Original scientific paper

https://doi.org/10.31727/gzb.41.6.5

Results of application of foliar fertilizers Profert Mara, Megagreen and Zeogreen on rapeseed

Milan Pospišil orcid.org/0000-0002-9972-3940 ; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska
Ana Pospišil orcid.org/0000-0001-8338-1483 ; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska
Jasminka Butorac ; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska
Marina Bričić ; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska

Abstract

The paper presents the results of the application of foliar fertilizers (Profert Mara, Megagreen and Zeogreen)
upon the three rapeseed varieties in agroecological conditions of northwestern Croatia. The research
was conducted through a field experiment which was set up on eutrophic brown anthropogenised soil
in Zagreb during 2016/2017 year according to split block method with five replications. Five topdressing
treatments were investigated: 1) Control - KAN (54 kg ha-1 N in the first one + 33.75 kg ha-1 N in second
topdressing; 2) KAN (54 kg ha-1 N in the first topdressing) + Profert Mara 10 l ha-1 + Megagreen 2.5 kg ha-1
(first treatment) + Profert Mara 10 l ha-1 + Zeogreen 2.5 kg ha-1 (second treatment after 10 days); 3) Profert
Mara 10 l ha-1 + Megagreen 2.5 kg ha-1 (treatment in autumn) + Profert Mara 10 l ha-1 + Megagreen 2.5
kg ha-1 (two treatments at intervals of 10 days in spring ); 4) Profert Mara 10 l ha-1 + Megagreen 2.5 kg
ha-1 (two treatments at intervals of 10 days in spring); 5) Profert Mara 10 l ha-1 + Megagreen 2.5 kg ha-1
(first treatment) + Profert Mara 10 l ha-1 + Zeogreen 2.5 kg ha-1 (second application after 10 days) at three
varieties of rapeseed (PT 234, PX 113 and Ametyst), with the previous basic fertilization in all variants with
800 kg ha-1 NPK 7:20:30.
The hybrid varieties PT 234 and PX 113 had a significantly higher seed and oil yield compared to line cultivar
Ametyst. Foliar application with fertilizers Profert Mara, Megagreen and Zeogreen did not result with
significant changes in the seed and oil yield compared to the regular topdressing with KAN (54 + 33.75 kg
ha-1 N). However, the foliar application of some combinations of researched fertilizers can increase the oil
yield of the cultivar Ametyst, which should be examined through multi-year research.

Keywords

rapeseed; foliar fertilizers; yield; yield components

Hrčak ID:

214338

URI

https://hrcak.srce.hr/214338

Publication date:

20.12.2018.

Article data in other languages: croatian

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