Naslov
Response of maize, wheat and barley to phosphorus and potassium fertilization

Autori
Kovačević, Vlado ; Stojić, Biserka ; Rastija, Mirta ; Brkić, Ivan ; Drezner, Georg

Izvornik
Cereal Research Communications (0133-3720) 37 (2009), S1; 129-132

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
maize ; wheat ; barley ; grain yield ; fertilization ; Phosphorus ; Potassium

Sažetak
The experiment with increased rates of fertilization was conducted in spring of April 2003 in Badljevina (west edge of Pozega- Slavonia County). Total seven treatments were applied as follows (kg ha-1): a) standard fertilization or control (160 N + 150 P2O5+ 100 K2O) ; b) a + 500 P2O5 ; c) a + 1000 P2O5 ; d) a + 500 K2O ; e) a + 1000 K2O, f) a + 500 P2O5 + 500 K2O and g) a + 1000 P2O5 + 1000 K2O. Phosphorus was added as MAP (monoammonium- phosphate: 12% N + 52% P2O5) and potassium in KCl form (60% K2O). The field trial was conducted by randomized block design in four replicates. Gross of the individual plot of fertilization was 46.2 m2 (11 x 4.2 m). Crop rotation has been as follows: maize (2003-2004) – wheat (2005) – maize (2006) - winter barley (2007) – maize (2008). In general, maize yields in the experiment were high (4-year mean 11.08 t ha-1) and response to applied fertilization was low because only in 2006 significant yield increase for 10% was found as result of ameliorative P fertilization. However, wheat and barley responded by considerably yield increases (wheat up to 17%: 6.14 and 7.17 t ha- 1 ; barley up to 19%: 6.19 and 7.35 t ha-1 ; for the control and the higher rate of PK, respectively).

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA