stage, low yields) has been found on some hydromorphic clay soils situating in the left side of Sava valley area in the eastern Croatia region. Alkaline reaction, high levels of exchangeable magnesium (Mg) and calcium (Ca), as well as strong K- fixation are mainly in coincidences with K nutrition disorders. Three rates of KCl (containing 60% K2O) were incorporated in Ivankovo soil (pH in KCl = 7.30 ; AL-soluble P and K = 6.9 mg P2O5 and 8.8 K2O/100g) before maize sowing on the ordinary fertilization (kg/ha: 170 N + 130 P2O5 + 130 K2O) as follows (basic plot of fertilization 0.86 ha): a = 0 (control), b = 470, c = 660, d = 980. As affected by additional K fertilization grain yields of maize were increased up to 60 % and they were as follows (t/ha: 2-year means): 6.10 (a), 7.68 (b), 8.92 (c) and 9.75 (d). Also, improvement of K supplies due to K fertilization resulted by considerable decreases of stalk lodging at maturity: 48 % (a), 16 % (b), 12 % (c) and 10 % (d).
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
178-1782221-2089 - Utjecaj poljoprivrede na onečišćenje voda u vodozaštitnom području crpilišta
079-0730463-0447 - Prevladavanje stresa uzgoja kukuruza na kiselom tlu gnojidbom i oplemenjivanjem (Kovačević, Vlado, MZOS ) ( CroRIS)
Ustanove:
Fakultet agrobiotehničkih znanosti Osijek
