scholarly journals Effect of different doses and application methods of sodium selenate on selenium status in maize for silage

2018 ◽  
Vol 27 (4) ◽  
Author(s):  
Emir Dzomba ◽  
Mirha Djikic ◽  
Drena Gadzo ◽  
Senada Cengic-Dzomba ◽  
Zdenko Loncaric ◽  
...  
Keyword(s):  
Foliar Application ◽  
Control Treatment ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Application Rates ◽  
Superior Effect ◽  
Maize Plants ◽  
Application Methods ◽  
Second Year ◽  
Fertiliser Application

A two-year field study was conducted to determine the effect of different Se fertiliser application methods and application rates on the selenium content in maize plants. Selenium as sodium selenate was added into soil (10 g and 20 g Se ha-1) or sprayed on maize plants (20 g Se ha-1). Maize plants from control treatment contained 0.018 and 0.020 mg Se kg DM-1 in the first and the second year of the study. Foliar application exhibited superior effect by increasing selenium content in the plants up to 0.343 mg kg DM-1 in the first year, and 0.249 mg kg DM-1 in the second. Soil selenium application was less effective; selenium content in maize plants varied from 0.018 to 0.019 mg kg DM-1 in the first and from 0.018 to 0.145 mg kg DM-1 in the second year, respectively. Strong linear correlation (r=0.71) was found between selenium content in the plants and in grains. Selenium recovery rates were significantly higher in case of foliar treatment compared to soil application.

scholarly journals Selenium Biofortification of Wheat as a Strategy to Improve Human Nutrition

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 144
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska
Keyword(s):  
Spring Wheat ◽  
Foliar Application ◽  
Stem Elongation ◽  
Sodium Selenate ◽  
Control Group ◽  
Selenium Content ◽  
Wheat Grain ◽  
Elongation Phase ◽  
Fertilisation Treatment ◽  
Foliar Fertilisation

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.

scholarly journals Increasing of selenium content and qualitative parameters in tomato (Lycopersicon esculentum Mill.) after its foliar application

10.5219/1097 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 351-358 ◽  
Author(s):  
Alena Andrejiová ◽  
Alžbeta Hegedűsová ◽  
Samuel Adamec ◽  
Ondrej Hegedűs ◽  
Ivana Mezeyová
Keyword(s):  
Vitamin C ◽  
Foliar Application ◽  
Botanical Garden ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Total Carotenoids ◽  
Total Polyphenol ◽  
Tomato Fruits ◽  
Negative Effect ◽  
Positive Effect

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.

scholarly journals Growth and physiology of ornamental sunflower under salinity in function of paclobutrazol application methods

2021 ◽  
Vol 25 (12) ◽  
pp. 853-861
Author(s):  
Rafaela F. B. Guimarães ◽  
Sebastião de O. Maia Júnior ◽  
Robson F. de Lima ◽  
Allesson R. de Souza ◽  
Jailma R. de Andrade ◽  
...  
Keyword(s):  
Salt Stress ◽  
Stomatal Conductance ◽  
Irrigation Water ◽  
Foliar Application ◽  
Photochemical Efficiency ◽  
Control Treatment ◽  
Brackish Waters ◽  
Electrical Conductivities ◽  
Application Methods

ABSTRACT The ornamental sunflower has great importance in the floriculture sector due to the color and vitality of its flowers. However, the production and quality of flowers decrease under salt stress, which can be mitigated with paclobutrazol application. The objective of the present study was to evaluate the effects of different application methods of paclobutrazol in ornamental sunflower ‘Sol Noturno’ irrigated with brackish waters. The experimental design was randomized blocks arranged in a 5 × 3 factorial scheme, corresponding to five electrical conductivities of irrigation water - ECw (0.4; 1.9; 3.4; 4.9, and 6.4 dS m-1) and three paclobutrazol application methods (foliar application, via soil and a control treatment - without paclobutrazol), with four replicates. The increase in salinity of irrigation water reduced gas exchange, photosystem II photochemical efficiency, SPAD index, plant height, and chapter diameter. The paclobutrazol application via soil or foliar increased stomatal conductance and transpiration by 21.09 and 17.80%, respectively, in comparison to plants without application, whereas photosynthesis and instantaneous carboxylation efficiency increased by 28.33 and 31.18% via soil and 14.40 and 16.12% via foliar, respectively. The paclobutrazol application, mainly via soil, favored ‘Sol Noturno’ sunflower plants under salt stress, increasing chlorophyll SPAD index and external chapter diameter, and keeping the number of the petals.

