Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil

Potted rice seedlings independently treated with N, P, and NP were continuously13CO2 labeled to investigated the influence of N and P application on the contribution of photosynthesized C to the rhizosphere versus bulk soil and particulate organic matter (POM) versus mineral fraction (MIN). N and NP...

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Autores principales:	Mostafa Zhran, Tida Ge, Yaoyao Tong, Zhenke Zhu, Yangwu Deng, Ahmed Fahmy, Ming Chen, Tin Mar Lynn, Jinshui Wu, Anna Gunina
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	paddy soil 13co2 continuous labeling fertilization carbon input rhizosphere bulk soil Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/0a05d96b9bc54ceaa74d7ee0eb291f4a
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spelling	oai:doaj.org-article:0a05d96b9bc54ceaa74d7ee0eb291f4a2021-12-02T17:23:22ZEffect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil2332-887810.1080/20964129.2021.1941271https://doaj.org/article/0a05d96b9bc54ceaa74d7ee0eb291f4a2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20964129.2021.1941271https://doaj.org/toc/2332-8878Potted rice seedlings independently treated with N, P, and NP were continuously13CO2 labeled to investigated the influence of N and P application on the contribution of photosynthesized C to the rhizosphere versus bulk soil and particulate organic matter (POM) versus mineral fraction (MIN). N and NP enhanced net assimilated 13C on day 14 (D14), with maximum C assimilation occurring on day 22 (D22) under NP. Aboveground biomass retained more 13C than belowground biomass for all treatments. 13C incorporation into the rhizosphere exceeded that in bulk soil, with the maximum (6–10%) found under N addition. Newly assimilated 13C incorporated into POM increased in the rhizosphere under N and NP conditions, whereas MIN remained largely unaffected. 13C-MBC proportion in the total microbial biomass C (MBC) pool revealed that N and NP stimulated microbial activity to a greater degree than P. The main portion of 13C in the rhizosphere and bulk soil was found in POM on D14, which decreased over time due to microbial utilization. Contrastingly, root-derived 13C in the MIN remained unchanged between sampling days, which indicates that the stabilization of rhizodeposits in this fraction might be the potential mechanism underlying SOM sequestration in paddy soils.Mostafa ZhranTida GeYaoyao TongZhenke ZhuYangwu DengAhmed FahmyMing ChenTin Mar LynnJinshui WuAnna GuninaTaylor & Francis Grouparticlepaddy soil13co2 continuous labelingfertilizationcarbon inputrhizospherebulk soilEcologyQH540-549.5ENEcosystem Health and Sustainability, Vol 7, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	paddy soil 13co2 continuous labeling fertilization carbon input rhizosphere bulk soil Ecology QH540-549.5
spellingShingle	paddy soil 13co2 continuous labeling fertilization carbon input rhizosphere bulk soil Ecology QH540-549.5 Mostafa Zhran Tida Ge Yaoyao Tong Zhenke Zhu Yangwu Deng Ahmed Fahmy Ming Chen Tin Mar Lynn Jinshui Wu Anna Gunina Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
description	Potted rice seedlings independently treated with N, P, and NP were continuously13CO2 labeled to investigated the influence of N and P application on the contribution of photosynthesized C to the rhizosphere versus bulk soil and particulate organic matter (POM) versus mineral fraction (MIN). N and NP enhanced net assimilated 13C on day 14 (D14), with maximum C assimilation occurring on day 22 (D22) under NP. Aboveground biomass retained more 13C than belowground biomass for all treatments. 13C incorporation into the rhizosphere exceeded that in bulk soil, with the maximum (6–10%) found under N addition. Newly assimilated 13C incorporated into POM increased in the rhizosphere under N and NP conditions, whereas MIN remained largely unaffected. 13C-MBC proportion in the total microbial biomass C (MBC) pool revealed that N and NP stimulated microbial activity to a greater degree than P. The main portion of 13C in the rhizosphere and bulk soil was found in POM on D14, which decreased over time due to microbial utilization. Contrastingly, root-derived 13C in the MIN remained unchanged between sampling days, which indicates that the stabilization of rhizodeposits in this fraction might be the potential mechanism underlying SOM sequestration in paddy soils.
format	article
author	Mostafa Zhran Tida Ge Yaoyao Tong Zhenke Zhu Yangwu Deng Ahmed Fahmy Ming Chen Tin Mar Lynn Jinshui Wu Anna Gunina
author_facet	Mostafa Zhran Tida Ge Yaoyao Tong Zhenke Zhu Yangwu Deng Ahmed Fahmy Ming Chen Tin Mar Lynn Jinshui Wu Anna Gunina
author_sort	Mostafa Zhran
title	Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
title_short	Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
title_full	Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
title_fullStr	Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
title_full_unstemmed	Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
title_sort	effect of n and p fertilization on the allocation and fixation of photosynthesized carbon in paddy soil
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/0a05d96b9bc54ceaa74d7ee0eb291f4a
work_keys_str_mv	AT mostafazhran effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT tidage effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT yaoyaotong effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT zhenkezhu effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT yangwudeng effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT ahmedfahmy effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT mingchen effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT tinmarlynn effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT jinshuiwu effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil AT annagunina effectofnandpfertilizationontheallocationandfixationofphotosynthesizedcarboninpaddysoil
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Effect of N and P fertilization on the allocation and fixation of photosynthesized carbon in paddy soil

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