scholarly journals Agrotechnical Biofortification as a Method to Increase Selenium Content in Spring Wheat

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 541
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska

Selenium (Se) is a micronutrient that is insufficiently present in the human diet. Increasing its content in food through appropriately matched agricultural practices may contribute to reducing Se deficit in humans. The study covered the effect of grain, soil, as well as grain and soil fertilization with selenium combined with foliar application at different stages of spring wheat (Triticum aestivum L.) development. The fertilization involved the application of sodium selenate. Fertilization with selenium had no significant effect on the grain yield. Grain application, soil application, and grain and soil application combined with foliar application at particular development stages of the plant significantly contributed to an increase in selenium content in grain. The study showed that the accumulation of selenium in spring wheat depends on the type of fertilization and term of its application. The best method of introducing selenium into the plant is grain and soil fertilization combined with foliar application at the stage of tillering and stem elongation (G + S+F1-2) for which the highest selenium content was obtained (0.696 mg·kg−1 Se). The applied biofortification methods contributed to the increase in selenium in the grain of spring wheat.

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 144
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska

This paper analyses the effects of soil and foliar fertilization with sodium selenate (VI) on the selenium content in spring wheat grain. The research was carried out at the Departmental Experimental Station of the Institute of Agriculture WULS in Skierniewice in 2018 and 2019. The dose of selenium used was 5.00 g Se·ha−1 in various development stages of spring wheat. The results showed that selenium fertilisation did not affect the size of the grain yield, but both soil and foliar fertilisation significantly increased the content of selenium in wheat grain compared to the control group. The highest Se content was obtained with the method of soil fertilisation combined with the foliar application with a total dose of 10.00 g·ha-1 Se in the stem elongation phase (S + F2), and in the tillering and stem elongation phase (S + F1 + F2), which resulted in the values of 0.615 and 0.719 mg·kg−1 Se in grain, respectively. On this basis, it was concluded that the best time to carry out foliar fertilisation treatment is in the stem elongation phase (BBCH 30–39). The results show that the greatest increase in selenium content in the grain is achieved with soil and foliar fertilisation combined.


2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc


1990 ◽  
Vol 38 (3) ◽  
pp. 695-698 ◽  
Author(s):  
Paivi Ekholm ◽  
Maija Ylinen ◽  
Pekka Koivistoinen ◽  
Pertti Varo

Author(s):  
Babulal Choudhary ◽  
P. K. Sharma ◽  
Rameshwr Lal Mandeewal ◽  
B. L. Verma ◽  
Mahipal Dudwal

A field study was conducted during Rabi season of 2019-20 on “Response of Iron and Zinc on Yield Attributes, Yield and Economics of Wheat (Triticum aestivum L.)” at Research Farm of Vivekananda Global University, Jaipur. The treatments comprised different combinations of recommended dose of fertilizer and micronutrients. Results showed that the yield attributes and yield net returns and benefit cost ratio of wheat was significantly increased due to application of different treatment combinations of zinc and iron. The maximum number of effective tillers m-2, grains spike-1, spike length, grain yield (4887 kg ha-1), straw yield (6718 kg ha-1) and biological yield (11606 kg ha-1) of wheat was obtained with RDF + soil application of ZnSO4 @ 25 kg ha-1 + FeSO4 @ 50 kg ha-1 (T10). Application of RDF + soil application of ZnSO4 @ 25 kg ha-1 + foliar application of ZnSO4 (0.5%) at tillering stage (T6) gave highest net returns ( 65168 ha-1) and B: C ratio (2.83).


10.5219/1097 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 351-358 ◽  
Author(s):  
Alena Andrejiová ◽  
Alžbeta Hegedűsová ◽  
Samuel Adamec ◽  
Ondrej Hegedűs ◽  
Ivana Mezeyová

The effect of genotype and selenium foliar biofortification in the form of an aqueous solution of sodium selenate on the content of total carotenoids, vitamin C, total polyphenols and selenium content in the tomato fruits was studied.  Field experiment was held in the Botanical garden of the Slovak University of Agriculture in 2016. Seven determinant varieties of tomato in the two variants were observed. The results of experiments show that treatment of plants with the dose of Se concentration (150 g Se.ha-1) at the flowering stage significantly increased the total Se content in the in tomato fruits. Foliar application of selenium had a positive effect on the increase of total polyphenol. The influence of Se biofortification on the content of vitamin C and carotenoids was not detected. Selenium foliar fertilization in dosage 150 g.ha-1 is suitable way of tomato fruits enriching in polyphenols, without negative effect on other antioxidants content.