scholarly journals Silicon-based induced resistance in maize against fall armyworm [Spodoptera frugiperda (Lepidoptera: Noctuidae)]

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259749
Author(s):  
Inzamam Ul Haq ◽  
Aroosa Khurshid ◽  
Rehan Inayat ◽  
Zhang Kexin ◽  
Liu Changzhong ◽  
...  
Keyword(s):  
Lipase Activity ◽  
Spodoptera Frugiperda ◽  
Foliar Application ◽  
Abiotic Factors ◽  
Fall Armyworm ◽  
Dry Weight ◽  
The United States ◽  
Stem Length ◽  
Control Treatment ◽  
Maize Plants

The fall armyworm (Spodoptera frugiperda) is a major economic pest in the United States and has recently become a significant concern in African and Asian countries. Due to its increased resistance to current management strategies, including pesticides and transgenic corn, alternative management techniques have become more necessary. Currently, silicon (Si) is being used in many pest control systems due to its ability to increase plant resistance to biotic and abiotic factors and promote plant growth. The current experiments were carried out at the College of Plant Protection, Gansu Agricultural University, Lanzhou, China, to test the effect of Si on lifetable parameters and lipase activity of fall armyworm and vegetative and physiological parameters of maize plants. Two sources of Si (silicon dioxide: SiO2 and potassium silicate: K2SiO3) were applied on maize plants with two application methods (foliar application and soil drenching). The experiment results revealed that foliar applications of SiO2 and K2SiO3 significantly (P≤0.05) increased mortality percentage and developmental period and decreased larval and pupal biomass of fall armyworm. Similarly, both Si sources significantly (P≤0.05) reduced lipase activity of larvae, and fecundity of adults, whereas prolonged longevity of adults. Among plant parameters, a significant increase in fresh and dry weight of shoot, stem length, chlorophyll content, and antioxidant activity was observed with foliar applications of Si. Root fresh and dry weight was significantly (P ≤ 0.05) higher in plants treated with soil drenching of SiO2 and K2SiO3. Moreover, SiO2 performed better for all parameters as compared to K2SiO3 and control treatment. The study conclusively demonstrated a significant negative effect on various biological parameters of fall armyworm when plants were treated with Si, so it can be a promising strategy to control this pest.

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
Keyword(s):  
Spring Wheat ◽  
Foliar Application ◽  
Stem Elongation ◽  
Agricultural Practices ◽  
Triticum Aestivum L ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Human Diet ◽  
Soil Fertilization ◽  
Soil Application

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.

scholarly journals EFFECT OF FOLIAR APPLICATION OF SELENIUM ON ITS UPTAKE AND YIELDS IN BASILS

AGROFOR ◽  
2019 ◽  
Vol 4 (3) ◽  
Author(s):  
Ivana MEZEYOVÁ ◽  
Alžbeta HEGEDŰSOVÁ ◽  
Ondrej HEGEDŰS ◽  
Ján FARKAŠ ◽  
Miroslav ŠLOSÁR ◽  
...  
Keyword(s):  
Foliar Application ◽  
Morphological Variability ◽  
Essential Element ◽  
Normal Growth ◽  
Small Scale ◽  
Sodium Selenate ◽  
Vegetable Production ◽  
Selenium Content ◽  
Ocimum Tenuiflorum ◽  
Dark Green

