scholarly journals The fluctuation of molybdenum content in oilseed rape plants after the application of nitrogen and sulphur fertilizers

2011 ◽  
Vol 52 (No, 7) ◽  
pp. 301-307 ◽  
Author(s):  
J ◽  
D. Pavlíková ◽  
P. Tlustoš ◽  
K. Sýkora ◽  
J. Černý
Keyword(s):  
Oilseed Rape ◽  
Field Trials ◽  
Fertilizer Application ◽  
Molybdenum Content ◽  
Control Treatment ◽  
Flowering Period ◽  
Winter Oilseed Rape ◽  
Cultivation Technology ◽  
Fertilizer Rates ◽  
S Fertilizers

The effect of N-S fertilizers on the molybdenum content in oilseed rape plants was investigated in precision field trials. Evaluation was carried out on unfertilized control and two treatments of single fertilizer rates in the first spring fertilizer application, using 100 kg N/ha in AN treatment (nitrochalk) and 100 kg N/ha + 50 kg S/ha in ANS treatment (ammonium nitrate and ammonium sulphate). The results confirmed the significance of sulphur fertilization for the winter oilseed rape plant’s cultivation technology, even on fertile soils in the CzechRepublic. The control treatment produced a yield of 3.7 t/ha, while in the AN treatment the yield was 49% higher, and the ANS treatment was 60% higher. An antagonistic relationship between the sulphate and molybdenum anions in their absorption by the plants was demonstrated. The molybdenum content in the flowering period of the plants was determined in mg/kg as follows – in the ANS treatment: 0.17 in root, 0.12 in stem, 1.56 in upper leaves, 0.90 in lower leaves, and 1.17 in the flower petals. Higher and statistically more significant molybdenum levels were determined in the AN treatment: 0.21 in the root, 0.19 in the stem, 2.40 in the upper leaves, 1.72 in the lower leaves, and 1.50 mg/kg in the flower petals. The total above-ground biomass of the plants in the flowering period had accumulated molybdenum at 6.06 g/ha in the ANS treatment, and 8.44 g/ha in the AN treatment.

scholarly journals Analysis of Changes in Soil Organic Carbon, Energy Consumption and Environmental Impact Using Bio-Products in the Production of Winter Wheat and Oilseed Rape

2020 ◽  
Vol 12 (19) ◽  
pp. 8246
Author(s):  
Darius Juknevičius ◽  
Zita Kriaučiūnienė ◽  
Algirdas Jasinskas ◽  
Egidijus Šarauskis
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Organic Carbon ◽  
Environmental Impact ◽  
Soil Organic Carbon ◽  
Winter Wheat ◽  
Environmental Impacts ◽  
Oilseed Rape ◽  
Control Treatment ◽  
Winter Oilseed Rape

Agricultural management, environmentally friendly technologies, chemical, organic and bio-based substances used, as well as meteorological factors, have a significant impact on the fluctuations of soil organic carbon (SOC). The aim of this research was to analyze the effect of different biopreparations on the changes of SOC content and the winter wheat and winter oilseed rape yields by assessing the energy consumption efficiency and the environmental impacts. The experimental research was conducted from 2017 to 2019 in three different treatments, in two of which were used either a molasses and magnesium sulphate based-biopreparation (T1) or a bacteria-based biopreparation (T2), while treatment T3 was applied as a control where no biopreparations were used. The dynamics of SOC content were analyzed at two depths: 0–10 and 10–20 cm. For the analysis of energy efficiency indicators and environmental impacts, the greenhouse gas (GHG) and energy consumption conversion equivalents were used. A summary of the results showed that both types of biopreparations had a positive effect on the changes of SOC content, which was especially evident in the deeper layers at 10–20 cm depth, where, irrespective of the crop type, a more significant increase of the SOC content was observed every year of the experiment compared to the control treatment. Biopreparations had a significant effect in increasing the winter wheat and winter oilseed rape yield. The best energy efficiency ratio was observed in winter wheat (4.84) and winter oilseed rape (5.11) in treatment T1. The results of the environmental impact assessment showed that the lowest GHG emissions were recorded in the winter wheat production in treatment T1 at 108.7–149.1 kg CO2eq Mg−1, while the highest were observed in oilseed rape production in the control treatment T3 at 343.4 kg CO2eq Mg−1.

