Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice

Abstract Silicate slags are one of the most widely used silicon (Si) source in agriculture. Even though the agronomic significance of slags has been demonstrated in several crops, only a few attempts were made to evaluate these Si sources based on their chemical composition. The main objective of th...

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Autores principales:	Thoppil Sreenivasan Sandhya, Nagabovanalli Basavarajappa Prakash
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4645a49d4aa34a91a5043e1df257b6b4
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spelling	oai:doaj.org-article:4645a49d4aa34a91a5043e1df257b6b42021-12-02T13:34:33ZAlkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice10.1038/s41598-021-84922-22045-2322https://doaj.org/article/4645a49d4aa34a91a5043e1df257b6b42021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84922-2https://doaj.org/toc/2045-2322Abstract Silicate slags are one of the most widely used silicon (Si) source in agriculture. Even though the agronomic significance of slags has been demonstrated in several crops, only a few attempts were made to evaluate these Si sources based on their chemical composition. The main objective of this study was to characterize different silicate slags based on their chemical properties and to explore the effect of these chemical properties on the yield, and Si uptake in wetland rice, and dissolution of Si into the soil. Slags were characterised for pH, calcium and magnesium content (alkalinity, A), silicon content, 5 day Na2CO3 + NH4NO3 extractable Si content, and alkalinity to Si ratio (A/Si). Greenhouse and incubation experiments were also conducted using different silicate slags and wollastonite applied at the rate of 300 kg Si ha−1. Slags with A/Si < 3 were found to be ideal Si sources for the economic production of wetland rice and found consistent in increasing soil Si content and rice Si uptake. We conclude that the A/Si ratio of slags can be used as an important parameter to assess the agronomic efficiency of silicate slags in wetland rice.Thoppil Sreenivasan SandhyaNagabovanalli Basavarajappa PrakashNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thoppil Sreenivasan Sandhya Nagabovanalli Basavarajappa Prakash Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
description	Abstract Silicate slags are one of the most widely used silicon (Si) source in agriculture. Even though the agronomic significance of slags has been demonstrated in several crops, only a few attempts were made to evaluate these Si sources based on their chemical composition. The main objective of this study was to characterize different silicate slags based on their chemical properties and to explore the effect of these chemical properties on the yield, and Si uptake in wetland rice, and dissolution of Si into the soil. Slags were characterised for pH, calcium and magnesium content (alkalinity, A), silicon content, 5 day Na2CO3 + NH4NO3 extractable Si content, and alkalinity to Si ratio (A/Si). Greenhouse and incubation experiments were also conducted using different silicate slags and wollastonite applied at the rate of 300 kg Si ha−1. Slags with A/Si < 3 were found to be ideal Si sources for the economic production of wetland rice and found consistent in increasing soil Si content and rice Si uptake. We conclude that the A/Si ratio of slags can be used as an important parameter to assess the agronomic efficiency of silicate slags in wetland rice.
format	article
author	Thoppil Sreenivasan Sandhya Nagabovanalli Basavarajappa Prakash
author_facet	Thoppil Sreenivasan Sandhya Nagabovanalli Basavarajappa Prakash
author_sort	Thoppil Sreenivasan Sandhya
title	Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
title_short	Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
title_full	Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
title_fullStr	Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
title_full_unstemmed	Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
title_sort	alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4645a49d4aa34a91a5043e1df257b6b4
work_keys_str_mv	AT thoppilsreenivasansandhya alkalinitysiliconratioasanassessmentfactorfortheefficiencyofsilicateslagsinwetlandrice AT nagabovanallibasavarajappaprakash alkalinitysiliconratioasanassessmentfactorfortheefficiencyofsilicateslagsinwetlandrice
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Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice

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