Compost enriched with ZnO and zn-solubilising bacteria improves yield and zn-fortification in flooded rice

Hassan Zeb, Azhar Hussain, Muhammad Naveed, Allah Ditta, Shakeel Ahmad, Muhammad Usman Jamshaid, Hafiz Tanvir Ahmad, Muhammad Baqir Hussain, Riffat Aziz, Muhammad Sajjad Haider

Research output: Contribution to journalArticle

Abstract

Zinc (Zn) is an essential element for humans, animals and plants, however, its deficiency has been widely reported around the world especially in flooded rice. Adequate amount of Zn is considered essential for optimum growth and development of rice. We hypothesised that management practices like Zn-mineral fertiliser,-compost, and-solubilising bacteria would improve Zn availability and uptake in flooded rice. A series of studies were conducted to find out the comparative efficacy of Zn-enriched composts (Zn-ECs) with Zn solubilising bacteria (ZnSB) vs. ZnSO4 for improved growth, yield and Zn accumulation in rice. There were six treatments viz. control, ZnSB, ZnO (80% Zn), ZnSO4 (33% Zn), Zn-EC80:20 and Zn-EC60:40. In all the treatments, Zn was applied at the rate of 5 kg ha–1 except the control. The treatment Zn-EC60:40 resulted in the maximum Zn release in soil as compared to ZnSO4 and all other treatments during incubation study. The treatment Zn-EC60:40 significantly improved root dryiweight, grain yield and 100-grain weight of rice by 15, 22 and 28%, respectively as compared to ZnSO4. The same treatment resulted in the maximum increase in photosynthetic rate (11%), transpiration rate (21%), stomatal conductance (17%), chlorophyll contents (8%) and carbonic anhydrase activity (10%) while a decrease of 27% in electrolyte leakage was observed in comparison with ZnSO4 application. Moreover, the maximum increase in grain quality parameters and Zn bioaccumulation was observed with the application of Zn-EC60:40 in comparison with ZnSO4 application and all other treatments. We conclude that Zn-EC60:40 are not only an effective strategy to improve growth, physiology and yield parameters of rice, but also to improve the grain quality and Zn-bioaccumulation in rice compared to ZnSO4.

Original languageEnglish
Pages (from-to)310-316
Number of pages7
JournalItalian Journal of Agronomy
Volume13
Issue number4
DOIs
Publication statusPublished - 1 Oct 2018

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solubilization
composts
Zinc
Soil
zinc
Bacteria
rice
bacteria
Oryza
bioaccumulation
zinc fertilizers
Carbonic Anhydrases
carbonate dehydratase
Practice Management
Fertilizers
Chlorophyll
mineral fertilizers
Growth
Growth and Development
electrolytes

Cite this

Zeb, Hassan ; Hussain, Azhar ; Naveed, Muhammad ; Ditta, Allah ; Ahmad, Shakeel ; Jamshaid, Muhammad Usman ; Ahmad, Hafiz Tanvir ; Hussain, Muhammad Baqir ; Aziz, Riffat ; Haider, Muhammad Sajjad. / Compost enriched with ZnO and zn-solubilising bacteria improves yield and zn-fortification in flooded rice. In: Italian Journal of Agronomy. 2018 ; Vol. 13, No. 4. pp. 310-316.
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abstract = "Zinc (Zn) is an essential element for humans, animals and plants, however, its deficiency has been widely reported around the world especially in flooded rice. Adequate amount of Zn is considered essential for optimum growth and development of rice. We hypothesised that management practices like Zn-mineral fertiliser,-compost, and-solubilising bacteria would improve Zn availability and uptake in flooded rice. A series of studies were conducted to find out the comparative efficacy of Zn-enriched composts (Zn-ECs) with Zn solubilising bacteria (ZnSB) vs. ZnSO4 for improved growth, yield and Zn accumulation in rice. There were six treatments viz. control, ZnSB, ZnO (80{\%} Zn), ZnSO4 (33{\%} Zn), Zn-EC80:20 and Zn-EC60:40. In all the treatments, Zn was applied at the rate of 5 kg ha–1 except the control. The treatment Zn-EC60:40 resulted in the maximum Zn release in soil as compared to ZnSO4 and all other treatments during incubation study. The treatment Zn-EC60:40 significantly improved root dryiweight, grain yield and 100-grain weight of rice by 15, 22 and 28{\%}, respectively as compared to ZnSO4. The same treatment resulted in the maximum increase in photosynthetic rate (11{\%}), transpiration rate (21{\%}), stomatal conductance (17{\%}), chlorophyll contents (8{\%}) and carbonic anhydrase activity (10{\%}) while a decrease of 27{\%} in electrolyte leakage was observed in comparison with ZnSO4 application. Moreover, the maximum increase in grain quality parameters and Zn bioaccumulation was observed with the application of Zn-EC60:40 in comparison with ZnSO4 application and all other treatments. We conclude that Zn-EC60:40 are not only an effective strategy to improve growth, physiology and yield parameters of rice, but also to improve the grain quality and Zn-bioaccumulation in rice compared to ZnSO4.",
keywords = "Bacillus, Biofortification, Compost, Rice, Zinc solubilising bacteria, ZnO, ZnSO",
author = "Hassan Zeb and Azhar Hussain and Muhammad Naveed and Allah Ditta and Shakeel Ahmad and Jamshaid, {Muhammad Usman} and Ahmad, {Hafiz Tanvir} and Hussain, {Muhammad Baqir} and Riffat Aziz and Haider, {Muhammad Sajjad}",
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Zeb, H, Hussain, A, Naveed, M, Ditta, A, Ahmad, S, Jamshaid, MU, Ahmad, HT, Hussain, MB, Aziz, R & Haider, MS 2018, 'Compost enriched with ZnO and zn-solubilising bacteria improves yield and zn-fortification in flooded rice' Italian Journal of Agronomy, vol. 13, no. 4, pp. 310-316. https://doi.org/10.4081/ija.2018.1295