Basil is one of the most used spices in Slovakia. Selenium is an essential element for normal growth and development of the organism and because Slovak soils are poor in this element, the various ways of this antioxidant increasing in the food chain has being sought. The aim of the work was to evaluate influence of selenium biofortification on selenium content of Ocimum basilicum - variety ´Dark Green´, which was, in conditions of the Slovakia, well known and wide spread grown, as well as on the opal basils (´Purple Ruffles´ and ´Red Rubin´) and on Ocimum tenuiflorum – Tulsi. The influence of fortification on the yields of basils was also tested. The selenium content and the yields of selected basils were compared in dependence on the selenium fertilization, two terms of harvest and morphological variability. Small-scale field experiment was carried out at the Department of Vegetable Production, Slovak University of Agriculture in Nitra, 2016. Selenium was applied foliar at a dose 50 g Se / ha in the form of sodium selenate. In two harvests the values of selenium built in plants and the economically interesting quantitative data – the yields per ha were evaluated. Statistical methods were used for statistical evaluation by the help of Statgraphics Centurion XVII (StatPoint Inc. USA), with multifactor analysis of variance (ANOVA) and LSD test. Foliar application of selenium had a positive effect of selenium content in case of all tested basils. The yields were also positively affected where values of fresh mass in selenised variants ranged from 1.43 (´Purple Ruffles´) to 13.71 t/ha (Tulsi).

Effect of Urea and Nano-Nitrogen Fertigation and Foliar Application of Nano-Boron and Molybdenum on some Growth and Yield Parameters of Potato

2020 ◽  
Vol 10 (1) ◽  
pp. 253-263
Author(s):  
Hayyawi W.A. Al-juthery ◽  
Estabraq Hilal Obaid Al-Maamouri
Keyword(s):  
Foliar Application ◽  
Growth Traits ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Acid Yield ◽  
Biological Yield ◽  
Starch Yield ◽  
Private Farm

Investigating the effect of urea and nano-nitrogen fertigation and foliar application of nano B and Mo on growth and yield of potato Solanum tuberosum L. [Rivera-A]. The study was conducted in a private farm located in the Al-Taleah area - Babylon governorate. The experiment consisted of (12) treatments consisting of separated fertigation of nano nitrogen (25% N) and urea (46% N), single treatments of leaf spraying of nano Mo (5%), Nano B (9%), nano-binary combinations (Mo+B) and (U+ Nano Mo), (U+Nano B), Nano (N+Mo), Nano (N+B), and tricombination treatments of (U+Mo+B), Nano (N+Mo+B) additional to the control treatment. Randomize Complete Block Design (RCBD) and one way simple experiment with three replicates. Fertilizers were applied at levels of 40 liters h-1 of Nano-N fertilizer (25% N) and 300 kg h-1 urea fertilizer (46% N). They were sprayed early in the morning after (40) days after planting four times. Two weeks is the period between an application and another according to the recommendation of (1) kg  h-1 nano-fertilizer of (B) and (500) g h-1 of  Mo. Fertilizers were injected and sprayed at (10, 20, 30 and 40)% of the total amount of the fertilizer were applied as the first, second, third and fourth applications, respectively. Some growth traits were tested including the chlorophyll content in the leaves, the total dry vegetative yild, the soft tubers yield, and the biological yield, proteins and ascorbic acid yield compared to the control (spray water only). The results of the Duncan test showed a significant increase in most of the studied traits of nano-tricombination (N+Mo+B) in the fresh tubers yield,  dry vegetative yield  , the biological yield, starch yield ,the total protein and ascorbic yield (37.53, 1.799, 8.138,4.152 , 481.3and 653.8 meg ha-1) respectively .compare to control (21.58 , 0.890, 4.463  ,2.323 , 366.1 and 215.5 meg ha-1) respectively.

