Effect of zinc application strategies on maize grain yield and zinc concentration in mollisols

Cuesta, Nicolás Martínez; Carciochi, Walter D.; Sainz-Rozas, Hernán; Salvagiotti, Fernando; Colazo, Juan Cruz; Wyngaard, Nicolás; Eyherabide, Mercedes; Ferraris, Gustavo Nestor; Barbieri, Pablo

doi:10.1080/01904167.2020.1844754

Cited by 10 publications

(2 citation statements)

References 52 publications

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“…In this study, majority of observation in the no Zn treatment showed maize grain Zn above the sufficiency threshold. This proposition was recently re-affirmed in Argentina [ 82 ], where in five Zn deficient sites, it is reported that whenever the maize grain Zn exceeded 18 ppm in the no Zn (control) maize grain Zn did not show any noticeable response to Zn fertilization. It is also probable that the cultivars of the maize used were inefficient in absorbing the applied Zn and loading it to the grains [ 83 ] to the levels required to meet human nutritional needs.…”

Section: Discussionmentioning

confidence: 82%

Maize grain yield and grain zinc concentration response to zinc fertilization: A meta-analysis

Mutambu

Kihara

Mucheru-Muna

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 82%

Maize grain yield and grain zinc concentration response to zinc fertilization: A meta-analysis

Mutambu

Kihara

Mucheru-Muna

et al. 2023

Heliyon

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“…Similarly, uptake of Zn by paddy/grains was also increased with the Zn-fertilization and calculated as maximum with the addition of BAZU followed by ZnSO 4 over control (Fig 3). The increases in uptake of Zn by rice paddy and wheat grains were due to the increased demand resulting from the enhanced utilization of Zn in biomass production [65,66].…”

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confidence: 99%

Enhancements in yield, agronomic, and zinc recovery efficiencies of rice-wheat system through bioactive zinc coated urea application in Aridisols

et al. 2023

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Background Zinc (Zn) deficiency and source-dependent Zn fertilization to achieve optimum Zn levels in rice and wheat grains remain global concern for human nutrition, especially in developing countries. To-date, little is known about the effectiveness of bioactive Zn-coated urea (BAZU) to enhance the concentration, uptake, and recovery of Zn in relation to agronomic efficiency in paddy and wheat grains. Results Field experiments were carried out during 2020–21 on the rice-wheat system at Lahore, Faisalabad, Sahiwal, and Multan, Punjab, Pakistan using four treatments viz.T1 (Urea 46% N @ 185 kg ha-1 + zero Zn), T2 (Urea 46% N @ 185 kg ha-1 + ZnSO4 33% Zn @ 15 kg ha-1), T3 (BAZU 42% N @ 103 kg ha-1 + Urea 46% N @ 62 kg ha-1 + 1% bioactive Zn @ 1.03 kg ha-1) and T4 (BAZU 42% N @ 125 kg ha-1 + Urea 46% N @ 62 kg ha-1 + 1% bioactive Zn @ 1.25 kg ha-1) in quadruplicate under Randomized Complete Block Design. Paddy yield was increased by 13, 11, 12, and 11% whereas wheat grain yield was enhanced by 12, 11, 11, and 10% under T4 at Multan, Faisalabad, Sahiwal, and Lahore, respectively, compared to T1. Similarly, paddy Zn concentration was increased by 58, 67, 65 and 77% (32.4, 30.7, 31.1, and 34.1 mg kg-1) in rice whereas grain Zn concentration was increased by 90, 87, 96 and 97% (46.2, 43.9, 46.7 and 44.9 mg kg-1) in wheat by the application of BAZU (T4) at Multan, Faisalabad, Sahiwal, and Lahore, respectively, in comparison to T1. Zinc recovery was about 9-fold and 11-fold higher in paddy and wheat grains, respectively, under BAZU (T4) treatment relative to T2 while, the agronomic efficiency was enhanced up to 130% and 141% in rice and wheat respectively as compared to T2. Conclusion Thus, T4 application at the rate of 125 kg ha-1 could prove effective in enhancing the rice paddy and wheat grain yield along with their Zn biofortification (∼34 mg kg-1 and ∼47 mg kg-1, respectively) through increased agronomic and Zn recovery efficiencies, the underlying physiological and molecular mechanisms of which can be further explored in future.

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Biofortification of Maize with Zinc and Its Effect on Human Health

Obaid

Shrestha

Liu

et al. 2022

J Soil Sci Plant Nutr

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Effect of zinc application strategies on maize grain yield and zinc concentration in mollisols

Cited by 10 publications

References 52 publications

Maize grain yield and grain zinc concentration response to zinc fertilization: A meta-analysis

Maize grain yield and grain zinc concentration response to zinc fertilization: A meta-analysis

Enhancements in yield, agronomic, and zinc recovery efficiencies of rice-wheat system through bioactive zinc coated urea application in Aridisols

Biofortification of Maize with Zinc and Its Effect on Human Health

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