Effect of increasing spring doses of nitrogen on yield and oil content in seeds of oilseed rape (Brassica napus L.)

Mária Varényiová,Ladislav Ducsay

doi:10.15414/afz.2016.19.02.29-34

Abstract

Effect of increasing spring doses of nitrogen on yield and oil content in seeds of oilseed rape (Brassica napus L.)

Highlights

Oilseed rape is the second most common oil-bearing crop in the world, after soybean, and the European Union is the highest producer and consumer of the crop worldwide (López-Mosquera et al, 2015)
It is in accordance with Sielig et al (2006) who stated that the application of nitrogen in the total dose of 240 kg ha-1 significantly increased seed yield of oilseed rape
The highest average yield 4.33 t ha-1 was found at treatment fertilized by the second highest dose of nitrogen 200 kg ha-1 in experiment realized in Mojmírovce in experimental years 2013–2014 and 2014–2015 (Table 5)

Summary

Introduction

Oilseed rape is the second most common oil-bearing crop in the world, after soybean, and the European Union is the highest producer and consumer of the crop worldwide (López-Mosquera et al, 2015). Oilseed rape is a member of the mustard family that is grown for the production of animal feed and vegetable oil for human consumption (Aminpanah, 2013). Nitrogen is one of the most important elements in plant nutrition, especially in yield formation (Rathke et al, 2005; Balint and Rengel, 2008). Spring doses of nitrogen are important (Varga and Ducsay, 2011). It can be concluded that the dose and the amount of applications nitrogen fertilizer is the most important factor affecting weight of seeds in pod and yield of rapeseed (Kazemeini et al, 2010). The higher dose of nitrogen and its content in seeds causes an accumulation of the protein in the seeds and at the same time decreases oil content. There is antagonistic relationship between protein content and oil content in seeds (Hassan et al, 2007)

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Results

Conclusion