Effect of algae Ecklonia maxima extract (Kelpak SL) on yields of common wheat, durum wheat and spelt wheat

2019 ◽  
Vol 74 (1) ◽  
pp. 5-14
Author(s):  
GRZEGORZ SZUMIŁO ◽  
LESZEK RACHOŃ ◽  
BARBARA KROCHMAL-MARCZAK
Keyword(s):  
Triticum Aestivum ◽  
Durum Wheat ◽  
Common Wheat ◽  
Yield Components ◽  
Grain Quality ◽  
Foliar Application ◽  
Control Treatment ◽  
Favourable Effect ◽  
Ecklonia Maxima ◽  
Spelt Wheat

The 3-year experiment was concerned with the response of spring forms of common wheat (Triticum aestivum L. subsp. aestivum), durum wheat (Triticum durum Desf.) and spelt wheat (Triticum aestivum subsp. spelta L. em. Thell.) to the foliar application of a plant growth stimulant (extract from marine algae Ecklonia maxima), with the commercial name of Kelpak SL (GS), as compared to control treatment (C). The following parameters were analysed: yield of grain, yield components (number of ears, weight of 1000 kernels, number and weight of kernels per ear) and physical indicators of grain quality (test weight, uniformity and vitreosity of grain). The study showed that the level of yielding and the yield components were related primarily with the wheat genotype, but they depended also on the agro-climatic conditions and on the algae extract and control experimental treatments. The application of algae extract, compared to the control, caused a significant increase in the yields of the spring wheat species under study, on average by 7.0%. Canopy spraying with algae extract had a favourable effect on the number of ears, on he number and weight of kernels per ear, but it had no effect on the weight of 1000 kernels. The grain quality of durum wheat, spelt wheat and common wheat was affected more strongly by the weather conditions in the successive years of the study and by the genotype than by the foliar application of algae extract. The spelt genotypes were characterised by lower yields and lower grain quality than common wheat and the durum wheat genotypes.

scholarly journals Effects of two wood-based biochars on the fate of added fertilizer nitrogen—a 15N tracing study

2021 ◽  
Author(s):  
Subin Kalu ◽  
Gboyega Nathaniel Oyekoya ◽  
Per Ambus ◽  
Priit Tammeorg ◽  
Asko Simojoki ◽  
...  
Keyword(s):  
Plant Uptake ◽  
Plant Biomass ◽  
Application Rate ◽  
Control Treatment ◽  
Organic N ◽  
N Leaching ◽  
Soil N ◽  
Mineral N ◽  
Total N ◽  
Application Rates

AbstractA 15N tracing pot experiment was conducted using two types of wood-based biochars: a regular biochar and a Kon-Tiki-produced nutrient-enriched biochar, at two application rates (1% and 5% (w/w)), in addition to a fertilizer only and a control treatment. Ryegrass was sown in pots, all of which except controls received 15N-labelled fertilizer as either 15NH4NO3 or NH415NO3. We quantified the effect of biochar application on soil N2O emissions, as well as the fate of fertilizer-derived ammonium (NH4+) and nitrate (NO3−) in terms of their leaching from the soil, uptake into plant biomass, and recovery in the soil. We found that application of biochars reduced soil mineral N leaching and N2O emissions. Similarly, the higher biochar application rate of 5% significantly increased aboveground ryegrass biomass yield. However, no differences in N2O emissions and ryegrass biomass yields were observed between regular and nutrient-enriched biochar treatments, although mineral N leaching tended to be lower in the nutrient-enriched biochar treatment than in the regular biochar treatment. The 15N analysis revealed that biochar application increased the plant uptake of added nitrate, but reduced the plant uptake of added ammonium compared to the fertilizer only treatment. Thus, the uptake of total N derived from added NH4NO3 fertilizer was not affected by the biochar addition, and cannot explain the increase in plant biomass in biochar treatments. Instead, the increased plant biomass at the higher biochar application rate was attributed to the enhanced uptake of N derived from soil. This suggests that the interactions between biochar and native soil organic N may be important determinants of the availability of soil N to plant growth.

Sign in / Sign up

Export Citation Format

Share Document