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Straw application strategy to optimize nutrient release in a Southeastern China rice cropland
Wang, Weiqi (Fujian Normal University. Institute of Geography)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals)
Wang, Chun (Fujian Normal University. Institute of Geography)
Pan, Ting (Fujian Normal University. Institute of Geography)
Zeng, Congsheng (Fujian Normal University. Institute of Geography)
Lai, Derrick Y.F. (The Chinese University of Hong Kong. Institute of Environment, Energy and Sustainability)
Bartrons Vilamala, Mireia (Centre de Recerca Ecològica i Aplicacions Forestals)
Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals)

Date: 2017
Abstract: The management and improvement of paddy soils fertility are key factors for the future capacity of rice production. The return of rice straw to paddy soils is the best alternative to the application of industrial fertilizers for rice production sustainability. The best strategy for applying rice straw to improve soil nutritional capacity during rice growth has not yet been investigated. We compared straw decomposition in the ditches and ridges in paddy fields subjected to a typical crop management in southeastern China. Straw spread on the ridges provided lower residual straw carbon (C) concentration and mass, lower nitrogen:phosphorus ratio N:P, C:N, and C:P ratios, and lower soil salinity, as well as higher temperature, and higher N- and P-release capacity during the rice crop in comparison to the straw spread in the ditches. Therefore, applying rice straw to the ridges is better strategy than applying it to ditches to enhance rice production.
Note: Número d'acord de subvenció EC/FP7/610028
Note: Número d'acord de subvenció MINECO/CGL2013-48074-P
Note: Número d'acord de subvenció AGAUR/2014/SGR-274
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: article ; recerca ; publishedVersion
Subject: China ; Decomposition ; Habitats ; Nitrogen ; Nutrient release ; Paddy field ; Phosphorus ; Rice straw ; Stoichiometry
Published in: Agronomy, Vol. 7, Issue 4 (December 2017) , art. 84, ISSN 2073-4395

DOI: 10.3390/agronomy7040084


20 p, 1.8 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Research articles
Articles > Published articles

 Record created 2018-01-31, last modified 2018-05-31



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