Paper · 1993 · Arid Land Research and Management

Effect of wastewaters on plant growth and soil properties

Ali Al-Jaloud; Ghulam Hussain; Adnan Al-Saati; et al.

19
claims
25
verbatim quotes
20
citations
2
research areas
—
Not open access

Abstract

Abstract Effects of wastewaters on plant growth and soil properties were studied in a pot experiment. Mean biomass ranged from 159 to 210 g per pot for maize and from 165 to 212 g per pot for sorghum in different water salinity treatments. Mean dry matter yield ranged between 28.9 to 38.3 and 34.9 to 50.4 g per pot in different water salinity treatments for maize and sorghum crops, respectively. The crop yield showed significant increase with increase in water salinity. This was presumably due to the nutrients present in wastewaters, especially the nitrogen. Plant yield decreased slightly at water salinity level of 2330 mg L‐1 (TDS), indicating that high water salinity can neutralize the beneficial effects of nutrients in wastewaters. Soil salinity and sodicity increased significantly with corresponding increase in water salinity and sodicity (r values of 0.98 (maize) and 0.98 (sorghum) for soil salinity, and 0.96 (maize) and 0.95 (sorghum) for SAR of soils). The interaction between crop and water treatments was significant for soil salinity (an LSD of 0.48 at p = 0.05) and SAR of soil (an LSD of 2.55 at p = 0.05). Overall, the soil salinity and sodicity was significantly more in sorghum than maize. The results showed that wastewaters can successfully be used to grow corn and sorghum as forage crops, provided 15 to 20% excess water is applied to meet leaching requirements to maintain soil salinity within acceptable limits for optimal agricultural production. Key words: wastewatermaizesorghumsoil salinitysodicity

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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 19

Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize biomass ranged from 159 to 210 g per pot across salinity treatments.

Taxon
maizeZea mayse0
Treatment
water salinity treatmentse0
Outcome
Mean biomasse0
Value
159 to 210 g per pote0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mean biomass ranged from 159 to 210 g per pot for maize and from 165 to 212 g per pot for sorghum in different water salinity treatments.”

✓ located verbatim in the source · abstract, characters 102–239 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum biomass ranged from 165 to 212 g per pot across salinity treatments.

Taxon
sorghumSorghume0
Treatment
water salinity treatmentse0
Outcome
Mean biomasse0
Value
165 to 212 g per pote0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Mean biomass ranged from 159 to 210 g per pot for maize and from 165 to 212 g per pot for sorghum in different water salinity treatments.”

✓ located verbatim in the source · abstract, characters 102–239 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize dry matter yield ranged from 28.9 to 38.3 g per pot.

Taxon
maizeZea mayse0
Treatment
water salinity treatmentse0
Outcome
Mean dry matter yielde0
Value
28.9 to 38.3e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mean dry matter yield ranged between 28.9 to 38.3 and 34.9 to 50.4 g per pot in different water salinity treatments for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 240–398 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum dry matter yield ranged from 34.9 to 50.4 g per pot.

Taxon
sorghumSorghume0
Treatment
water salinity treatmentse0
Outcome
Mean dry matter yielde0
Value
34.9 to 50.4 g per pote0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Mean dry matter yield ranged between 28.9 to 38.3 and 34.9 to 50.4 g per pot in different water salinity treatments for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 240–398 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Maize crop yield significantly increased with water salinity.

Taxon
maizeZea mayse1
Treatment
water salinitye0
Outcome
crop yielde0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The crop yield showed significant increase with increase in water salinity.”

✓ located verbatim in the source · abstract, characters 399–474 · show in text ↑
e1

“for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 356–398 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sorghum crop yield significantly increased with water salinity.

Taxon
sorghumSorghume1
Treatment
water salinitye0
Outcome
crop yielde0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The crop yield showed significant increase with increase in water salinity.”

✓ located verbatim in the source · abstract, characters 399–474 · show in text ↑
e1

“for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 356–398 · show in text ↑
Mechanismhypothesisoriginal resultpositivemeasured

Claim · model-written summary

Wastewater nutrients, especially nitrogen, presumably explained the maize yield benefit.

Taxon
maizeZea mayse1
Compound
nitrogene0
Outcome
crop yielde0
Qualifier
presumablye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The crop yield showed significant increase with increase in water salinity. This was presumably due to the nutrients present in wastewaters, especially the nitrogen.”

✓ located verbatim in the source · abstract, characters 399–564 · show in text ↑
e1

“for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 356–398 · show in text ↑
Mechanismhypothesisoriginal resultpositivemeasured

Claim · model-written summary

Wastewater nutrients, especially nitrogen, presumably explained the sorghum yield benefit.

Taxon
sorghumSorghume1
Compound
nitrogene0
Outcome
crop yielde0
Qualifier
presumablye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The crop yield showed significant increase with increase in water salinity. This was presumably due to the nutrients present in wastewaters, especially the nitrogen.”

✓ located verbatim in the source · abstract, characters 399–564 · show in text ↑
e1

“for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 356–398 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Maize yield slightly decreased at 2330 mg L‐1 TDS water salinity.

Taxon
maizeZea mayse1
Treatment
water salinity level of 2330 mg L‐1 (TDS)e0
Outcome
Plant yielde0
Direction
decreasede0
Qualifier
slightlye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Plant yield decreased slightly at water salinity level of 2330 mg L‐1 (TDS), indicating that high water salinity can neutralize the beneficial effects of nutrients in wastewaters.”

✓ located verbatim in the source · abstract, characters 565–744 · show in text ↑
e1

“for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 356–398 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sorghum yield slightly decreased at 2330 mg L‐1 TDS water salinity.

