Organic versus conventional methods of fertilization and weed control in a long term rotation of cereals in semiarid Spain
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Date
2011
Authors
Pardo Sanclemente, GabrielAibar Lete, Joaquín
Ciria, Pilar
Lacasta, Carlos
Lezaún, Juan Antonio
Zaragoza Larios, Carlos
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ArticleAbstract
Under semiarid conditions the response of cereal crops to chemical fertilizers and weed control practices with
herbicides is often reduced. In fact, the economic profitability of agricultural production in many dryland regions is
critically affected by high costs of inputs and low crop yields. As a solution, cropping systems like organic farming,
obtaining similar yields and promoting environmental sustainability by reducing fertilizer and herbicides, could
be an alternative to conventional systems. In this study, 23 trials were performed in five semiarid regions of Spain
during 5 yr to compare different fertilizers and weed control methods on durum wheat (Triticum durum Desf.)
and barley (Hordeum vulgare L.) yields. The following rotation pattern was developed on the experimental plots:
fallow-barley-ground ploughed vetch (Vicia sativa L.)-durum wheat. Plots either received organic fertilizer, chemical
fertilizer, or no fertilizer. In addition, three levels of weed control were applied in cereal plots: flex-tine harrow
tillage, conventional herbicide, and no weeding. The results indicated that neither the fertilization nor the weed
control have effect on the yield crop
Description
Keywords
Sustainability, Ecological agriculture, Crop rotation, Compost, Flex-tine harraw
Bibliographic citation
Gabriel Pardo, Joaquín Aibar, Pilar Ciria, Carlos Lacasta, Juan Antonio Lezaún and Carlos Zaragoza. "Organic versus conventional methods of fertilization and weed control in a long term rotation of cereals in semiarid Spain". Chilean journal of agricultural research (2011), vol. 71, nº 2, p. 187-194
Other field subjects
SostenibilidadAgricultura alternativa
Rotación de cultivos
Aplicación de abonos
Escarda
Cultivos de cereales
Sanidad vegetal