Abstract
Abstract Saline wastewater from industrial or agricultural sources may be an alternative irrigation supply in arid regions if effective crop and water management strategies for their use are developed. A field experiment was conducted to determine if grain yields of sorghum [ Sorghum bicolor (L.) Moench] irrigated with undiluted saline waste‐water from cooling towers of an electrical power generation plant can be significantly increased by applying nonsaline water at a critical growth stage. The wastewater had an average electrical conductivity (EC) of 0.67 S m −1 and was high in CaSO 4 . Plot studies were conducted for 4 yr using conventional cultural practices and sprinkler irrigation on Tujunga loamy sand—Hanford fine sandy loam soil (mixed, thermic Typic Xeropsamment—coarse‐loamy, mixed, nonacid, thermic Typic Xerorthent). Highest grain yields were obtained from the nonsaline control plots and from treatments that received nonsaline water during either the vegetative or reproductive growth stages. Plant height decreased in response to salinity, and differences between treatments were apparent by 27 d after planting. Plant height and grain yield were both negatively correlated with soil salinity by the 3rd yr of the experiment. Over an extended length of time, the best treatment for maximizing yield and utilizing saline wastewater is the application of nonsaline water early in the season to germinate and establish seedlings, followed by saline water during the grain‐filling stage.
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Claims 4
Claim · model-written summary
Sorghum grain yield was highest in the nonsaline control and in treatments receiving nonsaline water during vegetative or reproductive growth.
- Treatment
- nonsaline water during either the vegetative or reproductive growth stagese1
- Outcome
- grain yieldse1
- Direction
- Higheste1
- Comparator
- nonsaline control plotse1
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum Response to Saline Industrial Cooling Water Applied at Three Growth Stages”
e1“Highest grain yields were obtained from the nonsaline control plots and from treatments that received nonsaline water during either the vegetative or reproductive growth stages”
Claim · model-written summary
Salinity decreased sorghum plant height.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum Response to Saline Industrial Cooling Water Applied at Three Growth Stages”
e2“Plant height decreased in response to salinity”
Claim · model-written summary
Plant height and grain yield of sorghum were negatively correlated with soil salinity by the third year.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum Response to Saline Industrial Cooling Water Applied at Three Growth Stages”
e3“Plant height and grain yield were both negatively correlated with soil salinity by the 3rd yr of the experiment”
Claim · model-written summary
Over the long term, applying nonsaline water early in the season and saline water later is the best strategy for maximizing sorghum yield under saline wastewater.
- Treatment
- the application of nonsaline water early in the season to germinate and establish seedlingse4
- Outcome
- maximizing yielde4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum Response to Saline Industrial Cooling Water Applied at Three Growth Stages”
e4“the best treatment for maximizing yield and utilizing saline wastewater is the application of nonsaline water early in the season to germinate and establish seedlings”
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See all 29 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.