Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2015
Volume 18
Issue 2
Topic:
Agronomy
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Szulc P. , Rybus-Zając M. , Jagła M. 2015. INFLUENCE OF MAIZE HYBRID TYPE (ZEA MAYS L.) AND N DOSE ON NITROGEN EUTROPHICATION OF THE ENVIRONMENT, EJPAU 18(2), #08.
Available Online: http://www.ejpau.media.pl/volume18/issue2/abs-08.html

INFLUENCE OF MAIZE HYBRID TYPE (ZEA MAYS L.) AND N DOSE ON NITROGEN EUTROPHICATION OF THE ENVIRONMENT

Piotr Szulc1, Magdalena Rybus-Zając2, Małgorzata Jagła1
1 Department of Agronomy, Poznań University of Life Sciences, Poland
2 Department of Plant Physiology, Poznań University of Life Sciences, Poland

 

ABSTRACT

The field experiment was carried out in the Department of
Agronomy of the Poznań University of Life Sciences, in the fields of the
Research and Education Unit in Swadzim, in the years 2012–2013. The study
examined influence of maize hybrid type (Zea mays L.) and nitrogen doses
on nitrogen eutrophication of the environment. The Nmin method was used for assessment
of the amount of mineral nitrogen in soil after plant harvest. The N-NO3 form
exhibited greater variability when compared to the N-NH4 form. The
content of mineral nitrogen in soil after harvest of traditional cultivar SY
Cooky was significantly higher in comparison with “stay-green” type
cultivar Drim. The amount of Nmin increased in proportion to nitrogen
dose. The amount of the nitrate nitrogen form (more susceptible to washing out)
rapidly increased after exceeding the dose of 150 kg N·ha-1 when
compared to the ammonium form.

Key words: stay-green (SG), maize, nitrogen, Nmin.


Piotr Szulc
Department of Agronomy, Poznań University of Life Sciences, Poland
Dojazd 11
60-632 Poznań
Poland
email: pszulc@up.poznan.pl

Magdalena Rybus-Zając
Department of Plant Physiology, Poznań University of Life Sciences, Poland
Wołyńska 35
60-637 Poznań
Poland

Małgorzata Jagła
Department of Agronomy, Poznań University of Life Sciences, Poland
Dojazd 11
60-632 Poznań
Poland

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