An integrated fertilization system of canola (Brassica napus L.) production under different crop rotations

Mohammadi, Khosro; Rokhzadi, Asad

doi:10.1016/j.indcrop.2011.12.023

Cited by 39 publications

(26 citation statements)

References 35 publications

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“…Despite the above, intensive rotation of the same crop could have negative effects, such as frequent pest infestations, including plant pathogens (Mohammadi and Rokhzadi, 2012). This problem can be addressed by reversing soil fatigue through the introduction of new cultivars and technologies suited to their requirements (Sieling and Christen, 2015).…”

Section: Introductionmentioning

confidence: 99%

Nutrient content, fat yield and fatty acid profile of winter rapeseed ( Brassica napus L.) grown under different agricultural production systems

Stępień

Wojtkowiak

Pietrzak-Fiećko

2017

Chilean J. Agric. Res.

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Quality features of rapeseeds (Brassica napus L.) and potential for high yielding to a major extent may be defined by improvements in agricultural engineering methods that encompass biological progress. However, this is associated with fertilization and application of pesticides, which may negatively impact on environment and quality. It is thus essential to develop and improve edible oil production systems to satisfy farmer and non-threatening consumer. The aim of this study was to evaluate content of nutrients, fat yield and fatty acid profile of rapeseed grown in two crop rotation system with three levels of agricultural inputs. Three levels of technologies were used: economically (low-input), moderately intensively (medium-input) and intensively (high-input), varied in N amount and S fertilization as well as protection against pests. The medium-and high-input technologies applied in the monoculture contributed to an increased oleic acid in rapeseeds (by 5.7% and 5.5%), whereas low-input and high-input technologies resulted in an increased proportion of linoleic (by 11.6% and 2.1%) and linolenic acid (by 6.6% and 5.0%) in the monoculture rapeseeds. The medium-input level generated an increased proportion of arachidic (from 6.9% to 15.0%), octadecanoic (by 4.9%), linoleic (by 7.0%), linolenic (by 5.1%) and eicosadienoic fatty acids (by 17.7%) in rapeseeds cultivated in the crop rotation system. The increase in technological input level changed the ratio of polyunsaturated fatty acids to linoleic and linolenic acids by 5.1% and 7.4% (p < 0.05) in both crop rotation and by 4.2% and 7.9% monoculture systems. In general, the impact of winter rapeseed in crop sequence systems was found to have an insignificant impact on the content of macronutrients and trace elements in seeds. The highest fat yield was generated with the crop rotation system at the highest input level, whereas the lowest yield was recorded in the low-input monoculture technology.

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Section: Introductionmentioning

confidence: 99%

Nutrient content, fat yield and fatty acid profile of winter rapeseed ( Brassica napus L.) grown under different agricultural production systems

Stępień

Wojtkowiak

Pietrzak-Fiećko

2017

Chilean J. Agric. Res.

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“…In 2014/2015, crop production was 52,000 tons, with an average yield of 1,168 kg ha -1 (CONAB, 2015). Canola grains generally contain 38 to 50% oil (Beaudette et al, 2010;Mohammadi;Rokhzadi, 2012;Pavlista et al, 2011). Regarding thousand grain weight, SANCHES, A. C. et al the literature reports values of 2.5 to 3.8 g (Dogan et al, 2011;Kamkar et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…According to Beaudette et al (2010), the best yield results are achieved with a nitrogen level of 80 kg N ha -1 , whereas Dogan et al (2011) and Kamkar et al (2011) obtained higher yields with levels above 180 kg N ha -1 under irrigation. Canola is sensitive to water stress during periods of flowering and grain filling (Dogan et al, 2011;Mohammadi;Rokhzadi, 2012). Research studies have shown a reduction in the number of pods per plant, in thousand grain weight and in yield due to water stress approximately 34, 35 and 20-45%, respectively, in two consecutive years (Faraji et al, 2009;Tohidi-Moghadam et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Canola yield under different irrigation frequencies and nitrogen levels in the Brazilian Cerrado

