Acta Agronomica Hungarica
Volume/Issue:
Volume 61: Issue 3
Effects of nutrient supply and sowing time on the yield and pathological traits of winter oilseed rape
Author:
P. PepóUniversity of Debrecen Institute of Crop Sciences Debrecen Hungary

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Pages:
195–205
Online Publication Date:
01 Oct 2013
Publication Date:
01 Sep 2013
Article Category:
Research Article
DOI:
https://doi.org/10.1556/AAgr.61.2013.3.3
Keywords:
oilseed rape; fertilization; sowing time; yield; diseases
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The fertilizer response of oilseed rape (Brassica napus var. oleifera f. biennis L.) was investigated on the chernozem soil in Eastern Hungary in a three-year experiment with two sowing times. The results proved that oilseed rape had high fertilizer (N+PK) demand. In the experiments, N = 210 kg ha−1 +PK proved to be the optimal fertilizer dose. The yield-increasing effect of fertilization was 800 to 1300 kg ha−1, depending on the year. The maximum yield (5000 kg ha−1) was obtained in the year with least infection. The excellent natural nutrient-providing ability of chernozem soil was confirmed by the high yield level (3000–4200 kg ha−1) of the control treatment (N = 0 kg ha−1 +PK). The results showed that the specific fertilizer utilization efficiency of oilseed rape decreased if the dose of N+PK fertilizer was increased (being 19–27 kg/1 kg NPK in the control treatment and 11–12 kg/1 kg NPK in the N = 210 kg ha−1 +PK treatment). On the other hand, fertilization improved the water utilization from 4–8 kg/1 mm precipitation + irrigation water to 11–14 kg/1 mm precipitation + irrigation water. The results of these studies confirmed that hybrid rape had excellent adaptability to the sowing time. The results of Pearson’s correlation analysis showed a strong correlation (0.6*–0.9**) between the spring precipitation and temperature and the most important diseases (Sclerotinia, Alternaria, Peronospora, Phoma) attacking oilseed rape.

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Cover Acta Agronomica Hungarica
Acta Agronomica Hungarica
Print ISSN:
0238-0161
Online ISSN:
1588-2527

Acta Agronomica Hungarica
Language English
Russian
German
French
Size  
Year of
Foundation		 1950
Publication
Programme		 ceased
Volumes
per Year		  
Issues
per Year		  
Founder Magyar Tudományos Akadémia   
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0238-0161 (Print)
ISSN 1588-2527 (Online)

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