scholarly journals Soil Extracellular Enzyme Activities and Uptake of N by Oilseed Rape Depending on Fertilization and Seaweed Biostimulant Application

Agronomy ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 480 ◽  
Author(s):  
Anetta Siwik-Ziomek ◽  
Małgorzata Szczepanek
Keyword(s):  
Oilseed Rape ◽  
Field Experiments ◽  
Extracellular Enzyme ◽  
Winter Oilseed Rape ◽  
N Accumulation ◽  
Development Stages ◽  
Npk Fertilizer ◽  
Fertilizer Rates ◽  
Insufficient Knowledge ◽  
Npk Fertilization

The present study has aimed at enhancing the insufficient knowledge of functional soil enzymes properties influenced by inorganic fertilization and biostimulant application to increase the uptake of nitrogen affecting the winter oilseed rape yield. Field experiments were conducted in Poland (53° N, 18° E) in Alfisol (USDA). In this experiment, the NPK rates applied were as follows: high 180 N, 70 P and 160 K 132 N (kg ha−1) or low 144 N, 35 P and 66 K (kg ha−1); fertilization with elemental S 36 or 0 (kg ha−1); and the seaweed biostimulant Kelpak was applied or there was no such treatment. Due to low NPK fertilization rates, the activity of dehydrogenases, peroxidases, and catalase increased in subsistent generative development stages from flowering to ripening. At the ripening stage, the activity of these enzymes, as well as nitroreductase activity, were inhibited by high NPK fertilizer rates. The seaweed biostimulant application and S fertilization increased N accumulation in plants of oilseed rape in generative development, by 16% and 13%, respectively, as compared with the lack of these treatments. The application of S increased the uptake of nitrogen in shoots and in whole oilseed rape plants only after application of higher rates of NPK.

scholarly journals Response of Cowpea (Vigna unguiculata L. Walp) to Time of Application and Nitrogen Fertilizer on the Degraded Soil of Southern Guinea Savanna Zone of Nigeria

2020 ◽  
pp. 36-42
Author(s):  
E. Ndor ◽  
U. D. Faringoro
Keyword(s):  
Nitrogen Fertilizer ◽  
Seed Weight ◽  
Root Nodules ◽  
Block Design ◽  
Field Trials ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Time Of Application ◽  
Significant Difference ◽  
Fertilizer Rates

Field trials were conducted during 2017 and 2018 rainy season, to investigate the effect of nitrogen fertilizer rates and time of application on the growth and yield of cowpea. The treatment consisted of three levels of urea: 0, 40, 80 kg N ha-1 and the times of fertilizer application: during planting of cowpea, 2 weeks after planting, 4 weeks after planting and 6 weeks after planting; which were factorially combined to form twelve treatments and laid in Randomized Complete Block Design (RCBD). The results showed that, Nitrogen fertilizer rates and time of application had a significant increased on all the growth and yield parameters of cowpea in both years of trials. Application of 80 kg N ha-1 produced the highest number of cowpea leaves (134.45 and 139.23), number of branches (9.45 and 10.54), vine length (78.23cm and 80.12cm) and highest seed weight of 0.52 t ha-1 in both 2017 and 2018 trials. However, the control plots produced plants with the highest number of root nodules (14.78 and 12.49) in both years of cropping. Also, application of nitrogen fertilizer at two weeks after planting of cowpea produced the highest growth and seed weight of 0.68 t ha-1 in 2017 cropping; while in 2018 trial, application of nitrogen fertilizer at two weeks after cowpea planting produced seed yield of 0.69tha-1 which is statistically similar with application of nitrogen fertilizer on the fourth week after planting which produced 0.55 t ha-1 of cowpea seeds. The interaction between nitrogen fertilizer application rates and time of application did not showed any significant difference in cowpea yield and yield components in both years of cropping.

