The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China

Abstract The effect of Chinese Milk Vetch (CMV) residues as a cover crop on the performance of rice plants and nitrogen mobilization and mineralization in paddy soil was evaluated in a pot-culture experiment. Three treatments were included in the trial, i.e. without exogenous-N (Control or CK), urea...

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Autores principales:	Zhijian Xie, Chunhuo Zhou, Farooq Shah, Amjad Iqbal, GuoRong Ni
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4655bec072464e8f80a101cfd26151c5
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spelling	oai:doaj.org-article:4655bec072464e8f80a101cfd26151c52021-12-02T15:09:10ZThe role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China10.1038/s41598-018-30239-62045-2322https://doaj.org/article/4655bec072464e8f80a101cfd26151c52018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30239-6https://doaj.org/toc/2045-2322Abstract The effect of Chinese Milk Vetch (CMV) residues as a cover crop on the performance of rice plants and nitrogen mobilization and mineralization in paddy soil was evaluated in a pot-culture experiment. Three treatments were included in the trial, i.e. without exogenous-N (Control or CK), urea fertilizer as the sole N-source (N) and urea plus CMV (NM). The results revealed higher amounts of total-N, inorganic-N, acid hydrolysable-N and non-acid hydrolysable-N in the soil under NM, followed by N and CK treatments at tillering, booting and maturity stages of rice. A similar trend was observed for various soil ammonia oxidizing bacteria, aerobic and anaerobic bacteria. Correlation coefficients exhibited a negative correlation of residual exogenous-15N with only amino acid nitrogen (P < 0.01). Moreover, low abundance of the key functional gene amoA in rice was found in CK treatment. From the results it can be concluded that the nitrogen from organic source can improve the availability of total-N, inorganic-N and NH4 in the soil, especially at the later stages of rice growth.Zhijian XieChunhuo ZhouFarooq ShahAmjad IqbalGuoRong NiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhijian Xie Chunhuo Zhou Farooq Shah Amjad Iqbal GuoRong Ni The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China
description	Abstract The effect of Chinese Milk Vetch (CMV) residues as a cover crop on the performance of rice plants and nitrogen mobilization and mineralization in paddy soil was evaluated in a pot-culture experiment. Three treatments were included in the trial, i.e. without exogenous-N (Control or CK), urea fertilizer as the sole N-source (N) and urea plus CMV (NM). The results revealed higher amounts of total-N, inorganic-N, acid hydrolysable-N and non-acid hydrolysable-N in the soil under NM, followed by N and CK treatments at tillering, booting and maturity stages of rice. A similar trend was observed for various soil ammonia oxidizing bacteria, aerobic and anaerobic bacteria. Correlation coefficients exhibited a negative correlation of residual exogenous-15N with only amino acid nitrogen (P < 0.01). Moreover, low abundance of the key functional gene amoA in rice was found in CK treatment. From the results it can be concluded that the nitrogen from organic source can improve the availability of total-N, inorganic-N and NH4 in the soil, especially at the later stages of rice growth.
format	article
author	Zhijian Xie Chunhuo Zhou Farooq Shah Amjad Iqbal GuoRong Ni
author_facet	Zhijian Xie Chunhuo Zhou Farooq Shah Amjad Iqbal GuoRong Ni
author_sort	Zhijian Xie
title	The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China
title_short	The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China
title_full	The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China
title_fullStr	The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China
title_full_unstemmed	The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China
title_sort	role of chinese milk vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of south china
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/4655bec072464e8f80a101cfd26151c5
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The role of Chinese Milk Vetch as cover crop in complex soil nitrogen dynamics in rice rotation system of South China

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