Naslov
Liming and PK-fertilization effects on maize yield and grain quality

Autori
Josipović, Marko ; Kovačević, Vlado ; Brkić, Ivan

Izvornik
Növénytermelés (0542-2108) 62 (2013), Supplement; 75-79

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

Ključne riječi
liming ; PK-fertilization ; grain yield ; maize ; protein contents ; starch contents

Sažetak
The stationary field experiment was conducted in spring 2004 (April, 23) on Pavlovac very acid soil by the application treatments as follows: a = conventional fertilization, b = a + NPK-1, c = a + NPK-2, d = a + NPK-3 and e = a + NPK-4. The fertilizer NPK 10:30:20 was source of P and K (using in amounts 416, 1249, 2082, 2916 and 3748 kg ha-1, for the treatments a, b, c, d and e, respectively). Nitrogen amount was equalized for all treatments by the addition of adequate quantities of CAN (calcium ammonium nitrate containing 27% N). The experiment was conducted in four replicates and the basic plot size was 77 m2. In the following years the plots was fertilized uniformly in the level of conventional fertilization. Additional intervention in the experiment was liming of the third and fourth replicates by 10 t ha-1 with granulated fertdolomite (24.0% CaO + 16.0% MgO + 3.0% N + 2.5% P2O5 + 3.0% K2O). In this study, response of maize (the hybrid OsSK 2893) was shown. Liming and ameliorative PK- fertilization in spring 2004 had significantly subsequent effects on yield because of yield increases for 8% (liming effects) and 11% (PK- effects), respectively. With that regard, the PK-2 rate was adequate. Liming had considerably effects on increase of protein contents in grain from 9.9% (the control) to 10.6% (liming), while by the using ameliorative PK- fertilization there is tendency to increases of grain protein contents. Grain starch contents was independent on liming and PK-treatments.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

Napomena
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