Effects of topsoil loss on wheat productivity in dryland zones of Chile

Considering that the most important processes of biogeochemical cycles occur in the upper first centimetres of the soil, minor degrees of erosion may affect crop productivity, especially in the case of low input dryfarming production systems, which dominate the central coastal areas of Chile. The pu...

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Autores principales:	Brunel,N, Meza,F, Ros,R, Santibáñez,F
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2011
Materias:	soil erosion topsoil depth desurfacing Mediterranean climate
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162011000400010
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spelling	oai:scielo:S0718-951620110004000102018-10-31Effects of topsoil loss on wheat productivity in dryland zones of ChileBrunel,NMeza,FRos,RSantibáñez,F soil erosion topsoil depth desurfacing Mediterranean climate Considering that the most important processes of biogeochemical cycles occur in the upper first centimetres of the soil, minor degrees of erosion may affect crop productivity, especially in the case of low input dryfarming production systems, which dominate the central coastal areas of Chile. The purpose of this study was to evaluate the effect of topsoil loss on wheat productivity in dryfarming areas with Mediterranean climates in Central Chile. The experiment was conducted on a Chilean Alfisol (Pencahue; 35°18'53"S and 71°53'40"W), and the topsoil of this soil was progressively removed from a depth of 2 to 18 cm (2, 6, 10, 14 and 18 cm). Once the plots (25 m²) were prepared, winter wheat (Triticum aestivum L.; cultivar Pandora-INIA) was sown by applying the traditional techniques of the zone. A design was established on randomised blocks with six treatments and three replications. After one growing season, the results showed significant differences (p<0.05) in grain yield (kg ha-1) between the control treatment (T0) and the treatment with 18 cm of soil removed (T18) with productivity decreasing by 35%. Furthermore, most of the considered productivity parameters were negatively correlated with the depth of soil removed. The results highlighted the importance of topsoil fertility and depth in crop yield.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.11 n.4 20112011-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162011000400010en10.4067/S0718-95162011000400010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	soil erosion topsoil depth desurfacing Mediterranean climate
spellingShingle	soil erosion topsoil depth desurfacing Mediterranean climate Brunel,N Meza,F Ros,R Santibáñez,F Effects of topsoil loss on wheat productivity in dryland zones of Chile
description	Considering that the most important processes of biogeochemical cycles occur in the upper first centimetres of the soil, minor degrees of erosion may affect crop productivity, especially in the case of low input dryfarming production systems, which dominate the central coastal areas of Chile. The purpose of this study was to evaluate the effect of topsoil loss on wheat productivity in dryfarming areas with Mediterranean climates in Central Chile. The experiment was conducted on a Chilean Alfisol (Pencahue; 35°18'53"S and 71°53'40"W), and the topsoil of this soil was progressively removed from a depth of 2 to 18 cm (2, 6, 10, 14 and 18 cm). Once the plots (25 m²) were prepared, winter wheat (Triticum aestivum L.; cultivar Pandora-INIA) was sown by applying the traditional techniques of the zone. A design was established on randomised blocks with six treatments and three replications. After one growing season, the results showed significant differences (p<0.05) in grain yield (kg ha-1) between the control treatment (T0) and the treatment with 18 cm of soil removed (T18) with productivity decreasing by 35%. Furthermore, most of the considered productivity parameters were negatively correlated with the depth of soil removed. The results highlighted the importance of topsoil fertility and depth in crop yield.
author	Brunel,N Meza,F Ros,R Santibáñez,F
author_facet	Brunel,N Meza,F Ros,R Santibáñez,F
author_sort	Brunel,N
title	Effects of topsoil loss on wheat productivity in dryland zones of Chile
title_short	Effects of topsoil loss on wheat productivity in dryland zones of Chile
title_full	Effects of topsoil loss on wheat productivity in dryland zones of Chile
title_fullStr	Effects of topsoil loss on wheat productivity in dryland zones of Chile
title_full_unstemmed	Effects of topsoil loss on wheat productivity in dryland zones of Chile
title_sort	effects of topsoil loss on wheat productivity in dryland zones of chile
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162011000400010
work_keys_str_mv	AT bruneln effectsoftopsoillossonwheatproductivityindrylandzonesofchile AT mezaf effectsoftopsoillossonwheatproductivityindrylandzonesofchile AT rosr effectsoftopsoillossonwheatproductivityindrylandzonesofchile AT santibanezf effectsoftopsoillossonwheatproductivityindrylandzonesofchile
_version_	1714206423862214656

Effects of topsoil loss on wheat productivity in dryland zones of Chile

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