Influence of Formulation on the Cuticular Penetration and on Spray Deposit Properties of Manganese and Zinc Foliar Fertilizers

Alexander, A.; Hunsche, Maurício

doi:10.3390/agronomy6030039

Cited by 19 publications

(18 citation statements)

References 15 publications

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“…These findings indicate that nano-ZnO was likely absorbed in the same form as ZnSO4 -soluble Zn ions rather than as intact ZnO particles. This is in agreement with previous studies, including a similar studies of Li et al (2018) in soybean and Alexander et al (2016) found that absorption of insoluble foliar applied nutrients was limited (even for nano-scale particles). Therefore, solubility is an important factor to consider when designing foliar fertilisers.…”

Section: Comparing the Absorption Of Nano-zno And Znso4supporting

confidence: 94%

Absorption and translocation of Zn foliar fertilisers

Cui¹

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Crop Zn deficiency is associated with low Zn availability in soils and is a widespread problem, also resulting in human Zn deficiency. Foliar Zn fertilisation has been shown to be an efficient approach for overcoming this problem. However, the mechanisms by which Zn moves across the leaf surface (penetration across the cuticle and epidermal cells and into the underlying tissues) and is subsequently translocated remain unclear, with this being the main focus of the present research. Specifically, using ZnSO4 and nano-ZnO, the roles of leaf cuticle, trichomes, and stomata in foliar Zn absorption were examined, with the distribution and the speciation of the absorbed Zn in the leaves determined. In addition, the influence of plant Zn status on foliar Zn absorption was also examined. The first experiment aimed to obtain a general understanding of the effects of leaf properties on the foliar absorption of Zn. Methyl jasmonate (MeJA) (0, 0.1, 0.5, 1, and 2.5 mM) was applied to leaves of soybean (Glycine max), sunflower (Helianthus annuus), and tomato (Solanum lycopersicum) to alter leaf properties. It was found for all three plant species that treating of MeJA caused substantial increases (1.3-3.5-times higher) in leaf trichome density, and the hydrophobicity of the adaxial leaf surface. The changes in stomatal density and leaf cuticle thickness varied with plant species and MeJA concentration. Based upon these results, the second experiment used 0 (control) and 1 mM MeJA treatments to examine the effects of changes in leaf properties on the absorption of foliar-applied Zn, Mn, and Fe, using synchrotron-based X-ray fluorescence microscopy (µ-XRF) to examine the distribution of elements in situ within hydrated leaves. Interestingly, foliar absorption of Zn, Mn, and Fe increased up to 3-to 5-fold in sunflower leaves treated with 1 mM MeJA, but decreased by 0.5-to 0.9-fold in leaves of tomato treated with 1 mM MeJA. It was found that these changes were related to the thickness of the cuticle and epidermal cell wall, suggesting that the cuticle is important for absorption of foliar-applied nutrients. However, subsequent translocation of the absorbed Zn, Mn, and Fe within the leaf tissues was limited (moving < 1.3 mm in 6 h) irrespective of the plant species and treatment. Of the three nutrients, Zn was translocated a greater distance within the vein than in the interveinal tissues (being translocated ca. twofold further). The third experiment gave specific consideration to the role of trichomes in foliar Zn absorption. Using µ-XRF for the in situ analyses of nutrient distribution in leaves of soybean and tomato, it was found that upon the foliar-application of ZnSO4, Zn accumulated in some spectroscopy (XAS) analyses showed that the Zn in the leaves following foliar application was mostly present as Zn phytate (37-53%) in Zn sufficient leaves, but as Zn phosphate (about 55%) in Zn deficient leaves. Across several of the experiments described above, the foliar absorption of ZnSO4 and nano-ZnO were compared. It was found tha...

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Section: Comparing the Absorption Of Nano-zno And Znso4supporting

confidence: 94%

Absorption and translocation of Zn foliar fertilisers

Cui¹

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“…In this study, the effect of nano( Fe, Cu, Zn and Mn) was determined by single and combination on the growth and yield of Jerusalem artichoke To our knowledge this is the first report showing that the spraying of nano-fertilizers of micro-elements has affected the improvement of the growth and yield of Jerusalem artichoke and the same response was obtained in other types of crops that have different requirements for micro-nutrients. There are still many unanswered questions about how the effects of micronutrients are affected by the increase in the yield and its components, and( Fe, Cu, Zn and Mn) content in leaves and tubers of the Jerusalem artichoke, One possibility is that micronutrient foliar QJAS Al-Qadisiyah Journal For Agriculture Sciences ISSN: 2618-1479 Volume 9, No.1 ,(2019), PP 156-164 http://qu.edu.iq/jouagr/index.php/QJAS/index Page 162 | http://qu.edu.iq/jouagr/index.php/QJAS/index nutrition can affect the accumulation of dry matter in arial parts and increase the percentage of dry matter in tubers [18], [27].…”

Section: Resultsmentioning

confidence: 99%

Fertilizer Use Efficiency of nano fertilizers of micronutrients foliar application on Jerusalem artichoke