scholarly journals Response of winter rape (Brassica napus L. ssp. oleifera Metzg., Sinsk) to foliar fertilization and different seeding rates

2012 ◽  
Vol 65 (2) ◽  
pp. 161-170 ◽  
Author(s):  
Cezary A. Kwiatkowski
Keyword(s):  
Oilseed Rape ◽  
Raw Material ◽  
Control Treatment ◽  
Glucosinolate Content ◽  
Row Spacing ◽  
Seeding Rate ◽  
Winter Oilseed Rape ◽  
Winter Rape ◽  
Npk Fertilizers ◽  
Foliar Fertilization

A field experiment in growing winter rape was carried out during the period 2009-2011 in a family farm (owned by Mr. M. Bednarczyk) located in Jaroszewice (Lublin region), on podzolic soil. Plant biometric features as well as yield and seed qualitative parameters (oil, protein and glucosinolate content) were evaluated depending on the following rates of soil NPK fertilizers and on foliar fertilization (autumn spraying with the fertilizer solution): 100% and 75% of NPK as well as urea + nickel chelate + MgSO4H2O; 100% and 75% of NPK as well as urea + Plonvit R + MgSO<sub>4</sub>H<sub>2</sub>O). Plots without foliar fertilization (only 100% of NPK) were the control treatment. The other experimental factor was the seeding rate (2.5 kg×ha<sup>-1</sup> – 30 cm row spacing; 4 kg×ha<sup>-1</sup> – 18 cm row spacing). Foliar spraying was done once in the autumn in the second decade of October. Tillage as well as mechanical and chemical control of agricultural pests in the plantation were typical for this plant species and consistent with the recommendations for winter rape protection. A hypothesis was made that the application of foliar fertilizers would have a beneficial effect on winter rape productivity, at the same time maintaining the high quality of raw material. It was also assumed that a reduction in the seeding rate of winter oilseed rape would result in reduced plant lodging and an increased number of siliques per plant; as a consequence, seed and oil productivity would be at a level not lower than that obtained at the higher seeding rate. The present study has proved that foliar fertilization of winter oilseed rape in the autumn period contributes to improved plant winter hardiness and increased productivity. The application of foliar fertilizers also enables the rates of basic mineral NPK fertilizers to be reduced by 25% without detriment to seed yield. Foliar fertilizers have been found to have a weaker effect on changing the chemical composition of rapeseed. The study has shown that, from the productive point of view, it is justified to use the lower seeding rate (2.5 kg×ha<sup>-1</sup>), since winter rape yield (seed and oil yield) did not significantly differ from that found in the case of the higher seeding rate (4.0 kg×ha<sup>-1</sup>).

scholarly journals Determination of the Titanium Contents in the Winter Oilseed Rape Plants (Brassica napus L.) by the Application of Fertilizer Containing Titanium

2016 ◽  
Vol 64 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Peter Kováčik ◽  
Vladimír Šimanský ◽  
Pavel Ryant ◽  
Marek Renčo ◽  
Jozef Hudec
Keyword(s):  
Oilseed Rape ◽  
Titanium Content ◽  
Control Treatment ◽  
Growth Stages ◽  
Winter Oilseed Rape ◽  
Brassica Napus L ◽  
Aboveground Phytomass ◽  
Small Plot ◽  
Plant Sampling

