Biogeochemical cycling of zinc in soil-cassava cropping system in Thailand

Leksungnoen, Parapond; Aramrak, Surachet; Chittamart, Natthapol; Wisawapipat, Worachart

doi:10.1016/j.geoderma.2021.115496

Cited by 9 publications

(5 citation statements)

References 56 publications

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“…Zinc contents were higher in the shoot cassava parts. According to LEKSUNGNOEN et al (2022), Zn concentrations vary between cassava cultivars and plant parts, with shoot biomass being more abundant in Zn than below ground biomass. In their study, the results showed that 88% of the total Zn absorption was accumulated in the shoot of the cassava plant.…”

Section: Resultsmentioning

confidence: 99%

“…Zn is important for enzyme activation, regulation, and gene expression in plants, as well as protein synthesis, glucose metabolism, photosynthesis, phytohormones, fertility, growth regulation, seed development, and disease tolerance (TAIZ et al, 2017;REHMAN et al, 2018;RAI et al, 2021). LEKSUNGNOEN et al (2022) highlighted RESUMO: A aplicação de fertilizantes com zinco no solo tem sido uma prática agronômica para corrigir a deficiência de Zn nas plantas, visando aumentar a produtividade e/ou a qualidade nutricional. O objetivo deste estudo foi avaliar como a fertilização com sulfato de zinco afeta o crescimento da planta, o desempenho produtivo e o acúmulo de nutrientes na mandioca 'IAC 576-70'.…”

Section: Introductionunclassified

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Growth, yield and nutrients of sweet cassava fertilized with zinc

et al. 2023

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The application of zinc fertilizers in the soil has been an agronomic practice to correct Zn deficiency in plants, aiming to increase productivity and/or nutritional quality. This study evaluated how zinc sulfate fertilization affects plant growth, yield performance and nutrient accumulation in the cassava ‘IAC 576-70’. The experimental design was in randomized blocks with eight replications. The treatments consisted of 0, 1.5, 3.0, 4.5 and 6.0 g p1-1 ZnSO4. Results showed improvement in yield with soil fertilization with ZnSO4, with the optimal dose of 2.5 g pl-1. The uptake of nutrients in plant parts is favored with lower doses of zinc fertilizer, with maximum points ranging from 0.8 to 3.2 g pl-1 for macronutrients and 1.6 to 3.6 g pl-1 for micronutrients. The Zn content in tuberous roots increases by more than 40% with fertilization up to 2.8 g pl-1 of fertilizer, which contributes to the nutritional value of roots.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionunclassified

Growth, yield and nutrients of sweet cassava fertilized with zinc

et al. 2023

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“…Soil Zn is present in different pools or fractions: in soil solution, bound to soil solid particles and fixed 57,58 . The nutrients present in soil solution, also called the actually available pool, are directly available for plant uptake, normally 1% of the total Zn 59 . The labile pool is in equilibrium with the actual available pool, through adsorption/desorption and precipitation/dissolution processes, which are strongly governed by soil pH.…”

Section: Discussionmentioning

confidence: 99%

“…Plants cannot during a season take up nutrients from the fixed pool as this pool only becomes available through weathering, which is a slow process 60 . Although the average soil total Zn concentration in China was quite high, about 79.8 mg kg −1 (about 359 kg ha −1 ), 46 the Zn weathering process was estimated using the Zn release rate from phyllosilicate weathering (about 0.30 g Zn ha −1 yr −1 ) which is slow 59,61 . Therefore, there is still a need to monitor the yearly change of soil available Zn in agricultural production and apply Zn fertilizer periodically to guarantee the available Zn balance in soil.…”

Section: Discussionmentioning

confidence: 99%

“…57,58 The nutrients present in soil solution, also called the actually available pool, are directly available for plant uptake, normally 1% of the total Zn. 59 The labile pool is in equilibrium with the actual available pool, through adsorption/desorption and precipitation/dissolution processes, which are strongly governed by soil pH. The combined labile and solution nutrient pool can be regarded as the nutrients that become available for plant uptake during a growing season.…”

Section: Effects Of Wheat and Rice Production On Soil Zn Removalmentioning

confidence: 99%

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The potential of biofortification technologies for wheat and rice to fill the nutritional Zn intake gap in China

Liu,

Melse‐Boonstra,

van der Werf

et al. 2023

J Sci Food Agric

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BACKGROUNDZinc (Zn) deficiency in humans is of worldwide concern. The objective of this study was to investigate the Zn intake gap in Chinese adults and identify the potential role of biofortification technologies for wheat and rice, including crop nutrient management and breeding, in filling the gap.RESULTSWe use data from the China Health and Nutrition Survey in 2011 to identify food consumption patterns and dietary Zn intake of 4512 adults to define and quantify the Zn intake gap in the population. The dietary Zn intake gap of surveyed adults ranged from −0.8 to 6.53 mg day−1 across nine provinces and differences were associated with differences in food consumption patterns. Both dietary Zn intake and Zn gap for males were higher than for females. The potential of changes in five management strategies (improved nitrogen fertilization, improved phosphorus fertilization, foliar Zn fertilization, improved water management and growing varieties reaching the grain Zn breeding target) was analyzed. Breeding and foliar Zn fertilization were shown to be the two most effective management strategies that could increase dietary intake by 1.29 to 5 mg Zn day−1 dependent on sex and province.CONCLUSIONThis study shows that the Zn gap varied across regions in China, with some large enough to warrant interventions. Wheat and rice as two major Zn sources could be targeted without a direct need for dietary diversification. By promoting both biofortification breeding of wheat and rice and Zn fertilization, dietary Zn intake could be enhanced to contribute to human health improvement in China. © 2023 Society of Chemical Industry.

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