Naslov
Residual effect of superphosphate on a calcareous chernozem soil

Autori
Kádár, Imre ; Ragályi Peter ; Lončarić, Zdenko ; Kovačević, Vlado

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 45th Croatian and 5th International Symposium of Agriculture / Marić, Sonja ; Lončarić, Zdenko - Osijek : Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2010, 766-770

ISBN
978-953-6331-79-6

Skup
45th Croatian and 5th International Symposium of Agriculture

Mjesto i datum
Opatija, Hrvatska, 15.02.2010. - 19.02.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nutrient balances ; fertilization ; P-residual effect ; field trial

Sažetak
A P exhaustion long-term field experiment, with initial P2O5 doses of 0, 40, 80, 120, 240, 360, 480, 600 and 720 kg/ha, was established in autumn 1972 on a loamy calcareous chernozem soil containing about 3% humus, 5% CaCO3, with moderate supplies of N, S and K, and low available P-content in plow-layer (Olsen-P2O5 = 15-20 mg/kg, AL-P2O5 = 70-80 mg/kg). The trial, i.e. P-aftereffect lasted for 20 years. Studying the long-term effects of superphosphate in field experiment on a calcareous chernozem soil, it could be demonstrated that the „half life time‖ of residual P was 5-7 years compared to the fresh given.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA