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Pregled bibliografske jedinice broj: 567541

Potassium status as a nutritional problem in hydromorphic soils of eastern Croatia


Petosic, Dragutin; Kovacevic, Vlado
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)


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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, 22-25.11. 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


Projekt / tema
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 - )

Ustanove
Fakultet agrobiotehničkih znanosti Osijek

Profili:

Avatar Url Vlado Kovačević (autor)

Avatar Url Dragutin Petošić (autor)

Citiraj ovu publikaciju

Petosic, Dragutin; Kovacevic, Vlado
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)
Petosic, D. & Kovacevic, V. (2010) Potassium status as a nutritional problem in hydromorphic soils of eastern Croatia. U: Kirkby, E. (ur.)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.
@article{article, editor = {Kirkby, E.}, year = {2010}, pages = {463-466}, keywords = {Potassium, fertilization, maize yield, K-fixing soil}, title = {Potassium status as a nutritional problem in hydromorphic soils of eastern Croatia}, keyword = {Potassium, fertilization, maize yield, K-fixing soil}, publisher = {International Potash Institute Horgen, Switzerland}, publisherplace = {Antalya, Turska} }




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