scholarly journals Effects of sulfur application on sulfur and arsenic absorption by rapeseed in arsenic-contaminated soil

2011 ◽  
Vol 57 (No. 9) ◽  
pp. 429-434 ◽  
Author(s):  
L. Zhong ◽  
C. Hu ◽  
Q. Tan ◽  
J. Liu ◽  
X. Sun
Keyword(s):  
Brassica Napus ◽  
Contaminated Soil ◽  
Biomass Yield ◽  
Application Rate ◽  
Pot Experiment ◽  
Arsenic Content ◽  
Brassica Napus L ◽  
Treatment Application ◽  
Different Parts

A pot experiment was conducted to study the effects of arsenic (As) and sulfur (S) interaction on yield and their accumulation and distribution in rapeseed (Brassica napus L.). The results showed that (1) at the same level of S treatment, application of As significantly decreased rapeseed grain and biomass yield; (2) Application of S significantly increased the grain and biomass yield of rapeseed when As was applied; (3) When As application rate increased, As content significantly increased in different parts of rapeseed, and reached their highest level at<br />120 mg/kg As. Arsenic content from seed were all below 1 mg/kg AS. Addition of S significantly reduced As contents in root and grain of rapeseed.

scholarly journals Nutrient uptake, yield and taste of oilseed rape (Brassica napus L.) and soil chemical properties following amendment with uncomposted and composted tobacco waste and cattle manure

2020 ◽  
Vol 116 (9/10) ◽  
Author(s):  
Nothandoa Dunjana ◽  
Rebecca Zengeni ◽  
Charity Pisa ◽  
Menas Wuta ◽  
Pardon Muchaonyerwa
Keyword(s):  
Brassica Napus ◽  
Nutrient Uptake ◽  
Oilseed Rape ◽  
Biomass Yield ◽  
Chemical Properties ◽  
Brassica Napus L ◽  
Mineral Fertiliser ◽  
Dry Biomass ◽  
Fertiliser Use ◽  
Tobacco Waste

The inadequacy of the nutrient supply of most tropical and sub-tropical soils may be curbed through organic material recycling, thus reducing the need for mineral fertiliser use. To promote tobacco waste recycling in a smallholder food-cash crop production system, nutrient uptake, dry biomass yield and taste of oilseed rape (Brassica napus L.) and soil chemical properties were determined on a sandy loam soil under field conditions. The experiment was a randomised complete block design with three blocks and eight treatments, namely, control (no amendment), mineral fertiliser (121, 30.8, 24.6 kg/ha N, P and K, respectively), uncomposted tobacco leaf scrap (TSC) and compost of TSC and cattle manure (TSC-CM) at 5, 20 and 40 t/ha. N, P and K uptake and dry biomass yield of oilseed rape were higher (p<0.05) than control with 40 t/ha TSC-CM and mineral fertiliser application at 3 weeks after transplanting (WAT), while significant improvements with TSC were observed from 5 WAT. Mineral N, extractable P and exchangeable K were higher than control with TSC-CM at 20 t/ha and 40 t/ha at 3 WAT, and higher with TSC at 9 WAT. Soil organic carbon was more improved with TSC application than TSC-CM at 9 WAT. Organoleptic testing revealed an intensely bitter taste in oilseed rape with mineral fertiliser, 20 t/ha and 40 t/ha TSC at 3 WAT, although it diminished with time. A trade-off of nutrient uptake, yield, taste of oilseed rape and soil properties improvement is attainable with application of TSC-CM at 40 t/ha, while if composting is not feasible, TSC application at 20 t/ha is a viable alternative. Thus, judicious utilisation of tobacco waste offers a viable solution to the problem of low soil fertility on sandy soils and can reduce the need for mineral fertiliser use, while promising sustainable soil management.

GLUCOSINOLATE CONTENT OF DEVELOPING RAPESEED (Brassica napus L. ’Midas’) SEEDLINGS

1988 ◽  
Vol 68 (2) ◽  
pp. 367-380 ◽  
Author(s):  
D. I. McGREGOR
Keyword(s):  
Brassica Napus ◽  
Seedling Development ◽  
Glucosinolate Content ◽  
Brassica Napus L ◽  
Indole Glucosinolates ◽  
Indole Glucosinolate ◽  
The Individual ◽  
Different Parts

The content of aliphatic, aromatic and indole glucosinolates were measured in the roots, hypocotyl, cotyledons and leaves of the high glucosinolate Brassica napus cultivar Midas over the first 10–14 d after seeding. For seedlings grown in light from emergence, glucosinolate content declined slightly then increased. Increase in the indole glucosinolate content of the shoot (hypocotyl and cotyledons) was caused by an increase in 3-indolylmethyl glucosinolate. When seedlings were confined to darkness for either 6 or 10 d after seeding, 3-indolylmethyl glucosinolate did not increase. The content of 4-hydroxy-3-indolylmethyl the dominant glucosinolate in the seed, declined in both light and dark grown seedlings. The individual glucosinolates in different parts of the seedling appeared to vary independently and to be related to development of specific organs or tissues. The complexity and relative rapidity with which amounts of the individual glucosinolates changed suggests the existence of an intricate metabolic control.Key words: Rapeseed, Brassica napus L., Cruciferae, glucosinolate, seedling development