Al-Juthery¹,

saadoun²

2019

QJAS

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A field experiment was carried out in one of the fields of plot 158 district 41 Husseiniya, township of Taliaa, Babylon Governorate, to study fertilizer use efficiency of nano fertilizers micronutrients foliar application on Jerusalem artichoke (Helianthus tuberosus L.).The experiment included 17 treatments of spraying the nanofertilizes micronutrients of nano iron 13% Fe ,nano zinc 20% Zn, nano copper 15% Cu and nano manganese 18% Mn, single spray, dual, triple and quadruple combinations, as well as a quadratic combination of a traditional source as well as the treatment of water-only control. In nutrients content in arial parts and tubers, nutrients uptake, total uptake ,FUE,MNUE. RCBD design with three replicates, and the solutions were sprayed early in the morning after 60 days of planting and at 25, 50, 75 and 100 g fertilizer 100 L-1 Water for to spray the first, second, third and fourth respectively, and according to the recommendation by 1 kg Naon fertilizers h-1, and another 400 liters of spray solution h-1.The results of the duncan test showed a probability level of 0.05 The superiority of the single spray treatments followed by the treatment of nano (Zn+Cu+Fe+Mn) in micronutrients content of arial parts and tubers of zinc, copper, iron, manganese and total uptake, While achieved the nutrient use efficiency of nano-zinc, nanocopper, nano-iron and nano-manganese (93.10, 85.00, 99.00 and 85.50%) sequentially. For individual spray treatments and (91.60, 81.30, 91.85, and 83.40%) sequentially for the treatment of nano spray common quartet (Zn + Cu + Fe + Mn).

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“…During the plant phonological stages vulnerable to drought effects, moisture stress occurs in various forms such as; pre-flowering water deficit (regions of South America); grain-filling (post-anthesis) water deficit (Mediterranean regions) and continuous water deficit [14]. Foliar fertilization has progressed over time, following many decades of research and development, an indispensable tool for the sustainable agricultural approach and is of supreme commercial importance internationally [15,16]. In addition to achieving more practical experience regarding the optimum stages of foliar fertilizer application, little is known about the possibilities of improving foliar nutrient penetration into leaf or fruit tissues [16].…”

Section: Introductionmentioning

confidence: 99%

“…Foliar fertilization has progressed over time, following many decades of research and development, an indispensable tool for the sustainable agricultural approach and is of supreme commercial importance internationally [15,16]. In addition to achieving more practical experience regarding the optimum stages of foliar fertilizer application, little is known about the possibilities of improving foliar nutrient penetration into leaf or fruit tissues [16]. In many orchards, macronutrients and especially micronutrients are leaf-applied routinely to prevent the deficiencies of these essential elements [17].…”

Section: Introductionmentioning

confidence: 99%

Impact of foliar fertilization on apple and pear trees in reconciling productivity and alleviation of environmental concerns under arid conditions

Zargar

Tumanyan

Иваненко

et al. 2019

Communicative & Integrative Biology

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Drought and heat stress are significant factors limiting fruit crop yield in arid conditions. Foliar fertilization is a common practice of supplying fruit crop production with mineral nutrients, especially under limited soil nutrient availability conditions. To evaluate potential effectiveness of the foliar application of macro-, micronutrient and growth regulators on dynamics of physiological parameters of the pear and apple cultivars under abiotic stresses, three–year experiments were carried out under arid conditions at the Russian Research Institute of Arid Agriculture during the 2015–2017 growing seasons. It has been revealed that foliar nutrition reduces the negative influence of heat stress, stabilizes the functional state of plants, thereby enhancing resistance to drought. During the most severe drought periods of vegetation, under the influence of foliar nutrition, there was a significant increase in the total water content (TWC), relative leaf turgidity (RLT) and water retention capacity (WRC); and also index of leaf water deficiency (LWD) was improved as compared to the non-treated control. All foliar treatments involving the macro-, micronutrient and growth regulators significantly enhanced fruit crop yield of pear and apple varieties over the control, yield enhancement was obtained 2.7–22.0 t ha −1 for the Talgar beauty (pear variety), 2.2–19.3 t ha −1 for the Renet Symirenko (apple variety), and 1.6–10.5 t ha −1 for the Starkrimson (apple variety). The most effective treatments for water consumption coefficient (WCC) were plantafol and speedphol. The results suggest that foliar plantafol and speedfol could be used as part of an efficient, sustainable fertilizer program for apple and pear trees for maintaining or improving fruit quality, productivity, and avoiding negative efficacy of abiotic stresses.

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Influence of Formulation on the Cuticular Penetration and on Spray Deposit Properties of Manganese and Zinc Foliar Fertilizers

Cited by 19 publications

References 15 publications

Absorption and translocation of Zn foliar fertilisers

Absorption and translocation of Zn foliar fertilisers

Fertilizer Use Efficiency of nano fertilizers of micronutrients foliar application on Jerusalem artichoke

Impact of foliar fertilization on apple and pear trees in reconciling productivity and alleviation of environmental concerns under arid conditions

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