Abstract
Soil salinization commonly prevails in global arid and semi-arid areas, shrinking farmland and endangering ecological, agricultural and social sustainability. Therefore, it is essential to develop effective strategies for salinized soil remediation. In this study, soil samples were collected from Nanliang Farm in Yinchuan, China. Compound microbial strains (CMS) and humic acid (HA) were selected as soil amendments. A total of eight treatments with different application rates of CMS and HA were set up in pot cultivation experiments, where oil sunflower was planted. The results showed that both amendments effectively elevated soil water content and chlorophyll content, as well as multiple physiological indices of sunflower. Meanwhile, they decreased soil total salinity, proline content and malondialdehyde (MDA) content. For single humic acid treatments, Treatment F1 achieved the optimal amelioration effect: it reduced soil total salinity by an average of 24.34%, and increased sunflower plant height, leaf area and aboveground fresh weight by 5.84%, 95.01% and 77.40%, respectively. Among the single CMS treatments, Treatment S3 performed best, with an average reduction of 31.04% in soil total salinity, and increases of 5.66%, 2.85% and 8.16% in plant height, leaf area and aboveground fresh weight correspondingly. Notably, among all eight groups, the control group CK1 exhibited the most prominent improvement effect, which was significantly superior to F1 and S3. This finding suggests that long-term application (one year or more) of CMS can produce an especially strong ameliorative effect on salinized soil.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Both amendments increased soil water and sunflower chlorophyll content and physiological indices.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- both amendmentse0
- Outcome
- soil water content and chlorophyll contente0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both amendments effectively elevated soil water content and chlorophyll content, as well as multiple physiological indices of sunflower”
t0“Oil Sunflower”
Claim · model-written summary
Both amendments decreased soil salinity, proline, and malondialdehyde content.
- Taxon
- Oil Sunflowert0
- Treatment
- theye0
- Outcome
- soil total salinity, proline content and malondialdehyde (MDA) contente0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“they decreased soil total salinity, proline content and malondialdehyde (MDA) content”
t0“Oil Sunflower”
Claim · model-written summary
Humic acid treatment F1 reduced soil total salinity by 24.34%.
- Taxon
- Oil Sunflowert0
- Treatment
- Treatment F1e0
- Outcome
- soil total salinitye0
- Direction
- reducede0
- Value
- 24.34%e0
Not reportedComparator
Verbatim
e0“Treatment F1 achieved the optimal amelioration effect: it reduced soil total salinity by an average of 24.34%”
t0“Oil Sunflower”
Claim · model-written summary
F1 increased sunflower plant height by 5.84%.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 5.84%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased sunflower plant height, leaf area and aboveground fresh weight by 5.84%, 95.01% and 77.40%, respectively”
Claim · model-written summary
F1 increased sunflower leaf area by 95.01%.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- leaf areae0
- Direction
- increasede0
- Value
- 95.01%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased sunflower plant height, leaf area and aboveground fresh weight by 5.84%, 95.01% and 77.40%, respectively”
Claim · model-written summary
F1 increased sunflower aboveground fresh weight by 77.40%.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- aboveground fresh weighte0
- Direction
- increasede0
- Value
- 77.40%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased sunflower plant height, leaf area and aboveground fresh weight by 5.84%, 95.01% and 77.40%, respectively”
Claim · model-written summary
CMS treatment S3 reduced soil salinity by 31.04%.
- Taxon
- Oil Sunflowert0
- Treatment
- Treatment S3e0
- Outcome
- soil total salinitye0
- Direction
- reductione0
- Value
- 31.04%e0
Not reportedComparator
Verbatim
e0“Treatment S3 performed best, with an average reduction of 31.04% in soil total salinity”
t0“Oil Sunflower”
Claim · model-written summary
S3 increased sunflower height by 5.66%.
Not reportedTreatmentComparator
Verbatim
e0“increases of 5.66%, 2.85% and 8.16% in plant height, leaf area and aboveground fresh weight correspondingly”
t0“Oil Sunflower”
Claim · model-written summary
S3 increased sunflower leaf area by 2.85%.
Not reportedTreatmentComparator
Verbatim
e0“increases of 5.66%, 2.85% and 8.16% in plant height, leaf area and aboveground fresh weight correspondingly”
t0“Oil Sunflower”
Claim · model-written summary
S3 increased sunflower aboveground fresh weight by 8.16%.
Not reportedTreatmentComparator
Verbatim
e0“increases of 5.66%, 2.85% and 8.16% in plant height, leaf area and aboveground fresh weight correspondingly”
t0“Oil Sunflower”
Claim · model-written summary
The control CK1 had the strongest improvement, significantly exceeding F1 and S3.
Not reportedMaterial
Verbatim
e0“the control group CK1 exhibited the most prominent improvement effect, which was significantly superior to F1 and S3”
t0“Oil Sunflower”
Claim · model-written summary
The authors suggest CMS application for at least one year can strongly ameliorate salinized soil.
Verbatim
e0“long-term application (one year or more) of CMS can produce an especially strong ameliorative effect on salinized soil”
t0“Oil Sunflower”
The same questions in other papers
other · physiology: pigments · Helianthus annuus (common sunflower)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.