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EFFECTS OF NITROGEN FERTILIZER APPLICATION RATE ON YIELD OF WINTER RAPESEED (BRASSICA NAPUS L.)

R. Madjar

First published: 2018-06-20https://doi.org/10.5593/sgem2018/6.2/s25.023View metrics

Abstract

Rapeseed, one of the most important crops in the world, gained importance due to the use for food or industrial purposes. For obtaining high yields it is important to consider its requirements related to fertilization. The research was carried out in Ialomita County during the agricultural year 2015-2016, on cambic chernozem using two mid-early rapeseed hybrids: PR44DO6 and Harnas. The objectives of the research consisted in evaluation of the influence of mineral fertilization and hybrid on: rapeseed yield, average height of plant at harvest time, number of lateral branches per plant, number of siliques per plant and on seeds number per silique. It was developed a bifactorial experimental model, where a factor was rapeseed hybrids and b factor was mineral fertilization. It were adopted four fertilization schemes: DAP (18-46-0) 200 kg/ha (V1), DAP (18-46-0) 200kg/ha + CAN 200kg/ha (V2), DAP (18-46-0) 200kg/ha + CAN 450kg/ha (V3) and DAP (18-46-0) 200kg/ha + CAN 700 kg/ha (V4), where DAP and CAN are diammonium phosphate and calcium ammonium nitrate, respectively. The experimental results indicated that application of increasing doses of CAN determined significant increases of yield, higher for PR44DO6 in comparison with Harnas. Also, the values of all investigated parameters increased with fertilization. Among these, it is noteworthy the influence of fertilization on number of lateral branches per plant which contributed significantly to high yields. The results of the research emphasize the importance of fertilization on rapeseed to achieve high quality crops with high yields.

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Publication details

Title
EFFECTS OF NITROGEN FERTILIZER APPLICATION RATE ON YIELD OF WINTER RAPESEED (BRASSICA NAPUS L.)
Authors
R. Madjar
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Nano, Bio and Green - Technologies for a Sustainable Future
Publisher
STEF92 Technology
Year
2018
Pages
171-178
SWS Citekey
MADJAR201825171178
ISSN
1314-2704
ISBN
978-619-7408-51-5
Language
en
Publication type
Conference Paper
Proceedings contents
Open official contents
Keywords
calcium ammonium nitratefertilizationhybridrapeseed
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