Paper · 2020 · Journal of Soil Sciences and Agricultural Engineering /Journal of Soil Sciences and Agricultural Engineering

Effect of Gypsum, K-Humate and Plant Growth Promoting Bacteria on Improvement of Soil Properties and Productivity of Wheat and Maize Irrigated by Saline Water

Hesham Aboelsoud

12
claims
22
verbatim quotes
3
citations
2
research areas
✓
Open access · cc-by

Abstract

Because of water shortage in North Nile Delta, Egypt, some farmers have to irrigate their crops by saline water. So, soils and/or plants are preferred to be treated by some amendments to alleviate the hazardous effects of salt stress. Two field experiments were conducted at Sakha Agric. Res. Station Farm, Kafr Elsheikh Gov., Egypt, to study the effect of gypsum (50, 75 and 100% of gypsum requirement, 8.2 t ha-1), K-humate (5 and 10 kg ha-1) and inoculation with plant growth-promoting-rhizobacteria (PGPR), (108-109 colony, ml-1) on soil properties and productivity of wheat (2018/19) and maize (2019) irrigated by saline water (0.7 and 2.43 dSm-1). The results revealed that plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity. Also, irrigation water salinity clearly affected soil ECe and ESP, while it slightly affected soil bulk density and total porosity. Also, soil ECe, ESP, bulk density and total porosity were slightly affected by application of gypsum, K-humate and PGPR. The biomass yield, plant height and grain filling in both crops were positively affected by gypsum application, whereas it alleviated the adverse effects of salinity on crop growth. Also, K-humate with PGPR positively affected the crop yield and its attributes. The bio amendments alleviated the harmful effects of salinity stress on both crops. Finally, 100% gypsum combined with higher rate of K-humate and PGPR treatments was more effective treatment on plant growth and alleviated the harmful effects of salinity stress on plant growth.

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

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation water salinity negatively affected grain and straw yields of wheat and maize.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
irrigation water salinitye1
Outcome
grain and straw yieldse1
Direction
negatively affectede1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation water salinity negatively affected plant height and grain filling of wheat and maize.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
irrigation water salinitye1
Outcome
plant height, grain fillinge1
Direction
negatively affectede1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Irrigation water salinity clearly affected soil ECe and ESP.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
irrigation water salinitye2
Outcome
soil ECe and ESPe2

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e2

“irrigation water salinity clearly affected soil ECe and ESP, while it slightly affected soil bulk density and total porosity”

✓ located verbatim in the source · abstract, characters 812–936 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Irrigation water salinity slightly affected soil bulk density and total porosity.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
irrigation water salinitye2
Outcome
bulk density and total porositye2

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e2

“irrigation water salinity clearly affected soil ECe and ESP, while it slightly affected soil bulk density and total porosity”

✓ located verbatim in the source · abstract, characters 812–936 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Gypsum, K-humate and PGPR slightly affected soil ECe and ESP.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
gypsum, K-humate and PGPRe3
Outcome
soil ECe, ESPe3

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e3

“soil ECe, ESP, bulk density and total porosity were slightly affected by application of gypsum, K-humate and PGPR”

✓ located verbatim in the source · abstract, characters 944–1057 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Gypsum, K-humate and PGPR slightly affected soil bulk density and total porosity.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
gypsum, K-humate and PGPRe3
Outcome
bulk density and total porositye3

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e3

“soil ECe, ESP, bulk density and total porosity were slightly affected by application of gypsum, K-humate and PGPR”

✓ located verbatim in the source · abstract, characters 944–1057 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gypsum application positively affected biomass yield, plant height and grain filling in both crops.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
gypsum applicatione4
Outcome
biomass yield, plant height and grain fillinge4
Direction
positively affectede4

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e4

“The biomass yield, plant height and grain filling in both crops were positively affected by gypsum application, whereas it alleviated the adverse effects of salinity on crop growth”

