scholarly journals Response of winter oilseed rape to differentiated foliar fertilisation

2021 ◽  
Vol 30 (1) ◽  
Author(s):  
Piotr Żarczyński ◽  
Stanisław Sienkiewicz ◽  
Jadwiga Wierzbowska ◽  
Sławomir Józef Krzebietke
Keyword(s):  
Oilseed Rape ◽  
Seed Yield ◽  
Total Protein ◽  
Winter Oilseed Rape ◽  
Foliar Nutrition ◽  
Aerial Parts ◽  
North Eastern ◽  
Macro And Micronutrients ◽  
The Impact ◽  
Foliar Fertilisation

This article presents results of a three-year field experiment laid out on medium textured soil, in north-eastern Poland. Winter oilseed rape was sprayed with foliar fertilisers AgravitaActive 48 (AA48) - NPK 8:8.7:16.6 and AgravitaActive70 (AA70) - NPK 10:22.7:6.6 at different phases of the crop’s vegetative growth (BBCH 14, BBCH 35). The impact of the fertilisers on the yield of seeds, straw, total protein, crude fat, and on the content of macro- and micronutrients in aerial parts (BBCH 20 and 89) and roots (BBCH 20) of oilseed rape was evaluated. Foliar nutrition of oilseed rape plants with AA48 and AA70 significantly increased the seed yield of oilseed rape. The best yield-stimulating effect was achieved after the application of AA48 in autumn. Fertilisation of oilseed rape in that season of the year caused an increase in seed yield by 430 kg ha-1. Each fertiliser contributed to a rise in the yield of protein and yield of crude fat but had no effect on the content of magnesium, copper, and zinc in seeds.

scholarly journals Risk Potential of Clubroot Disease on Winter Oilseed Rape

Plant Disease ◽  
2015 ◽  
Vol 99 (5) ◽  
pp. 667-675 ◽  
Author(s):  
Becke Strehlow ◽  
Friederike de Mol ◽  
Christine Struck
Keyword(s):  
Oilseed Rape ◽  
Seed Yield ◽  
Inoculum Density ◽  
Greenhouse Experiment ◽  
Resistant Cultivar ◽  
Yield Losses ◽  
Winter Oilseed Rape ◽  
Clubroot Disease ◽  
The Impact ◽  
Risk Potential

Clubroot disease caused by Plasmodiophora brassicae is an important disease of cruciferous plants. Although the pathogen is widespread and has been reported to cause high yield losses, the impact on winter oilseed rape (OSR) has not been experimentally verified. To quantify the risk potential of P. brassicae, we conducted two closely linked experiments. A semicontrolled experiment used artificial soil infestation at inoculum densities between 106 and 108 spores liter−1 of soil to detect the impact on seed yield and yield components of a susceptible and resistant OSR cultivar. A greenhouse experiment was implemented using the soil of the semicontrolled experiment after cropping the two cultivars to quantify the influence of cultivar resistance on soil inoculum. According to cumulative link mixed models, disease rating was positively correlated with the amount of inoculum. Linear regression analyses revealed a negative correlation between seed yield and inoculum density. Yield losses of 60% already appeared at the lowest inoculum density. Plant losses and reduced seed per pod were accountable for yield losses. Although the resistant cultivar showed clubroot symptoms, seed yield was not affected by the pathogen. The greenhouse experiment revealed that clubroot severity in subsequent OSR was reduced after cropping the resistant cultivar. This study showed significant yield damage of P. brassicae already at low infestation levels.

scholarly journals The Effect of Autumn Foliar Fertilization on the Yield and Quality of Winter Oilseed Rape Seeds

Agronomy ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 849 ◽  
Author(s):  
Krzysztof Józef Jankowski ◽  
Mateusz Sokólski ◽  
Artur Szatkowski
Keyword(s):  
Oilseed Rape ◽  
Fat Content ◽  
Neutral Detergent Fiber ◽  
Total Protein Content ◽  
Winter Oilseed Rape ◽  
Ne Poland ◽  
Yield And Quality ◽  
Chemische Industrie ◽  
North Eastern ◽  
Feed Value