In order to obtain the information about changes of titanium contents in the phytomass during the growing season of winter oilseed rape and about the titanium contents drawn by the rape yield during two farming years the small plot field trial was established. In the trial the fertilizer Mg-Titanit (MgTi) containing 8.5 g of titanium in 1 liter was used. The experiment consisted of 5 treatments. 0 – control treatment without MgTi fertilizer; 2xTi0.2 – two applications of MgTi in the dose of 0.2 l/ha; 3xTi0.2 – three applications of MgTi in the dose of 0.2 l/ha; 2xTi0.4 – two applications of MgTi in the dose of 0.4 l/ha; 3xTi0.4 – three applications of MgTi in the dose of 0.4 l/ha. The fertilizer was applied in spring during two, or three different growth stages: BBCH 50, BBCH 59, BBCH 66. The first plant sampling was carried out shortly before the first application of fertilizer (BBCH 50). The second, third and fourth sampling was taken 2–3 weeks after the application of Mg-Titanitu (BBCH 59, BBCH 66, BBCH 71). The obtained results showed that the titanium content in the phytomass of rape was falling during the monitored period. The titanium content in the rape aboveground phytomass varied in the interval from 16.81 to 67.6 mg/kg and in the root in the interval from 56.6 to 258.81 mg/kg. The titanium application on plant leaves in the quantities from 3.4 to 10.2 g per hectare of soil did not have the unambiguous impact on the titanium content in the rape phytomass. In the yield of one tonne of seed and appropriate quantity of rape straw on average 20 grams of titanium was taken in.

scholarly journals The fluctuation of copper content in oilseed rape plants (Brassica napus L.) after the application of nitrogen and sulphur fertilizers

2008 ◽  
Vol 53 (No. 4) ◽  
pp. 143-148 ◽  
Author(s):  
J. Balík ◽  
D. Pavlíková ◽  
P. Tlustoš ◽  
J. Černý ◽  
M. Jakl
Keyword(s):  
Oilseed Rape ◽  
Copper Content ◽  
Dry Matter ◽  
Field Experiments ◽  
Growth Period ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Individual Treatment ◽  
S Fertilizers ◽  
Different Parts

The influence of N-S fertilizers on the copper content in the inter oilseed rape plants was studied in field experiments. The evaluation involved two treatments of a single rate for the first spring fertilizer application with 100 kg N/ha in the AN treatment (nitrochalk) and 100 kg N/ha + 50 kg S/ha in the ANS treatment (ammonium nitrate and ammonium sulphate). A positive influence of the ANS fertilizer on the copper contents in different parts of plants was determined. The highest Cu concentrations were determined in the leaves and inflorescences, the lowest ones occurred in the stem. The concentration of Cu ranged within the interval of 1.56&minus;8.75 mg Cu/kg of dry matter depending on the growth period and the part of the plant. No differences in copper content were determined in the seeds of individual treatment. The highest uptake in the above-ground parts of the plants was recorded in the green pod period and amounted to 57.4 g Cu/ha for the ANS treatment.

scholarly journals The response of winter oilseed rape to diverse foliar fertilization

2019 ◽  
Vol 65 (No. 3) ◽  
pp. 125-130 ◽  
Author(s):  
Wacław Jarecki ◽  
Jan Buczek ◽  
Dorota Bobrecka-Jamro
Keyword(s):  
Oilseed Rape ◽  
Plant Density ◽  
Fertilizer Application ◽  
Plant Analysis ◽  
Winter Oilseed Rape ◽  
Area Index ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
Fat Yield ◽  
Thousand Seed Weight

In this experiment, the response of winter oilseed rape cv. SY Alister F1 to diverse foliar fertilization was evaluated. Foliar fertilization with the preparation Insol 5 was applied at the following dates: control (without a foliar fertilizer); autumn; autumn + spring; autumn + twice spring; spring and twice spring. Each variant in which autumn foliar fertilization was carried out contributed to a significant increase in plant density before harvest. In turn, each variant with spring foliar fertilization significantly increased the number of pods per plant compared to the control. Variants with autumn + spring, autumn + twice-spring, and twice-spring foliar fertilization influenced the increase in the soil-plant analysis development index (SPAD), thousand seed weight and protein and fat yield. The leaf area index was the highest after foliar fertilization applied in autumn + in spring or autumn + twice in spring. Foliar fertilization affected a significant increase in seed yield compared to the control. The content of protein and magnesium in seeds was the highest after the fertilizer application in autumn + twice in spring or twice in spring.

scholarly journals Influence of Soil-Borne Inoculum of Plasmodiophora brassicae Measured by qPCR on Disease Severity of Clubroot-Resistant Cultivars of Winter Oilseed Rape (Brassica napus L.)