THE EFFECT OF SULPHUR ON MANGANESE AND COPPER NUTRITION OF CANOLA

1989 ◽  
Vol 69 (1) ◽  
pp. 119-125 ◽  
Author(s):  
R. E. KARAMANOS ◽  
N. HODGE ◽  
J. W. B. STEWART
Keyword(s):  
Brassica Napus ◽  
Key Words ◽  
Organic Soil ◽  
Application Rate ◽  
Antagonistic Effect ◽  
Growth Chamber ◽  
Brassica Napus L ◽  
Chamber Experiment ◽  
Cu Deficiency ◽  
Cu Nutrition

A growth chamber experiment was conducted to assess the Mn and Cu nutrition of canola (Brassica napus L. 'Westar') and whether S nutrition has an impact on the Mn and Cu nutrition of this crop. Three rates of Mn (0, 25, and 50 mg kg−1), three of Cu (0, 5, and 10 mg kg−1) and three rates of S (10, 20, and 30 mg kg−1) were applied in all combinations to canola grown on an organic soil. High Mn:Cu ratios (> 15) led to Cu deficiency, which, at 10 and 20 mg S kg−1, was alleviated by Cu additions. The Mn-induced Cu deficiency was self-corrected at the 30 mg S kg−1 application rate. This was attributed to the alleviation of a Cu × Mo antagonistic effect through addition of S. Key words: Canola, available soil Mn and Cu, Mn × Cu × S interaction, S × Mo interaction, Cu × Mo interaction

scholarly journals FeSO4/lime mixtures – an alternative to mineral sulfur and lime fertilizer for summer rape

2017 ◽  
Vol 63 (No. 11) ◽  
pp. 525-530
Author(s):  
Steffens Diedrich ◽  
Hoffmann Janina
Keyword(s):  
Brassica Napus ◽  
Hydrated Lime ◽  
Pot Experiment ◽  
P Availability ◽  
Strong Reduction ◽  
Brassica Napus L ◽  
Seed Yields ◽  
S Application ◽  
S Fertilizers

Sulfur (S) is one of six important macronutrients and due to the strong reduction of atmospheric S, it has to be fertilized to cover the S demand of plants – especially of those with a high S demand. In addition to regular S fertilizers, FeSO<sub>4</sub> × 7 H<sub>2</sub>O was tested as a compound for a new S fertilizer. A pot experiment was conducted in order to test if FeSO<sub>4</sub> × 7 H<sub>2</sub>O, a by-product in TiO<sub>2</sub> production from ilmenite (FeTiO<sub>3</sub>), can be used in mixtures with limestone (CaCO<sub>3</sub>) or hydrated lime [Ca(OH)<sub>2</sub>] as an S fertilizer for summer rape (Brassica napus L). The results showed that S fertilization in the form of FeSO<sub>4</sub> × 7 H<sub>2</sub>O/lime mixtures resulted in the same effects on the S and phosphorus (P) availability to summer rape as a gypsum/CaCO<sub>3</sub> mixture. Application of S as FeSO<sub>4</sub> × 7 H<sub>2</sub>O/lime mixtures resulted in the same seed yields of summer rapes as compared to S application as a gypsum/CaCO<sub>3</sub> mixture. These results indicate that FeSO<sub>4</sub> × 7 H<sub>2</sub>O/lime mixtures can be used as a combined mineral S and lime fertilizer.

scholarly journals Chelate-assisted phytoextraction: Effect of EDTA and EDDS on copper uptake by Brassica napus L.

2010 ◽  
Vol 75 (9) ◽  
pp. 1279-1289 ◽  
Author(s):  
Tijana Zeremski-Skoric ◽  
Petar Sekulic ◽  
Ivana Maksimovic ◽  
Srdjan Seremesic ◽  
Jordana Ninkov ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Contaminated Soil ◽  
Maximum Amount ◽  
Copper Uptake ◽  
High Biomass ◽  
Brassica Napus L ◽  
Growth Depression ◽  
High Concentrations ◽  
Cu Uptake ◽  
Assisted Phytoextraction

Chelate-assisted phytoextraction has been proposed as an effective approach to removing heavy metals from contaminated soil through use of high biomass plants. The aim of the present study was to compare the efficiency of the two chelators: EDTA and biodegradable EDDS in enhancing Cu uptake and translocation by Brassica napus L. grown on moderately contaminated soil and treated with increasing concentrations of EDTA or EDDS. Increasing amounts of EDDS caused a serious growth depression of Brassica napus and an increase in shoot metal concentrations. Growth depression limited the actual amount of phytoextracted Cu at high concentrations of EDDS. The maximum amount of extracted Cu was achieved by the application of 8.0 and 4.0+4.0 mmol/kg EDDS. The shoot Cu concentrations after EDTA application were much lower than with EDDS at the same doses. According to this experiment, EDTA does not appear to be an efficient amendment if Cu phytoextraction with Brassica napus is considered but EDDS is.

scholarly journals Characterization of bacterial communities associated with Brassica napus L. growing on a Zn-contaminated soil and their effects on root growth

2016 ◽  
Vol 18 (10) ◽  
pp. 985-993 ◽  
Author(s):  
Blanca Montalbán ◽  
Sarah Croes ◽  
Nele Weyens ◽  
M Carmen Lobo ◽  
Araceli Pérez-Sanz ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Root Growth ◽  
Contaminated Soil ◽  
Bacterial Communities ◽  
Brassica Napus L
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