Abstract
While electrical conductivity (EC) and sodium adsorption ratio are commonly used to assess soil salinity, for detecting salinity responses during a growing season, those indicators appear to be insensitive when the soils are already high in salinity. We found that the EC and chloride concentrations in soil extracts from salt-affected greenhouses did not show a significant difference in response to different fertilizations of tomato (with a high N demand and a low susceptibility to salinity) and lettuce (the opposite) over the growing season. The fields had been treated with chemical fertilizers or chemical fertilizers plus manure composts combined with food wastes to investigate salinity enhancement by the amendments. On the other hand, the regression lines between EC and chloride concentration could show differential responses in both soil and plant extracts to the doses and salinities of fertilizers. Therefore, using the relationships between EC and associated ions can provide a better insight into the salinity susceptibilities of soils and plants.
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Claims 4
Claim · model-written summary
Soil-extract EC and chloride concentrations in salt-affected greenhouses showed no significant difference among fertilizations of tomato over the growing season.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- different fertilizationse0
- Outcome
- EC and chloride concentrations in soil extractse0
- Direction
- did not show a significant differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EC and chloride concentrations in soil extracts from salt-affected greenhouses did not show a significant difference in response to different fertilizations of tomato (with a high N demand and a low susceptibility to salinity) and lettuce”
Claim · model-written summary
Soil-extract EC and chloride concentrations in salt-affected greenhouses showed no significant difference among fertilizations of lettuce over the growing season.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- different fertilizationse0
- Outcome
- EC and chloride concentrations in soil extractse0
- Direction
- did not show a significant differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EC and chloride concentrations in soil extracts from salt-affected greenhouses did not show a significant difference in response to different fertilizations of tomato (with a high N demand and a low susceptibility to salinity) and lettuce”
Claim · model-written summary
Regression lines between EC and chloride concentration showed differential responses in both soil and plant extracts to fertilizer doses and salinities.
- Treatment
- doses and salinities of fertilizerse0
- Outcome
- regression lines between EC and chloride concentratione0
Not reportedTaxonDirection
Verbatim
e0“the regression lines between EC and chloride concentration could show differential responses in both soil and plant extracts to the doses and salinities of fertilizers”
Claim · model-written summary
The authors conclude that using relationships between EC and associated ions gives better insight into salinity susceptibilities of soils and plants.
- Outcome
- a better insight into the salinity susceptibilities of soils and plantse0
Not reportedTaxon
Verbatim
e0“using the relationships between EC and associated ions can provide a better insight into the salinity susceptibilities of soils and plants”
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