Abstract
Water stress is one of the main limiting factors for soybean crop development, and it may increase due to subsurface soil acidity. The use of agricultural gypsum is a way to improve the soil’s chemical conditions at depth and mitigate the undesirable effects caused by water restriction during drought periods. This study aimed to evaluate whether gypsum application increases soybean yield in water restriction conditions. The experiment was implemented in 2018 in a Humic Cambisol, Southern Brazil. The treatments consisted of two gypsum management procedures (with 1.4 Mg ha-1 and without application) associated with two water conditions (with and without water restriction). The water conditions were promoted by partially covering the soil with plastic tarpaulin sheets, and the of agricultural gypsum used was 1,400 kg ha-1. Soybean was grown in the crop years 2018/19 and 2019/20 to assess root attributes and yield and were analyzed soil’s chemical characteristics. Water restriction reduced soybean yield by 11.4 and 36.8% in the 2018/19 and 2019/20 harvests, respectively, whereas there was no response to gypsum application. The plants’ root system was not affected by the water conditions or gypsum management. It was concluded that water restriction reduces soybean yield, and agricultural gypsum does not mitigate such loss under de evaluated conditions, even though it positively changes some soil chemical parameters.
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 7
Claim · model-written summary
Water restriction reduced soybean yield by 11.4% in the 2018/19 harvest compared with no water restriction.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Water restrictione0
- Outcome
- soybean yielde0
- Direction
- reducede0
- Value
- 11.4e0
- Qualifier
- 2018/19e0
- Comparator
- without water restrictione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water restriction reduced soybean yield by 11.4 and 36.8% in the 2018/19 and 2019/20 harvests”
e1“without water restriction”
Claim · model-written summary
Water restriction reduced soybean yield by 36.8% in the 2019/20 harvest compared with no water restriction.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Water restrictione0
- Outcome
- soybean yielde0
- Direction
- reducede0
- Value
- 36.8%e0
- Qualifier
- 2019/20e0
- Comparator
- without water restrictione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water restriction reduced soybean yield by 11.4 and 36.8% in the 2018/19 and 2019/20 harvests”
e1“without water restriction”
Claim · model-written summary
Gypsum application produced no response in soybean yield compared with no gypsum.
- Taxon
- soybeanGlycine maxe0
- Treatment
- gypsum applicatione0
- Outcome
- soybean yielde0
- Direction
- no responsee0
- Comparator
- without applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water restriction reduced soybean yield by 11.4 and 36.8% in the 2018/19 and 2019/20 harvests, respectively, whereas there was no response to gypsum application”
e1“without application”
Claim · model-written summary
The soybean root system was not affected by water conditions.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- water conditionse0
- Outcome
- root systeme0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants’ root system was not affected by the water conditions or gypsum management”
t0“Soybean”
Claim · model-written summary
The soybean root system was not affected by gypsum management.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- gypsum managemente0
- Outcome
- root systeme0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants’ root system was not affected by the water conditions or gypsum management”
t0“Soybean”
Claim · model-written summary
Agricultural gypsum did not mitigate the soybean yield loss caused by water restriction under the evaluated conditions.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- agricultural gypsume0
- Outcome
- such losse0
- Direction
- does not mitigatee0
- Qualifier
- under de evaluated conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agricultural gypsum does not mitigate such loss under de evaluated conditions”
t0“Soybean”
Claim · model-written summary
Agricultural gypsum positively changed some soil chemical parameters.
Not reportedTaxonComparator
Verbatim
e0“agricultural gypsum does not mitigate such loss under de evaluated conditions, even though it positively changes some soil chemical parameters”
The same questions in other papers
lime · growth · Glycine max (soybean)Results differ
4 papers in the same direction as this paper · 29 in the opposite direction
- positive
- negative
- positive
30 papers more in this group
See all 34 papers →lime · yield · Glycine max (soybean)Positive and negative results
32 papers in the same direction as this paper · 108 in the opposite direction
- positive
- positive
- positive
137 papers more in this group
See all 141 papers →drought · yield · Glycine max (soybean)Positive and negative results
178 papers in the same direction as this paper · 35 in the opposite direction
- positive
- positive
- positive
210 papers more in this group
See all 214 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.