2009 ◽  
Vol 55 (No. 2) ◽  
pp. 80-84 ◽  
Author(s):  
L. Ducsay ◽  
O. Ložek ◽  
L. Varga L

The influence of application of increasing doses of selenium (0.05 mg, 0.10 mg and 0.20 mg/kg) into soil in pot experiments, with NPK fertilization of spring wheat (<i>Triticum aestivum</i> L., variety Banti), on the biomass yield (grain, straw, roots) and on selenium accumulation was observed. Selenium in the form of sodium selenite (Na<sub>2</sub>SeO<sub>3</sub>•5H<sub>2</sub>O) and the NPK nutrients in the form of LAD-27, Ca(H<sub>2</sub>PO<sub>4</sub>)<sub>2</sub> and KCl were applied. The average two-year results showed the expected indifferent effect of increasing doses of selenium on the yield of wheat grain, straw and roots. The differentiated doses of selenium into soil caused a significant increase of selenium content in dry matter (dm) of grain, straw and roots of wheat. The highest content of selenium (0.732 mg/kg in grain, 0.227 mg/kg in straw and 1.375 mg/kg in roots dm) was determined in the variant where 0.2 mg Se/kg of soil was applied. When applying the lowest dose of selenium (0.05 mg Se/kg of soil) the content of selenium was 0.155 mg Se/kg in grain. The selenium content in individual analysed parts of wheat was increasing in the following order: straw – grain – roots.


Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2100
Author(s):  
Aleksandra Radawiec ◽  
Beata Rutkowska ◽  
Justina Anna Tidaback ◽  
Dariusz Gozdowski ◽  
Tomasz Knapowski ◽  
...  

Selenium is a micronutrient that is important for the proper functioning of the body. The research presented in this paper investigated the impact of various methods of selenium fertilization at various stages of plant growth on its content in grain and the quality properties of spring wheat (Triticum aestivum L.). Selenium fertilization did not affect the grain yield; however, it increased the selenium content in the grain. The research results showed that the accumulation of Se depends not only on the dose of the fertilizer but also on the stage of plant growth when the element is introduced. The most effective method of fertilization proved to be seed treatment and soil application combined with the foliar application at the tillering and stem elongation stages (G + S + F1-2), as well as at the stem elongation stage alone (G + S + F2). In terms of quality characteristics, the impact of selenium fertilization was observed only in the case of the falling number and the total protein content; all the parameters allowed for the grain to be classified as suitable for bread-making. Selenium fertilization can be considered as a safe way of increasing the Se content in spring wheat, which may contribute to an increase in the technological quality of the grain and its nutritional value.


2013 ◽  
Vol 93 (2) ◽  
pp. 219-222 ◽  
Author(s):  
Xianglan Li ◽  
Noura Ziadi ◽  
Gilles Bélanger ◽  
Wenping Yuan ◽  
Shunlin Liang ◽  
...  

Li, X., Ziadi, N., Bélanger, G., Yuan, W., Liang, S., Xu, H. and Cai, Z. 2013. Wheat grain Cd concentration and uptake as affected by timing of fertilizer N application. Can. J. Soil Sci. 93: 219–222. The effect of a single N application (120 kg ha−1) at seeding on wheat (Triticum aestivum L.) grain Cd concentration and uptake was compared with an equally split N application (seeding and the stem elongation stage) in a field experiment at 12 site-years. Averaged across all site-years, the single N application tended to reduce wheat grain Cd concentration (58 vs. 68 µg kg−1DM) and uptake (151 vs. 191 mg ha−1) compared with the split application. The Cd concentrations, however, never exceeded the maximum acceptable level for Cd in wheat grain. A single N application at seeding might reduce the risk of high grain Cd concentration in spring wheat.