Taxon
sorghumSorghume1
Treatment
water salinity level of 2330 mg L‐1 (TDS)e0
Outcome
Plant yielde0
Direction
decreasede0
Qualifier
slightlye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Plant yield decreased slightly at water salinity level of 2330 mg L‐1 (TDS), indicating that high water salinity can neutralize the beneficial effects of nutrients in wastewaters.”

✓ located verbatim in the source · abstract, characters 565–744 · show in text ↑
e1

“for maize and sorghum crops, respectively.”

✓ located verbatim in the source · abstract, characters 356–398 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil salinity increased with water salinity in maize pots, with r=0.98.

Treatment
water salinitye0
Outcome
Soil salinitye0
Direction
increasede0
Value
0.98e0
Qualifier
maizee0

Not reportedTaxon

Verbatim

e0

“Soil salinity and sodicity increased significantly with corresponding increase in water salinity and sodicity (r values of 0.98 (maize) and 0.98 (sorghum) for soil salinity, and 0.96 (maize) and 0.95 (sorghum) for SAR of soils).”

✓ located verbatim in the source · abstract, characters 745–973 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil salinity increased with water salinity in sorghum pots, with r=0.98.

Treatment
water salinitye0
Outcome
soil salinitye0
Direction
increasede0
Value
0.98e0
Qualifier
sorghume0

Not reportedTaxon

Verbatim

e0

“Soil salinity and sodicity increased significantly with corresponding increase in water salinity and sodicity (r values of 0.98 (maize) and 0.98 (sorghum) for soil salinity, and 0.96 (maize) and 0.95 (sorghum) for SAR of soils).”

✓ located verbatim in the source · abstract, characters 745–973 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil SAR increased with water sodicity in maize pots, with r=0.96.

Treatment
water salinity and sodicitye0
Outcome
SAR of soilse0
Direction
increasede0
Value
0.96e0
Qualifier
maizee0

Not reportedTaxon

Verbatim

e0

“Soil salinity and sodicity increased significantly with corresponding increase in water salinity and sodicity (r values of 0.98 (maize) and 0.98 (sorghum) for soil salinity, and 0.96 (maize) and 0.95 (sorghum) for SAR of soils).”

✓ located verbatim in the source · abstract, characters 745–973 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil SAR increased with water sodicity in sorghum pots, with r=0.95.

Treatment
water salinity and sodicitye0
Outcome
SAR of soilse0
Direction
increasede0
Value
0.95e0
Qualifier
sorghume0

Not reportedTaxon

Verbatim

e0

“Soil salinity and sodicity increased significantly with corresponding increase in water salinity and sodicity (r values of 0.98 (maize) and 0.98 (sorghum) for soil salinity, and 0.96 (maize) and 0.95 (sorghum) for SAR of soils).”

✓ located verbatim in the source · abstract, characters 745–973 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Crop-by-water treatment interaction significantly affected soil salinity, with LSD 0.48 at p=0.05.

Treatment
interaction between crop and water treatmentse0
Outcome
soil salinitye0
Value
0.48e0
Qualifier
p = 0.05e0

Not reportedTaxonComparatorDirection

Verbatim

e0

“The interaction between crop and water treatments was significant for soil salinity (an LSD of 0.48 at p = 0.05) and SAR of soil (an LSD of 2.55 at p = 0.05).”

✓ located verbatim in the source · abstract, characters 974–1132 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Crop-by-water treatment interaction significantly affected soil SAR, with LSD 2.55 at p=0.05.

Treatment
interaction between crop and water treatmentse0
Outcome
SAR of soile0
Value
2.55e0
Qualifier
p = 0.05e0

Not reportedTaxonComparatorDirection

Verbatim

e0

“The interaction between crop and water treatments was significant for soil salinity (an LSD of 0.48 at p = 0.05) and SAR of soil (an LSD of 2.55 at p = 0.05).”

✓ located verbatim in the source · abstract, characters 974–1132 · show in text ↑
Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil salinity and sodicity were significantly greater under sorghum than maize.

Outcome
soil salinity and sodicitye0
Direction
moree0
Qualifier
sorghume0
Comparator
maizee0

Not reportedTaxon

Verbatim

e0

“Overall, the soil salinity and sodicity was significantly more in sorghum than maize.”

✓ located verbatim in the source · abstract, characters 1133–1218 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Wastewater can grow corn forage provided 15 to 20% excess water meets leaching requirements.

Outcome
grow corn and sorghum as forage cropse0
Qualifier
provided 15 to 20% excess water is applied to meet leaching requirementse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The results showed that wastewaters can successfully be used to grow corn and sorghum as forage crops, provided 15 to 20% excess water is applied to meet leaching requirements to maintain soil salinity within acceptable limits for optimal agricultural production.”

✓ located verbatim in the source · abstract, characters 1219–1482 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Wastewater can grow sorghum forage provided 15 to 20% excess water meets leaching requirements.

Taxon
sorghumSorghume0
Outcome
grow corn and sorghum as forage cropse0
Qualifier
provided 15 to 20% excess water is applied to meet leaching requirementse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The results showed that wastewaters can successfully be used to grow corn and sorghum as forage crops, provided 15 to 20% excess water is applied to meet leaching requirements to maintain soil salinity within acceptable limits for optimal agricultural production.”

✓ located verbatim in the source · abstract, characters 1219–1482 · show in text ↑

salinity · yield · SorghumResults differ

31 papers: 5 positive, 26 negative or no effect

4 papers in the same direction as this paper · 26 in the opposite direction

  1. negative
  2. negative
  3. negative

27 papers more in this group

See all 31 papers →

salinity · yield · Zea mays (maize)Results differ

70 papers: 9 positive, 61 negative or no effect

8 papers in the same direction as this paper · 61 in the opposite direction

  1. no effect
  2. negative
  3. negative

66 papers more in this group

See all 70 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.