✓ located verbatim in the source · abstract, characters 1059–1239 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gypsum application alleviated the adverse effects of salinity on crop growth.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
gypsum applicatione4
Outcome
crop growthe4
Direction
alleviatede4

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e4

“The biomass yield, plant height and grain filling in both crops were positively affected by gypsum application, whereas it alleviated the adverse effects of salinity on crop growth”

✓ located verbatim in the source · abstract, characters 1059–1239 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

K-humate with PGPR positively affected crop yield and its attributes.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
K-humate with PGPRe5
Outcome
crop yield and its attributese5
Direction
positively affectede5

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e5

“K-humate with PGPR positively affected the crop yield and its attributes”

✓ located verbatim in the source · abstract, characters 1247–1319 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bio amendments alleviated the harmful effects of salinity stress on wheat and maize.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
bio amendmentse6
Outcome
harmful effects of salinity stresse6
Direction
alleviatede6

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e6

“The bio amendments alleviated the harmful effects of salinity stress on both crops”

✓ located verbatim in the source · abstract, characters 1321–1403 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

100% gypsum combined with higher rate of K-humate and PGPR was the more effective treatment on plant growth.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
100% gypsum combined with higher rate of K-humate and PGPRe7
Outcome
plant growthe7
Direction
more effectivee7

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e7

“100% gypsum combined with higher rate of K-humate and PGPR treatments was more effective treatment on plant growth and alleviated the harmful effects of salinity stress on plant growth”

✓ located verbatim in the source · abstract, characters 1414–1598 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

100% gypsum combined with higher rate of K-humate and PGPR alleviated the harmful effects of salinity stress on plant growth.

Taxon
wheat and maizeTriticum aestivumZea mayse1
Treatment
100% gypsum combined with higher rate of K-humate and PGPRe7
Outcome
harmful effects of salinity stress on plant growthe7
Direction
alleviatede7

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“plant height, grain filling, grain and straw yields of wheat and maize were negatively affected by irrigation water salinity”

✓ located verbatim in the source · abstract, characters 680–804 · show in text ↑
e7

“100% gypsum combined with higher rate of K-humate and PGPR treatments was more effective treatment on plant growth and alleviated the harmful effects of salinity stress on plant growth”

✓ located verbatim in the source · abstract, characters 1414–1598 · show in text ↑

lime · growth · Zea mays (maize)Results differ

56 papers: 41 positive, 15 negative or no effect

40 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

52 papers more in this group

See all 56 papers →

salinity · yield · Zea mays (maize)Results differ

70 papers: 9 positive, 61 negative or no effect

60 papers in the same direction as this paper · 9 in the opposite direction

  1. positive
  2. positive
  3. positive

66 papers more in this group

See all 70 papers →

lime · growth · Triticum aestivum (wheat)Positive and negative results

35 papers: 33 positive, 2 negative or no effect

32 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

31 papers more in this group

See all 35 papers →

lime · yield · Triticum aestivum (wheat)Positive and negative results

173 papers: 140 positive, 33 negative or no effect

139 papers in the same direction as this paper · 31 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

169 papers more in this group

See all 173 papers →

lime · yield · Zea mays (maize)Positive and negative results

219 papers: 185 positive, 34 negative or no effect

184 papers in the same direction as this paper · 31 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

215 papers more in this group

See all 219 papers →

salinity · yield · Triticum aestivum (wheat)Positive and negative results

227 papers: 30 positive, 197 negative or no effect

196 papers in the same direction as this paper · 30 in the opposite direction

  1. positive
  2. positive
  3. positive

223 papers more in this group

See all 227 papers →

inoculation · growth · Triticum aestivum (wheat)Positive and negative results

532 papers: 476 positive, 56 negative or no effect

475 papers in the same direction as this paper · 55 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

528 papers more in this group

See all 532 papers →

inoculation · yield · Zea mays (maize)Positive and negative results

538 papers: 479 positive, 59 negative or no effect

478 papers in the same direction as this paper · 52 in the opposite direction · 7 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

534 papers more in this group

See all 538 papers →

8 of 12 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.