Abstract
Increasing soil salinity represents a major constraint for agriculture in arid and semi-arid lands, where mineral nitrogen (N) deficiency is also a frequent characteristic of soils. Biological N fixation by legumes may constitute a sustainable alternative to chemical fertilisation in salinity-affected areas, provided that adapted cultivars and inoculants are available. Here, the performance of three peanut cultivars nodulated with two different rhizobial strains that differ in their salt tolerance was evaluated under moderately saline water irrigation and compared with that of N-fertilised plants. Shoot weight was used as an indicator of yield. Under non-saline conditions, higher yields were obtained using N fertilisation rather than inoculation for all the varieties tested. However, under salt stress, the yield of inoculated plants became comparable to that of N-fertilised plants, with minor differences depending on the peanut cultivar and rhizobial strain. Our results indicate that N fixation might represent an economical, competitive and environmentally friendly choice with respect to mineral N fertilisation for peanut cultivation under moderate saline conditions.
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Claims 3
Claim · model-written summary
Under nonsaline conditions nitrogen fertilisation gave higher peanut yields than rhizobial inoculation across varieties.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- N fertilisatione0
- Outcome
- yieldse0
- Direction
- highere0
- Qualifier
- non-saline conditionse0
- Comparator
- inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under non-saline conditions, higher yields were obtained using N fertilisation rather than inoculation for all the varieties tested”
t0“peanut”
Claim · model-written summary
Under salt stress inoculated peanut yield became comparable to nitrogen-fertilised yield, with minor cultivar and strain differences.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- inoculatede0
- Outcome
- yielde0
- Direction
- comparablee0
- Qualifier
- under salt stresse0
- Comparator
- N-fertilised plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under salt stress, the yield of inoculated plants became comparable to that of N-fertilised plants, with minor differences depending on the peanut cultivar and rhizobial strain”
t0“peanut”
Claim · model-written summary
The authors propose nitrogen fixation as an economical, competitive and environmentally friendly choice for peanut under moderate salinity.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- N fixatione0
- Qualifier
- under moderate saline conditionse0
- Comparator
- mineral N fertilisatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fixation might represent an economical, competitive and environmentally friendly choice with respect to mineral N fertilisation for peanut cultivation under moderate saline conditions”
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See all 683 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.