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Conservation tillage: long term effect on soil and crops under rainfed conditions in south-west Spain (Western Andalusia)

J. Murillo,F. Moreno,I. Girón,M. I. Oblitas

Published 2004 in Spanish Journal of Agricultural Research

ABSTRACT

The effect of long term conservation tillage (CT) application on the stratification ratio (SR) of soil organic carbon (SOC), soil nutrient (P and K) contents, loss of the soil CaCO3 and on the crops performance was studied. The SR was established dividing the SOC content at 0-5 cm and 5-10 cm soil depths by the SOC at deeper depths (10-25 cm and 25-35 cm). Results were compared with those obtained under traditional tillage (TT). The study was conducted in a wheat-sunflower crop rotation established in 1991 under rainfed conditions in south-west Spain; results shown here correspond to the years 2001 (sunflower) and 2002 (wheat). The results show that, under studied conditions, CT improved soil quality by reaching a greater SR (> 2) than that in TT ( 2 indicates better soil quality), decreasing the loss of CaCO3 and increasing the P and K contents at the soil surface (0-5 cm and 5-10 cm). Crop perfor

PUBLICATION RECORD

  • Publication year

    2004

  • Venue

    Spanish Journal of Agricultural Research

  • Publication date

    2004-03-01

  • Fields of study

    Agricultural and Food Sciences, Environmental Science

  • Identifiers
    DOI 10.5424/SJAR/2004021-58
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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