Zinc in soils, water and food crops

Noulas, Christos; Tziouvalekas, Miltiadis; Karyotis, Theodore

doi:10.1016/j.jtemb.2018.02.009

Cited by 347 publications

(157 citation statements)

References 42 publications

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“…It is also reported that 64 mg/kg is the mean value for soil Zn contents (reviewed in Noulas et al., ). However, finding the threshold level for Zn contents in soils to be decaled as Zn deficit soils is difficult, due to variable total Zn contents, variable Zn bioavailability in soils and proportion of other trace elements which are depending on several environmental factors (reviewed in Noulas et al., ). Therefore, different assays are used to determine the threshold level of soil Zn deficiency.…”

Section: Strategies For Zn Biofortification Of Maizementioning

confidence: 97%

“…Zn contents are variable in different soils. In agricultural soils, Zn is not uniformly distributed and its contents may range from 10 to 300 mg/kg (reviewed in Noulas, Tziouvalekas, & Karyotis, ). Overall mean of the Zn contents in soils is around 5–55 mg/kg.…”

Section: Strategies For Zn Biofortification Of Maizementioning

confidence: 99%

“…These Zn fertilization practices have different outcomes for various modes of applications and cereal crops. Noulas et al, 2018). Therefore, different assays are used to determine the threshold level of soil Zn deficiency.…”

Section: Agronomic Practicesmentioning

confidence: 99%

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Zinc biofortification of maize (Zea mays L.): Status and challenges

Maqbool¹,

Beshir²

2018

Plant Breeding

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Zn deficiency is one of the leading health problems in children and women of developing countries. Different interventions could be used to overcome malnutrition, but biofortification is most impactful, convenient, sustainable and acceptable intervention. Maize is one of the major crops grown and consumed in the regions with prevalent Zn malnutrition; therefore, this is suitable target for Zn biofortification. Zn biofortification of maize could be achieved through agronomic and genetic approaches. Discussion of agronomic approaches with genetic approaches is prerequisite because soils in developing countries are deficit of Zn and availability of Zn in soils is mandatory for estimating the genetic responses of maize genotypes through genetic approaches. Seed priming, foliar and soil applications are agronomic tools for biofortification, but solo and combined applications of these treatments have different effects on Zn enrichment. Genetic approaches include the increase of Zn bioavailability or increase of kernel Zn concentration. Zn bioavailability could be increased by reducing the anti‐nutritional factors or by increasing the bioavailability enhancers. Kernel Zn concentration could be improved through hybridization and selections, whereas genetically engineered attempts for improving Zn uptake from soil, loading in xylem, remobilization in grains and sequestration in endosperm can further improve the kernel Zn concentration. Key challenges associated with dissemination of Zn biofortified maize are also under discussion in this draft. Current review emphasized all of above‐mentioned contents to provide roadmap for the development of Zn biofortified maize genotypes to curb the global Zn malnutrition.

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Section: Strategies For Zn Biofortification Of Maizementioning

confidence: 97%

Section: Strategies For Zn Biofortification Of Maizementioning

confidence: 99%

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Zinc biofortification of maize (Zea mays L.): Status and challenges

Maqbool¹,

Beshir²

2018

Plant Breeding

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“…As previously stated, control soil contained ppm total Zn, thus and ppm Zn supplementation resulted in (within the typical 10-300 ppm range) and ppm (over the typical range) total soil Zn content, respectively. Zn exists in five distinct pools in soils such as water soluble, exchangeable, adsorbed, chelated or complexes of Zn (Noulas et al 2018, however the investigation of the form and bioavailability of the total Zn in the soil were not our aim, thus were not examined. Throughout the article control refers to soil containing 60 ppm Zn, as provided by the manufacturer.…”

Section: Zn Uptake-induced Changes In Root Architecture Root Cell Wamentioning

confidence: 99%

Zinc-induced root architectural changes of rhizotron-grown B. napus correlate with a differential nitro-oxidative response

et al. 2019

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“…However, more than 50% of the world's agricultural soils have been reported to suffer medium to widespread zinc deficiency (Sillanpä ä , 1990;Alloway, 2008;Welch et al, 2013;RLF, 2015). This has significantly contributed to poor crop yield (Noulas et al, 2018) and aggravated poor-diet-induced zinc deficiency in humans (Cakmak et al, 1999;Alloway, 2009), thus making it of global concern (WHO, 2006; Cakmak, 2009;Sharma et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Kinetics of water‐extractable zinc release from seaweed (Fucus serratus) as soil amendment

Oluwadare

Carney

Sarker

et al. 2020

J. Plant Nutr. Soil Sci.

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Soil fertilization with trace‐metal rich organic fertilizers such as Fucus serratus seaweed may be an effective way to combat micronutrient deficiency. In this study the kinetics of zinc release from Fucus serratus seaweed was investigated in a packed soil column leaching experiment over 1,776 h. The release of zinc from control (soil only) and treatment (soil + seaweed; equivalent zinc application rate of 1.42 kg ha−1) columns, measured by ICP‐MS, demonstrated two distinct release stages. The cumulative zinc release data for each phase were fitted to five kinetic models: zero order, first order, Elovich, power function and parabolic diffusion. In the first stage (0–400 hours) the release of zinc from both control and treatment was best described by a parabolic rate law, indicating release of zinc from a soluble soil reservoir. In the second stage (400–1,776 h) zinc release followed a zero order rate law indicative of slow release from an essentially insoluble reservoir. The modelled difference between the amount of zinc released from treatment and control columns in stage 1 (230 ± 11 µg) represented the total amount of zinc added via seaweed. The parabolic rate constant for seaweed zinc release was 12.09 µg g−1 h−0.5. In summary, the addition of F. serratus to soil is a viable source of labile zinc and a low cost agronomic option for mitigating zinc deficiency in soils.

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Zinc in soils, water and food crops

Cited by 347 publications

References 42 publications

Zinc biofortification of maize (Zea mays L.): Status and challenges

Zinc biofortification of maize (Zea mays L.): Status and challenges

Zinc-induced root architectural changes of rhizotron-grown B. napus correlate with a differential nitro-oxidative response

Kinetics of water‐extractable zinc release from seaweed (Fucus serratus) as soil amendment

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