This paper presents the results of a 3-year field experiment conducted in north-eastern (NE) Poland to determine the influence of the autumn application of foliar macronutrient and micronutrient fertilizers (control, one application in BBCH (Biologische Bundesanstalt, Bundessortenamt and Chemische Industrie) stage 16 (six leaves unfolded)), two applications in BBCH stages 14 (four leaves unfolded), and 16 (six leaves unfolded) on the growth and development of winter oilseed rape plants, nutrient accumulation, overwintering success, yield components, yield, nutritional value (crude fat content, fatty acid concentrations), and feed value (total protein content, concentrations of acid detergent fiber and neutral detergent fiber, quantitative and qualitative composition of glucosinolates) of seeds. When applied in BBCH stages 14 and 16, foliar fertilizers stimulated the development of leaf rosettes, increased the accumulation of minerals in aerial rosette parts (N, K, and Mg) and roots (K, Cu, Mn, and Fe), and contributed to the overwintering success of winter oilseed rape plants (by 8–11%). The application of foliar macronutrient and micronutrient fertilizers in autumn increased seed yield (by 0.25 Mg ha−1), contributed to a significant increase in the crude fat content of seeds (by 1.3–7.4 g kg−1 dry matter (DM), increased the content of oleic acid, decreased the concentration of linoleic acid, and increased the content of glucosinolates, mostly the alkenyl fraction with antinutritional properties.

The effect of biostimulators on the content of crude oil and total protein in winter oilseed rape (Brassica napusL.) seeds

2018 ◽  
Vol 69 (2) ◽  
pp. 121-125 ◽  
Author(s):  
Marek Gugała ◽  
Anna Sikorska ◽  
Krystyna Zarzecka ◽  
Krzysztof Kapela ◽  
Iwona Mystkowska
Keyword(s):  
Crude Oil ◽  
Oilseed Rape ◽  
Total Protein ◽  
Winter Oilseed Rape

scholarly journals The impact of foliar feeding on the yield components of three winter rape morphotypes (Brassica napus L.)

2020 ◽  
Vol 5 (1) ◽  
pp. 107-116
Author(s):  
Anna Sikorska ◽  
Marek Gugała ◽  
Krystyna Zarzecka
Keyword(s):  
Amino Acids ◽  
Brassica Napus ◽  
Seed Yield ◽  
Growth Type ◽  
Winter Rape ◽  
Foliar Nutrition ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
The Impact ◽  
Number Of Seeds

AbstractThe aim of the study was to determine the impact of foliar fertilizers containing amino acids, sulphur, boron on the number of productive branches, the number of pods per plant, the number of seeds in pods and the length of pods of three winter rape (Brassica napus) varieties (Monolit, PX115, PT248). The research was carried out in 2016-2017, 2017-2018, 2018-2019 at the Zawady Agricultural Experimental Station (52o03’N and 22o33’E) belonging to the University of Natural Sciences and Humanities in Siedlce, Poland. The field experiment was set up in a split-plot layout in triplicate. The area of one plot for harvest was 21 m2. The examined factors were I - morphotipe of winter rape: population variety (Monolit), hybrid restored with a semi-dwarf growth type (PX115), hybrid restored with a traditional growth type (PT248). II - types of foliar feeding: 1. treatment without biostimulator and foliar feeding, 2. Bioregulator Aminoplant, 3. Foliar fertilizer Siarkomag with foliar fertilizer Bormax, 4. Foliar fertilizer Siarkomag with foliar fertilizer Bormax and Aminoplant. Variable climatic conditions in the years of the experiment affected the studied components of seed yield of three L. morphotypes. In the year 2016-2017 of research, the plants produced the most productive branches, had the longest pods filled with the largest number of seeds. Foliar nutrition with a biostimulator containing amino acids did not significantly affect the increase of the number of productive branches, pods per plant and pod length compared to the variant on which no foliar fertilization was applied. Foliar fertilization with S and B in combination with bio-stimulators was the most effective in increasing the components of seed yield, while the number of productive branches and length of pods under the influence of foliar fertilizers was the same regardless of the application of the biostimulator. The long-stem variety had longer pods that were filled with more seeds than the others.

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