Compost enriched with ZnO and zn-solubilising bacteria improves yield and zn-fortification in flooded rice. / Zeb, Hassan; Hussain, Azhar; Naveed, Muhammad; Ditta, Allah; Ahmad, Shakeel; Jamshaid, Muhammad Usman; Ahmad, Hafiz Tanvir; Hussain, Muhammad Baqir; Aziz, Riffat; Haider, Muhammad Sajjad.

In: Italian Journal of Agronomy, Vol. 13, No. 4, 01.10.2018, p. 310-316.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Compost enriched with ZnO and zn-solubilising bacteria improves yield and zn-fortification in flooded rice

AU - Zeb, Hassan

AU - Hussain, Azhar

AU - Naveed, Muhammad

AU - Ditta, Allah

AU - Ahmad, Shakeel

AU - Jamshaid, Muhammad Usman

AU - Ahmad, Hafiz Tanvir

AU - Hussain, Muhammad Baqir

AU - Aziz, Riffat

AU - Haider, Muhammad Sajjad

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Zinc (Zn) is an essential element for humans, animals and plants, however, its deficiency has been widely reported around the world especially in flooded rice. Adequate amount of Zn is considered essential for optimum growth and development of rice. We hypothesised that management practices like Zn-mineral fertiliser,-compost, and-solubilising bacteria would improve Zn availability and uptake in flooded rice. A series of studies were conducted to find out the comparative efficacy of Zn-enriched composts (Zn-ECs) with Zn solubilising bacteria (ZnSB) vs. ZnSO4 for improved growth, yield and Zn accumulation in rice. There were six treatments viz. control, ZnSB, ZnO (80% Zn), ZnSO4 (33% Zn), Zn-EC80:20 and Zn-EC60:40. In all the treatments, Zn was applied at the rate of 5 kg ha–1 except the control. The treatment Zn-EC60:40 resulted in the maximum Zn release in soil as compared to ZnSO4 and all other treatments during incubation study. The treatment Zn-EC60:40 significantly improved root dryiweight, grain yield and 100-grain weight of rice by 15, 22 and 28%, respectively as compared to ZnSO4. The same treatment resulted in the maximum increase in photosynthetic rate (11%), transpiration rate (21%), stomatal conductance (17%), chlorophyll contents (8%) and carbonic anhydrase activity (10%) while a decrease of 27% in electrolyte leakage was observed in comparison with ZnSO4 application. Moreover, the maximum increase in grain quality parameters and Zn bioaccumulation was observed with the application of Zn-EC60:40 in comparison with ZnSO4 application and all other treatments. We conclude that Zn-EC60:40 are not only an effective strategy to improve growth, physiology and yield parameters of rice, but also to improve the grain quality and Zn-bioaccumulation in rice compared to ZnSO4.

AB - Zinc (Zn) is an essential element for humans, animals and plants, however, its deficiency has been widely reported around the world especially in flooded rice. Adequate amount of Zn is considered essential for optimum growth and development of rice. We hypothesised that management practices like Zn-mineral fertiliser,-compost, and-solubilising bacteria would improve Zn availability and uptake in flooded rice. A series of studies were conducted to find out the comparative efficacy of Zn-enriched composts (Zn-ECs) with Zn solubilising bacteria (ZnSB) vs. ZnSO4 for improved growth, yield and Zn accumulation in rice. There were six treatments viz. control, ZnSB, ZnO (80% Zn), ZnSO4 (33% Zn), Zn-EC80:20 and Zn-EC60:40. In all the treatments, Zn was applied at the rate of 5 kg ha–1 except the control. The treatment Zn-EC60:40 resulted in the maximum Zn release in soil as compared to ZnSO4 and all other treatments during incubation study. The treatment Zn-EC60:40 significantly improved root dryiweight, grain yield and 100-grain weight of rice by 15, 22 and 28%, respectively as compared to ZnSO4. The same treatment resulted in the maximum increase in photosynthetic rate (11%), transpiration rate (21%), stomatal conductance (17%), chlorophyll contents (8%) and carbonic anhydrase activity (10%) while a decrease of 27% in electrolyte leakage was observed in comparison with ZnSO4 application. Moreover, the maximum increase in grain quality parameters and Zn bioaccumulation was observed with the application of Zn-EC60:40 in comparison with ZnSO4 application and all other treatments. We conclude that Zn-EC60:40 are not only an effective strategy to improve growth, physiology and yield parameters of rice, but also to improve the grain quality and Zn-bioaccumulation in rice compared to ZnSO4.

KW - Bacillus

KW - Biofortification

KW - Compost

KW - Rice

KW - Zinc solubilising bacteria

KW - ZnO

KW - ZnSO

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