2017

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In the Brazilian Cerrado, canola is grown in the off-season. During this period, rainfall is insufficient to ensure the maximum crop yield, and irrigation is needed. Canola has a high demand for nitrogen; thus, the application of this nutrient is essential for obtaining a good crop yield. Therefore, a study was conducted at the Federal University of Grande Dourados in 2012 and 2013 using a randomized block split-plot design with four repetition treatments in the plot that consisted of three irrigation frequencies (no irrigation, weekly irrigation and irrigation three times per week). Subplots received different doses of nitrogen: 0, 30, 60, 90 and 120 kg ha -1 in 2012 and 0, 60, 120, 180 and 240 kg ha -1 in 2013. In both periods, the irrigation frequencies significantly affected plant height, dry weight, grain yield, thousand grain weight and oil content. The nitrogen levels significantly affected dry weight, thousand grain weight and oil content in 2012, as well as plant height, number of pods, dry weight, grain yield and oil yield in 2013. The highest yields were obtained when irrigation was performed three times per week, corresponding to 3,001.84 kg ha -1 in 2012 and 2,516.7 kg ha -1 in 2013.Index terms: Brassica napus L.; oil seeds; tensiometry. RESUMONo Cerrado brasileiro, a canola está sendo cultivada na estação seca, sendo que durante este período a precipitação não é suficiente para garantir o máximo rendimento da cultura, por isso há necessidade de irrigação. A canola tem uma alta demanda de nitrogênio, portanto, a aplicação deste nutriente é essencial para a obtenção de um bom rendimento. Assim, foi realizado um estudo na Universidade Federal de Grande Dourados, em 2012 e 2013, utilizando-se um delineamento de blocos ao acaso com quatro repetições, os tratamentos na parcela composta por três frequências de irrigação (sem irrigação, irrigação semanal e irrigação três vezes por semana). As subparcelas receberam diferentes doses de nitrogênio: 0, 30, 60, 90 e 120 kg ha -1 em 2012; E 0, 60, 120, 180 e 240 kg ha -1 em 2013. Em ambos os períodos, as frequências de irrigação afetaram significativamente a altura da planta, o peso seco, o rendimento de grãos, o peso de mil grãos e o teor de óleo. Os níveis de nitrogênio afetaram significativamente o peso seco, o peso de mil grãos e o teor de óleo em 2012, assim como a altura da planta, o número de vagens, o peso seco, o rendimento de grãos e o rendimento de óleo em 2013. Os maiores rendimentos foram obtidos quando a irrigação foi realizada três vezes por semana, correspondendo a 3.001,84 kg ha-1 em 2012 e 2.516,7 kg ha -1 em 2013.Termos para indexação: Brassica napus L.; sementes oleaginosas; tensiometria.

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“…Whether acting as biofumigants or not, DSMs as well as green manure may improve soil fertility (Moore, 2011;Mohammadi and Rokhzadi, 2012) through incorporation of large organic matter amounts potentially suitable as nutrient sources for crops (Kumar and Goh, 2000;ThorupKristensen et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and carbon mineralization in soils amended with biofumigant or non-biofumigant plant materials

Marchetti

Lazzeri

D’Avino

et al. 2015

Industrial Crops and Products

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An integrated fertilization system of canola (Brassica napus L.) production under different crop rotations

Cited by 39 publications

References 35 publications

Nutrient content, fat yield and fatty acid profile of winter rapeseed ( Brassica napus L.) grown under different agricultural production systems

Nutrient content, fat yield and fatty acid profile of winter rapeseed ( Brassica napus L.) grown under different agricultural production systems

Canola yield under different irrigation frequencies and nitrogen levels in the Brazilian Cerrado

Nitrogen and carbon mineralization in soils amended with biofumigant or non-biofumigant plant materials

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