Paper · 2021 · Water

Coupling Water Resources and Agricultural Practices for Sorghum in a Semiarid Environment

Ailton Alves de Carvalho; Abelardo A. de A. Montenegro; João L. M. P. de Lima; et al.

6
claims
12
verbatim quotes
24
citations
2
research areas
✓
Open access · cc-by

Abstract

Water scarcity and changing rainfall distribution have caused uncertainties in relation to agricultural production in semiarid areas. In this context, water reuse for irrigation is a promising alternative, although requiring irrigation and agricultural management. Production of forage plants is strategic for semiarid areas due to their high tolerance to stresses and use as animal fodder. The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil. Sorghum was cropped in November 2018, three months before the beginning of the hydrologic year, and cultivated over three cycles until April 2019. The experiment was designed with five irrigation depths (60%, 80%, 100%, 120%, and 140% of crop evapotranspiration), and with four soil cover conditions (0% (witness), soil covered with native vegetation, with coconut coir, and with macerated moringa seeds), adopting four replications. Irrigation with treated wastewater promoted linear increases in forage sorghum yield at irrigation depths of up to 140% of crop evapotranspiration. Mulch promoted a 24% increase in productivity in relation to the area where conservation was not practiced, being able to control salinity while also contributing to the higher incorporation of organic matter. Irrigation with treated wastewater had no negative agronomic impacts on soil, once natural rainfall events typical of the Brazilian semiarid region allowed effective salt leaching from shallow sandy soils.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treated wastewater irrigation gave linear increases in forage sorghum yield up to 140% of crop evapotranspiration.

Taxon
forage sorghume1
Treatment
Irrigation with treated wastewatere1
Outcome
forage sorghum yielde1
Direction
linear increasese1
Qualifier
at irrigation depths of up to 140% of crop evapotranspiratione1
Setting
Northeast Brazile0

Not reportedComparator

Verbatim

e1

“Irrigation with treated wastewater promoted linear increases in forage sorghum yield at irrigation depths of up to 140% of crop evapotranspiration”

✓ located verbatim in the source · abstract, characters 1001–1147 · show in text ↑
e0

“The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil”

✓ located verbatim in the source · abstract, characters 391–565 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mulch raised sorghum productivity by 24% relative to the area where conservation was not practiced.

Taxon
forage sorghume0
Treatment
Mulche2
Outcome
productivitye2
Direction
increasee2
Value
24%e2
Comparator
the area where conservation was not practicede2
Setting
Northeast Brazile0

Verbatim

e2

“Mulch promoted a 24% increase in productivity in relation to the area where conservation was not practiced”

✓ located verbatim in the source · abstract, characters 1149–1255 · show in text ↑
e0

“The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil”

✓ located verbatim in the source · abstract, characters 391–565 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mulch was able to control soil salinity under sorghum cultivation.

Taxon
forage sorghume0
Treatment
Mulche3
Outcome
salinitye3
Direction
decreaseinferrede3
Setting
Northeast Brazile0

Not reportedComparator

Verbatim

e3

“Mulch promoted a 24% increase in productivity in relation to the area where conservation was not practiced, being able to control salinity while also contributing to the higher incorporation of organic matter”

✓ located verbatim in the source · abstract, characters 1149–1357 · show in text ↑
e0

“The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil”

✓ located verbatim in the source · abstract, characters 391–565 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mulch contributed to a higher incorporation of organic matter into the soil under sorghum.

Taxon
forage sorghume0
Treatment
Mulche3
Outcome
incorporation of organic mattere3
Direction
highere3
Setting
Northeast Brazile0

Not reportedComparator

Verbatim

e3

“Mulch promoted a 24% increase in productivity in relation to the area where conservation was not practiced, being able to control salinity while also contributing to the higher incorporation of organic matter”

✓ located verbatim in the source · abstract, characters 1149–1357 · show in text ↑
e0

“The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil”

✓ located verbatim in the source · abstract, characters 391–565 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Treated wastewater irrigation had no negative agronomic impacts on soil.

Taxon
forage sorghume0
Treatment
Irrigation with treated wastewatere4
Outcome
negative agronomic impacts on soile4
Setting
Northeast Brazile0

Not reportedComparatorDirection

Verbatim

e4

“Irrigation with treated wastewater had no negative agronomic impacts on soil, once natural rainfall events typical of the Brazilian semiarid region allowed effective salt leaching from shallow sandy soils”

✓ located verbatim in the source · abstract, characters 1359–1563 · show in text ↑
e0

“The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil”

✓ located verbatim in the source · abstract, characters 391–565 · show in text ↑
Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Natural rainfall allowed effective salt leaching from shallow sandy soils after treated wastewater irrigation.

Taxon
forage sorghume0
Treatment
natural rainfall eventse4
Outcome
effective salt leaching from shallow sandy soilse4
Setting
Northeast Brazile0

Verbatim

e4

“Irrigation with treated wastewater had no negative agronomic impacts on soil, once natural rainfall events typical of the Brazilian semiarid region allowed effective salt leaching from shallow sandy soils”

✓ located verbatim in the source · abstract, characters 1359–1563 · show in text ↑
e0

“The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil”

✓ located verbatim in the source · abstract, characters 391–565 · show in text ↑

mulching · yield · SorghumResults differ

33 papers: 32 positive, 1 negative or no effect

31 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive

29 papers more in this group

See all 33 papers →

irrigation · yield · SorghumPositive and negative results

131 papers: 94 positive, 37 negative or no effect

93 papers in the same direction as this paper · 36 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

127 papers more in this group

See all 131 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.