Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation

ABSTRACT No-tillage and straw returning are important practices for preserving and improving soil quality for the sustainable management system. The experimental field was established in 2007 with conventional tillage (CT), conventional tillage with straw returning (CTS), no-tillage (NT), and no-til...

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Autores principales:	Kubar,Kashif Ali, Huang,Li, Lu,Jianwei, Li,Xiaokun, Xue,Bin, Yin,Zhiyao
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2018
Materias:	Brassica napus conventional tillage no-tillage Oryza sativa soil organic carbon soil water-stable aggregation straw returning
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000200205
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spelling	oai:scielo:S0718-583920180002002052018-08-16Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotationKubar,Kashif AliHuang,LiLu,JianweiLi,XiaokunXue,BinYin,Zhiyao Brassica napus conventional tillage no-tillage Oryza sativa soil organic carbon soil water-stable aggregation straw returning ABSTRACT No-tillage and straw returning are important practices for preserving and improving soil quality for the sustainable management system. The experimental field was established in 2007 with conventional tillage (CT), conventional tillage with straw returning (CTS), no-tillage (NT), and no-tillage with straw returning (NTS) practice in rice (Oryza sativa L.)-rape (Brassica napus L.) cropping system. The soil samples were collected in 2013-2015 from 0-20 and 20-40 cm depth to investigate the effects on soil organic C (SOC), water-stable aggregation (> 5, 5-2, 2-1, 1.0-0.5, 0.25-0.5, and < 0.25 mm), and their stability in paddy soil of the central China. In the last year (2015), the integrative use of no-tillage and straw returning significantly increased SOC content and contribution of the macroaggregates in 0-20 cm and microaggregates in 20-40 cm depth. Compared with CT, SOC content, mean weight diameter (MWD), geometric mean diameter (GMD), and fractal dimensions (FD) under NTS were increased 25%, 21%, 19%, and 12%, respectively, in the 0-20 cm depth. In 20-40 cm depth, the soil micro-aggregates were higher under CTS treatment. Percentages of macroaggregates and microaggregates under NTS were increased 60% and 40% in the 0-20 cm depth. The SOC had positive linear relationship with MWD, GMD, > 5, 2-5, 1-2, and 0.25-0.5 mm aggregates. Thus, long-term combine use of NT with straw returning practices significantly improved SOC and water-stable aggregation. No-tillage and straw returning appeared to be promising and sustainable strategies to conserve SOC sequestration and stable soil aggregates in rice-rape cropping system.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.78 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000200205en10.4067/S0718-58392018000200205
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Brassica napus conventional tillage no-tillage Oryza sativa soil organic carbon soil water-stable aggregation straw returning
spellingShingle	Brassica napus conventional tillage no-tillage Oryza sativa soil organic carbon soil water-stable aggregation straw returning Kubar,Kashif Ali Huang,Li Lu,Jianwei Li,Xiaokun Xue,Bin Yin,Zhiyao Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
description	ABSTRACT No-tillage and straw returning are important practices for preserving and improving soil quality for the sustainable management system. The experimental field was established in 2007 with conventional tillage (CT), conventional tillage with straw returning (CTS), no-tillage (NT), and no-tillage with straw returning (NTS) practice in rice (Oryza sativa L.)-rape (Brassica napus L.) cropping system. The soil samples were collected in 2013-2015 from 0-20 and 20-40 cm depth to investigate the effects on soil organic C (SOC), water-stable aggregation (> 5, 5-2, 2-1, 1.0-0.5, 0.25-0.5, and < 0.25 mm), and their stability in paddy soil of the central China. In the last year (2015), the integrative use of no-tillage and straw returning significantly increased SOC content and contribution of the macroaggregates in 0-20 cm and microaggregates in 20-40 cm depth. Compared with CT, SOC content, mean weight diameter (MWD), geometric mean diameter (GMD), and fractal dimensions (FD) under NTS were increased 25%, 21%, 19%, and 12%, respectively, in the 0-20 cm depth. In 20-40 cm depth, the soil micro-aggregates were higher under CTS treatment. Percentages of macroaggregates and microaggregates under NTS were increased 60% and 40% in the 0-20 cm depth. The SOC had positive linear relationship with MWD, GMD, > 5, 2-5, 1-2, and 0.25-0.5 mm aggregates. Thus, long-term combine use of NT with straw returning practices significantly improved SOC and water-stable aggregation. No-tillage and straw returning appeared to be promising and sustainable strategies to conserve SOC sequestration and stable soil aggregates in rice-rape cropping system.
author	Kubar,Kashif Ali Huang,Li Lu,Jianwei Li,Xiaokun Xue,Bin Yin,Zhiyao
author_facet	Kubar,Kashif Ali Huang,Li Lu,Jianwei Li,Xiaokun Xue,Bin Yin,Zhiyao
author_sort	Kubar,Kashif Ali
title	Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
title_short	Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
title_full	Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
title_fullStr	Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
title_full_unstemmed	Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
title_sort	integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000200205
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Integrative effects of no-tillage and straw returning on soil organic carbón and water stable aggregation under rice-rape rotation

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