Abstract
Decision-making on agricultural management in salinization-prone environments requires effective methods of monitoring soil salinity. This is the case in the B-XII irrigation district in Lebrija (Seville), a reclaimed marsh area where a shallow saline water table and intensively irrigated agriculture create a fragile balance between the accumulation and washing of salts in the root zone, which could be disrupted by the introduction of new crops and climatic variations. We evaluated the potential of electromagnetic induction (EMI) for monitoring soil salinity, as well as the effects of salinity on crops under a rotation of tomato, cotton and sugar beet using the NDVI as an indicator. Our results reveal the potential of IEM for mapping and monitoring soil salinity in the B-XIII irrigation district, reflect the negative effects of soil salinity pattern on crops and highlight the importance of ensuring salt washing.