Pathogens ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 433
Author(s):  
Ann-Charlotte Wallenhammar ◽  
Zahra Saad Omer ◽  
Eva Edin ◽  
Anders Jonsson
Keyword(s):  
Disease Severity ◽  
Oilseed Rape ◽  
Plasmodiophora Brassicae ◽  
Severity Index ◽  
Field Trials ◽  
Substantial Variation ◽  
Winter Oilseed Rape ◽  
Brassica Napus L ◽  
Resistant Cultivars ◽  
Gene Copies

Use of resistant cultivars is considered the most effective tool in managing clubroot. Three clubroot-resistant commercial winter oilseed rape (OSR) cultivars and a susceptible ‘Cultivar mix’ were evaluated for disease severity index (DSI) and yield performance in field soils, selected for varying abundance of natural inoculum of Plasmodiophora brassicae. Seven field trials were carried out during 2017–2019 in winter OSR crops, and comparative bioassays were performed in a growth chamber. Substantial variation in clubroot infection between years was observed in the field trials. For Cultivar mix, a negative correlation (y = −252.3ln(x) + 58,897.6) was found between inoculum density and seed yield in five trials, whereas no correlation was found for the resistant cultivars. In bioassays, Cultivar mix exhibited a significantly high correlation between DSIb and number of gene copies g−1 soil (R2 = 0.72). For resistant cvs., Mentor and Alister, correlation was R2 = 0.45 and 0.58, respectively, indicating that resistance was under pressure. In field trials, DSIf of the resistant cultivars was lower (<27). The recommendation is thus to use clubroot-resistant cultivars of OSR as part of Integrated Pest Management in situations where abundance of P. brassicae DNA exceeds 1300 gene copies g−1 soil.

scholarly journals Multi-environmental evaluation of winter oilseed rape genotypic performance using mixed models

Euphytica ◽  
2021 ◽  
Vol 217 (5) ◽  
Author(s):  
Jan Bocianowski ◽  
Alina Liersch
Keyword(s):  
Oilseed Rape ◽  
Mixed Models ◽  
Plant Material ◽  
Block Design ◽  
Field Trials ◽  
Winter Oilseed Rape ◽  
Environmental Evaluation ◽  
Average Value ◽  
Seed Yields ◽  
Selection Of

AbstractThe production of winter oilseed rape (WOSR) (Brassica napus) together with increasing seed yields per hectare is one of the strategies for breeding the genetic base of oilseed rape genotypes adapted to different environments. The main objective of this study was to evaluate the genotypic performance of 25 winter oilseed rape genotypes using mixed models. The plant material was examined in five locations in Poland. Field trials were carried out in a randomized complete block design with four replicates. The REML/BLUP was used to estimate genetic parameters. Selection of genotypes was made on the basis of genetic values by the harmonic mean of relative performance these parameters. The mean heritability for genotype had an average value at a high accuracy of selection, while additionally it facilitated selection of agronomically superior individuals. Three restorer lines PN18, PN17 and PN21, CMS ogura line PN64 as well as hybrids PN66 × PN21 and PN64 × PN21 characterized good adaptability and stability of seed yield. There were similarities among the statistics ($$\hat{\mu } + \hat{g}$$ μ ^ + g ^ ), adaptability and stability of genetic values in the discrimination of the most productive genotypes by best linear unbiased predictor analysis. Mixed models can be recommended as a potential selection method for the inclusion of new plant material in different oilseed rape breeding programs aimed at developing new WOSR cultivars.

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