Memorias de investigación
Artículos en revistas:
Soil P and cation availability and crop uptake in a forage rotation under conventional and reduced tillage
Año:2014
Áreas de investigación
  • Agricultura
Datos
Descripción
Long-term conservation tillage can modify vertical distribution of nutrients in soil profiles and alter nutrient availability and yields of crops. This study aimed to evaluate the effect of 14 years of conventional (CT) and reduced tillage (RT) on soil macronutrient availability (0-5, 5-15, 15-30 cm) and uptake by Italian ryegrass and maize in a forage rotation under a temperate-humid climate (NW Spain). Soil contents of total C, plant available Ca, Mg, Na, K and P and their uptake by plants were evaluated over two years. The three-way ANOVA showed that tillage and its interactions with soil depth and sampling date have little influence on soil C and macronutrients contents (< 13% of variance explained). In the topsoil layer, all studied variables (except K) increased in RT compared with CT, but they remained unchanged (C, Ca and Na) or decreased (Mg, K and P) in deeper layers. Crop yields were greater with RT than CT during the year with soil water deficit periods, while limited tillage effect was found in the other year. Whereas no differences were obtained for maize, nutrient concentration (Mg, Na, K and P) in ryegrass increased under RT. Conservation tillage improved surface soil fertility, maize yield and ryegrass nutrient content.
Internacional
Si
JCR del ISI
Si
Título de la revista
Soil Use And Management
ISSN
0266-0032
Factor de impacto JCR
1,968
Información de impacto
Volumen
30
DOI
Número de revista
Desde la página
445
Hasta la página
453
Mes
SIN MES
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Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Contaminación de agroecosistemas por las prácticas agrícolas
  • Departamento: Química y Tecnología de Alimentos