Zinc fertilization influence on maize productivity and grain nutritional quality under integrated soil fertility management in Zimbabwe

Manzeke, Grace M.; Mtambanengwe, Florence; Nezomba, Hatirarami; Mapfumo, Paul

doi:10.1016/j.fcr.2014.05.019

Cited by 87 publications

(76 citation statements)

References 33 publications

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“…Second, no account has been taken of residual benefits of Zn fertilisers on subsequent crop yields or grain Zn composition. However, residual effects are likely to provide benefits for several years for both wheat and other crops (NFDC 1998;Singh and Shivay 2013;Manzeke et al 2014;Wang et al 2015b). Third, foliar Zn applications could make up a larger proportion of future Zn fertiliser-use, especially if it is applied in conjunction with pesticide sprays to minimise additional costs of application (Wang et al 2015a;Ram et al 2016).…”

Section: Discussionmentioning

confidence: 99%

“…3-11:1;NFDC 1998). In addition to yield increases in the year of Zn fertiliser application, there may be beneficial residual effects of Zn fertilisers for subsequent crops for three or more years (NFDC 1998;Singh and Shivay 2013;Manzeke et al 2014;Wang et al 2015a). However, despite these potential financial returns, Zn fertilisers remain little utilised in Pakistan and elsewhere, for several reasons.…”

Section: Introductionmentioning

confidence: 99%

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Valuing increased zinc (Zn) fertiliser-use in Pakistan

Joy

Ahmad²,

Zia

et al. 2016

Plant Soil

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Valuing increased zinc (Zn) fertiliser-use in Pakistan

Joy

Ahmad²,

Zia

et al. 2016

Plant Soil

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“…Zinc content in grains, for plants treated with Spirulina 150% was 17.9% higher than for plants fertilized only by NPK fertilizer. In similar tests on maize, Menzeke and coworkers (2014) obtained comparable results (7.2−18%) with cattle manure application with Zn [28]. Lungu and coworkers (2011) observed 6−15% increase of Zn in grain of maize, with soil application of 50 kg ha -1 ZnSO 4 × 7H 2 O (11.4 kg ha -1 of pure Zn) [29].…”

Section: Micronutrient Content In Corn Grainmentioning

confidence: 91%

Biofortification of maize with micronutrients by Spirulina

et al. 2015

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Abstract:The aim of the present work was to examine the effect of the application of Spirulina platensis post-extraction residues enriched with Zn(II), Mn(II), Cu(II) via biosorption as micronutrient fertilizer for the biofortification of maize grains with micronutrients in field tests. As a nominal dose 2.5 kg ha -1 of zinc, 1.0 kg ha -1 of manganese and 0.5 kg ha -1 of copper were applied. The preparation was applied also in higher doses (150%, 200%) to investigate agronomic biofortification of maize grains. In field trials, obtained grain yield (7.2 Mg ha -1 for Spirulina 100%) was higher than in control group (6.2 Mg ha -1 ) and commercial reference product (6.6 Mg ha -1 ). For the same dose of micronutrients, their bioavailability was higher for bio-preparations than for reference fertilizer. The highest content of micronutrients delivered to plants (2.15 mg kg -1 -Cu, 7.07 mg kg -1 -Mn, 29.0 mg kg -1 -Zn) was observed for maize grains fertilized with preparation of Spirulina 150%, which signifies that biofortified maize grain was obtained. Corn grains biofortified with micronutrients can be used as staple food or feed preventing from micronutrient malnutrition. The application of micronutrient biocomponents based on Spirulina biomass allows to manufacture a valuable fertilizer with bioavailable micronutrients.

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“…In highlyweathered tropical soils, Zn deficiency may be a product of leaching and low total Zn content (Alloway 2008). Only two of the studies reviewed here included trials located in Africa, both of soil-applied Zn, reporting an 18 % increase in the concentration of Zn in the grain of maize on borderline Zn-deficient soils in Zimbabwe (Manzeke et al 2014) and a 4 % increase in the concentration of Zn in the grain of wheat grown on Zn-deficient soils in Zambia . Clearly, more studies are required across the varied environmental conditions found in sub-Saharan Africa to verify the estimates of the effects of applied Zn on grain Zn concentration.…”

Section: Baseline Dietary Zn Supplies and Deficiency Prevalencementioning

confidence: 99%

Zinc-enriched fertilisers as a potential public health intervention in Africa

Stein²,

et al. 2015

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Background In this review, we examine the potential of Zn-enriched fertilisers to alleviate human dietary Zn deficiency. The focus is on ten African countries where dietary Zn supply is low and where fertiliser subsidies are routinely deployed on cereal crops. Scope Dietary Zn supply and deficiency prevalence were quantified from food supply and composition data. Typical effects of soil (granular) and foliar Zn applications on Zn concentrations in maize (Zea mays L.), rice (Oryza sativa L.) and wheat (Triticum aestivum L.) grains were based on a systematic literature review. Reductions in disease burdens attributable to Zn deficiency and cost-effectiveness were estimated using a disability-adjusted life years (DALYs) approach. Conclusions Baseline Zn supply in 2009 ranged from 7.1 (Zambia) to 11.9 (Mali) mg capita −1 day −1

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Zinc fertilization influence on maize productivity and grain nutritional quality under integrated soil fertility management in Zimbabwe

Cited by 87 publications

References 33 publications

Valuing increased zinc (Zn) fertiliser-use in Pakistan

Valuing increased zinc (Zn) fertiliser-use in Pakistan

Biofortification of maize with micronutrients by Spirulina

Zinc-enriched fertilisers as a potential public health intervention in Africa

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