Paper · 2011 · PORTO Publications Open Repository TOrino (Politecnico di Torino)

INVESTIGATING OPTIMUM NUMBER OF IRRIGATIONS FOR WHEAT UNDER RAISED BED TECHNOLOGY IN A SEMI-ARID CLIMATE

Muhammad Adnan Shahid; Niaz Ahmad; Muhammad Farrukh Saleem; et al.

10
claims
21
verbatim quotes
3
citations
1
research areas
—
Not open access

Abstract

Water conservation technologies like furrow irrigated raised bed planting are the need of day to improve water productivity and to get more crop production from the available limited water supplies. The present study was conducted at the experimental area of Water Management Research Centre, University of Agriculture, Faisalabad, to perform irrigation scheduling and investigate optimum number of irrigations for wheat under flat sowing and raised bed planting in a semi-arid climate of Faisalabad. Soil type of the area was sandy loam with bulk density of 1.55 g/cm 3 . The experiment was designed in Randomized Complete Block Design with five replicates and three treatments viz. T1: Flat sowing with irrigation at 50% MAD, T2 : Bed planting with irrigation at 50% MAD, and T 3: Bed planting with irrigation on the same day as in T1 . Regular check of soil moisture status was performed and irrigations were applied in first two treatments at about 50% depletion of available water. The irrigations in T3, however, were applied on the same day as in T1, even if the soil moisture content went far below 50% of available water, to check the impact of water stress on crop, if any, under raised bed technology. In this way, four irrigations were applied to T1and T 3 on same dates, whereas five irrigations were applied in T 2 throughout the season. The impacts of increasing number of irrigations in wheat bed planting were evaluated statistically to check the changes in yield and irrigation water productivity. Grain yields under two bed planting treatments were found significantly higher as compared to T1, but at par with each other, while the water saving in comparison to flat sowing decreased from 47.43% in T3to 35.74% in T2 due to an extra irrigation in T 2. Highest irrigation water productivity (1.32 kg/m 3 ) was achieved in T3 , followed by 1.12 kg/m 3 in T2and 0.54 kg/m 3 in T1 . It was concluded that application of an extra irrigation in bed planting resulted in non-significant increase in yield in comparison to bed planting with normal four irrigations, but in a highly significant decrease in irrigation water productivity, indicating that there is no need to apply extra number of irrigations in bed planted wheat in comparison to conventional method

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Claims 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Wheat grain yields under the two bed planting treatments were significantly higher than under flat sowing (T1).

Treatment
two bed planting treatmentse0
Outcome
Grain yieldse0
Direction
highere0
Comparator
T1e0

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 ↗

Verbatim

e0

“Grain yields under two bed planting treatments were found significantly higher as compared to T1”

✓ located verbatim in the source · abstract, characters 1516–1612 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Grain yields of the two bed planting treatments were at par with each other.

Treatment
two bed planting treatmentse0
Outcome
Grain yieldse0
Direction
at pare1
Comparator
each othere1

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 ↗

Verbatim

e0

“Grain yields under two bed planting treatments”

✓ located verbatim in the source · abstract, characters 1516–1562 · show in text ↑
e1

“but at par with each other”

✓ located verbatim in the source · abstract, characters 1614–1640 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Water saving in comparison to flat sowing in T3 was 47.43%.

Treatment
T3e0
Outcome
water savinge0
Value
47.43%e0
Comparator
flat sowinge0

Not reportedDirection

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 ↗

Verbatim

e0

“the water saving in comparison to flat sowing decreased from 47.43% in T3to 35.74% in T2”

✓ located verbatim in the source · abstract, characters 1648–1736 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Water saving in comparison to flat sowing decreased to 35.74% in T2 due to an extra irrigation.

Treatment
T2e0
Outcome
water savinge0
Direction
decreasede0
Value
35.74%e0
Comparator
flat sowinge0

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 ↗

Verbatim

e0

“the water saving in comparison to flat sowing decreased from 47.43% in T3to 35.74% in T2”

✓ located verbatim in the source · abstract, characters 1648–1736 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Highest irrigation water productivity, 1.32 kg/m3, was achieved in T3.

Treatment
T3e0
Outcome
irrigation water productivitye0
Direction
Higheste0
Value
1.32 kg/m 3e0

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 ↗

Verbatim

e0

“Highest irrigation water productivity (1.32 kg/m 3 ) was achieved in T3 , followed by 1.12 kg/m 3 in T2and 0.54 kg/m 3 in T1”

✓ located verbatim in the source · abstract, characters 1772–1896 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Irrigation water productivity in T2 was 1.12 kg/m3, lower than T3.

Treatment
T2e0
Outcome
irrigation water productivitye0
Direction
lowerinferrede0
Value
1.12 kg/m 3e0

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 ↗

Verbatim

e0

“Highest irrigation water productivity (1.32 kg/m 3 ) was achieved in T3 , followed by 1.12 kg/m 3 in T2and 0.54 kg/m 3 in T1”

✓ located verbatim in the source · abstract, characters 1772–1896 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Irrigation water productivity in T1 (flat sowing) was 0.54 kg/m3, lower than T3 and T2.

Treatment
T1e0
Outcome
irrigation water productivitye0
Direction
lowerinferrede0
Value
0.54 kg/m 3e0

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 ↗

Verbatim

e0

“Highest irrigation water productivity (1.32 kg/m 3 ) was achieved in T3 , followed by 1.12 kg/m 3 in T2and 0.54 kg/m 3 in T1”

✓ located verbatim in the source · abstract, characters 1772–1896 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

An extra irrigation in bed planting gave a non-significant increase in yield compared with bed planting with the normal four irrigations.

Treatment
an extra irrigation in bed plantinge0
Outcome
yielde0
Direction
non-significant increasee0
Comparator
bed planting with normal four irrigationse0

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 ↗

Verbatim

e0

“application of an extra irrigation in bed planting resulted in non-significant increase in yield in comparison to bed planting with normal four irrigations”

✓ located verbatim in the source · abstract, characters 1921–2076 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The extra irrigation caused a highly significant decrease in irrigation water productivity compared with bed planting with the normal four irrigations.

Treatment
an extra irrigation in bed plantinge0
Outcome
irrigation water productivitye1
Direction
decreasee1
Comparator
bed planting with normal four irrigationse0

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 ↗

Verbatim

e0

“application of an extra irrigation in bed planting resulted in non-significant increase in yield in comparison to bed planting with normal four irrigations”

✓ located verbatim in the source · abstract, characters 1921–2076 · show in text ↑
e1

“highly significant decrease in irrigation water productivity”

✓ located verbatim in the source · abstract, characters 2087–2147 · show in text ↑
t0

“WHEAT”

✓ located verbatim in the source · title, characters 48–53 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors conclude there is no need to apply extra irrigations in bed planted wheat compared with the conventional method.

Outcome
no need to apply extra number of irrigationse0
Comparator
conventional methode0

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 ↗

Verbatim

e0

“there is no need to apply extra number of irrigations in bed planted wheat in comparison to conventional method”

✓ located verbatim in the source · abstract, characters 2165–2276 · show in text ↑

tillage · physiology: water · Triticum aestivum (wheat)Results differ

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

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

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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.