Web of Science: 0 cites, Scopus: 1 cites, Google Scholar: cites
Steel slag amendment increases nutrient availability and rice yield in a paddy field in China
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)
Zeng, Congshenz (Fujian Normal University. Institute of Geography)
Tong, Chuan (Fujian Normal University. Institute of Geography)
Bartrons Vilamala, Mireia (Centre de Recerca Ecològica i Aplicacions Forestals)
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)

Títol variant: Steel slag improves soil fertility and rice yield
Data: 2018
Resum: Rice is the main food for most of the human population, so sustainable rice production is very important for food security. The fertility of the soil in paddy fields is the key factor controlling rice growth and production. Steel slag amendment is becoming an effective method to increase the soil fertility, stabilize rice production and reduce greenhouse-gas emissions in Asiatic paddy fields (i. e. Korea, Japan, Bangladesh and China). We studied the relationships of steel slag amendment with plant–soil nutrient allocation, stoichiometry and rice yield in a paddy field in subtropical China. Amendment was associated with higher soil N and P availability, lower available-N:available-P ratio and higher available Ca and Si concentrations. Increases in P, Ca and Mg availability were correlated with high yields. High yields under steel slag amendment were also associated with high foliar and stem N and P concentrations and lower N:P ratios and with high shoot/root N and P concentration ratios, traits that are typically associated with productive ecosystems able to support species with high growth rates. The positive correlation between steel slag application and yield was partially due to an indirect effect (35% of the total effect) of enhancement of soil Ca, Si and P availability, which were positively correlated with yield. Steel slag amendment in this paddy field increased plant growth and yield by enhancing nutrient availability, altering soil and plant stoichiometry and shifting stem:root nutrient allocation.
Nota: Número d'acord de subvenció EC/FP7/610028
Nota: Número d'acord de subvenció MINECO/CGL2016-79836-P
Nota: Número d'acord de subvenció AGAUR/2014/SGR-274
Drets: Tots els drets reservats
Llengua: Anglès.
Document: article ; recerca ; acceptedVersion
Matèria: Nitrogen ; N:P ; Phosphorus ; Soil ; Stoichiometry
Publicat a: Experimental agriculture, Vol. 54, issue 6 (Dec. 2018) , p. 842-856, ISSN 0014-4797

DOI: 10.1017/S0014479717000412


Post-print
44 p, 1.5 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Articles de recerca
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 Registre creat el 2017-09-13, darrera modificació el 2019-02-11



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