2003 ◽  
Vol 83 (2) ◽  
pp. 213-221 ◽  
Author(s):  
R. E. Karamanos ◽  
T. B. Goh ◽  
J. T. Harapiak

Criteria for assessment of the Cu status of prairie soils were developed in the early 1980s and are currently in use with some modifications. Although there appears to be a reasonable agreement on the soil critical value of 0.4 mg kg-1 soil based on DTPA-extractable Cu, a marginal range that extends between 0.4 and 1.2 mg DTPA-Cu kg-1 soil is used to generate fertilizer recommendations. The objective of this study was to verify the existing soil critical value and identify the frequency of agronomic as well as economic response of spring wheat to Cu fertilization on soils with levels both below and above the critical value. We carried out a large number (52) of trials with spring wheat (Triticum aestivum L.) between 1991 and 2000 in all three Prairie Provinces and compiled a large number of spring wheat experiments conducted in western Canada (63) by a number of researchers. Fifty-nine trials carried out on soils containing marginal and sufficient Cu levels were evaluated and were compared to 56 experiments on soils containing deficient levels. A number of methods of placement and products were compared. Agronomic responses were obtained in 41 of the 115 experiments and only by broadcasting either 3 to 5.5 kg Cu ha-1 as CuSO4·5H2O or 0.5 to 2 kg Cu ha-1 as Cu-sulphonate and incorporating the product or by foliar application of 0.22 kg Cu ha-1. Calibration of the DTPA-extractable Cu test using a Mitscherlich type of function verified the soil critical value of 0.4 mg Cu kg-1 soil. Statistically significant grain yield responses were obtained in 87, 16 and 0% of trials carried out on soils containing <0.4, 0.4 to 0.8 and >0.8 mg DTPA-extractable Cu kg-1 soil. Economic responses, defined as those where Cu application yielded a 2:1 return on the cost of fertilizer in the year of application, varied depending on the price of wheat and ranged between 19 to 45% in deficient soils for a price range of $100 to $200 t-1 of wheat grain; economic responses on marginal and sufficient soils occurred in 6% and none of the cases, respectively. Hence, fertilization of soils with DTPA-extractable Cu levels >0.4 mg kg-1 is associated with very high risk. Key words: DTPA-extractable, calibration, soil critical value, deficient, marginal, agronomic, economic


2021 ◽  
Vol 10 (4) ◽  
pp. e42710414234
Author(s):  
Amanda Magalhães Bueno ◽  
Rilner Alves Flores ◽  
Aline Franciel de Andrade ◽  
Marco Aurelio Pessoa de Sousa ◽  
Nícolas Gomes Pedreira ◽  
...  

Conducting a field study to investigate the effects of foliar and soil fertilization with copper on the nutritional and physiological parameters and grain yield of common bean. The experimental design was a randomized block, in a 2 x 5 factorial scheme. The first factor was the site of application of copper fertilization. The second factor was copper doses: 0, 1, 2, 3, and 4 kg ha-1 (6 replicates). The following were evaluated: leaf nitrogen and copper contents, relative chlorophyll index (RCI), gas exchange, photochemical efficiency of photosystem II, and grain yield. The data were subjected to analysis of variance and F test (p-value < 0.05), using the Scott & Knott for qualitative data and polynomial regression for quantitative data. Leaf Cu content was higher with soil application (4% and 28%), both at 24 and 45 DAE, respectively. Net photosynthesis reached a maximum index of 18.77 µmol m-2 s-1 with foliar Cu fertilization at the dose of 4 kg ha-1. The application of 2.0 kg ha-1 Cu was the one that led to the highest grain yields; however, soil application stood out with a yield about 12% higher of the foliar. Soil fertilization proved to be more efficient in terms of Cu absorption and RCI rates, improving grain yield (12%) in relation to foliar, especially at the dose of 2 kg ha-1. The dose of 2 kg Cu ha-1 provided the best differential profit, reaching US$ 581.96 ha-1 and US$ 503.01 ha-1 for soil and foliar application, respectively.


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