Abstract
The primary goal of all those working in the field of sustainable water management, particularly in the arid and semi-arid zones, is to increase irrigation efficiency, reduce irrigation water losses, and improve water productivity for all crops. This study assessed the automatic irrigation scheduling and irrigation management on the growth, yield, and water productivity of cucumber under greenhouse conditions. A field experiment was conducted using cucumber grown in aplastic greenhouse during the winter of 2017/18 and 2018/19 at the research farm station of the National Research Centre (NRC), El-Noubaria Region, Behaira Governorate, Egypt. In a split-plot experiment, two different methods to control irrigation scheduling (manual control (MC) and automatic control (AC)) were used in the main plots and three deficit irrigation treatments (100% of full irrigation (FI), 80% of FI, and 60% of FI). Through the obtained results, it was found that the use of the automatic control of the irrigation schedule led to an improvement in the productivity and quality characteristics of the cucumber crop. Automatic irrigation control created healthy conditions for the plant roots located under the least water stress. This led to an increase in nitrogen uptake at the ages of 3, 5, 7, and 9 weeks after planting in addition to improving the total leaf area and the chlorophyll content of leaves, which consequently had a greater effect on increasing yield and water productivity of cucumber. Although the highest values of cucumber productivity were obtained with irrigation at 100% of FI, there were no significant differences between 100% FI and 80% of FI, therefore it is preferable to irrigate at 80% of FI, and this means saving 20% of irrigation water that can be used to irrigate other areas. The SALTMED model simulating all of the following evaluation criteria performed well for soil moisture content and N-uptake as well as the leaves area, the yield, and water productivity of cucumber for all treatments for the two growing seasons 2017/18 and 2018/19, with the overall R2 of 0.882, 0.903, 0.975, 0.907, and 0.933, respectively.
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Claims 12
Claim · model-written summary
Automatic irrigation improved cucumber productivity and quality.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- automatic control of the irrigation schedulee0
- Outcome
- productivity and quality characteristicse0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of the automatic control of the irrigation schedule led to an improvement in the productivity and quality characteristics of the cucumber crop.”
Claim · model-written summary
Automatic control increased nitrogen uptake at three, five, seven and nine weeks.
- Taxon
- cucumberCucumis sativust0
- Outcome
- nitrogen uptakee0
- Direction
- increasee0
- Qualifier
- at the ages of 3, 5, 7, and 9 weeks after plantinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This led to an increase in nitrogen uptake at the ages of 3, 5, 7, and 9 weeks after planting”
t0“cucumber”
Claim · model-written summary
Automatic control improved total leaf area and leaf chlorophyll content.
- Taxon
- cucumberCucumis sativust0
- Outcome
- total leaf area and the chlorophyll content of leavese0
- Direction
- improvinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving the total leaf area and the chlorophyll content of leaves”
t0“cucumber”
Claim · model-written summary
Automatic control increased cucumber yield and water productivity.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- yield and water productivitye0
- Direction
- increasinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing yield and water productivity of cucumber”
Claim · model-written summary
Productivity was highest at 100% full irrigation.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- irrigation at 100% of FIe0
- Outcome
- productivitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest values of cucumber productivity were obtained with irrigation at 100% of FI”
Claim · model-written summary
Productivity did not differ significantly between 100% and 80% full irrigation.
- Taxon
- cucumberCucumis sativust0
- Treatment
- 80% of FIe0
- Outcome
- no significant differencese0
- Direction
- no significant differencese0
- Comparator
- 100% FIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between 100% FI and 80% of FI”
t0“cucumber”
Claim · model-written summary
The authors prefer 80% full irrigation, saving 20% of irrigation water.
- Taxon
- cucumberCucumis sativust0
- Outcome
- preferable to irrigate at 80% of FIe0
- Value
- 20% of irrigation watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is preferable to irrigate at 80% of FI, and this means saving 20% of irrigation water”
t0“cucumber”
Claim · model-written summary
SALTMED fit soil moisture with R2 of 0.882.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- soil moisture contente0
- Value
- 0.882e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SALTMED model simulating all of the following evaluation criteria performed well for soil moisture content and N-uptake as well as the leaves area, the yield, and water productivity of cucumber for all treatments for the two growing seasons 2017/18 and 2018/19, with the overall R2 of 0.882, 0.903, 0.975, 0.907, and 0.933, respectively.”
Claim · model-written summary
SALTMED fit nitrogen uptake with R2 of 0.903.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- N-uptakee0
- Value
- 0.903e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SALTMED model simulating all of the following evaluation criteria performed well for soil moisture content and N-uptake as well as the leaves area, the yield, and water productivity of cucumber for all treatments for the two growing seasons 2017/18 and 2018/19, with the overall R2 of 0.882, 0.903, 0.975, 0.907, and 0.933, respectively.”
Claim · model-written summary
SALTMED fit leaf area with R2 of 0.975.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- leaves areae0
- Value
- 0.975e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SALTMED model simulating all of the following evaluation criteria performed well for soil moisture content and N-uptake as well as the leaves area, the yield, and water productivity of cucumber for all treatments for the two growing seasons 2017/18 and 2018/19, with the overall R2 of 0.882, 0.903, 0.975, 0.907, and 0.933, respectively.”
Claim · model-written summary
SALTMED fit yield with R2 of 0.907.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- yielde0
- Value
- 0.907e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SALTMED model simulating all of the following evaluation criteria performed well for soil moisture content and N-uptake as well as the leaves area, the yield, and water productivity of cucumber for all treatments for the two growing seasons 2017/18 and 2018/19, with the overall R2 of 0.882, 0.903, 0.975, 0.907, and 0.933, respectively.”
Claim · model-written summary
SALTMED fit water productivity with R2 of 0.933.
- Taxon
- cucumberCucumis sativuse0
- Outcome
- water productivitye0
- Value
- 0.933e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SALTMED model simulating all of the following evaluation criteria performed well for soil moisture content and N-uptake as well as the leaves area, the yield, and water productivity of cucumber for all treatments for the two growing seasons 2017/18 and 2018/19, with the overall R2 of 0.882, 0.903, 0.975, 0.907, and 0.933, respectively.”
The same questions in other papers
irrigation · quality: general · Cucumis sativus (cucumber)Positive and negative results
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- no effect
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See all 9 papers →irrigation · yield · Cucumis sativus (cucumber)Positive and negative results
52 papers in the same direction as this paper · 16 in the opposite direction · 2 reporting no difference from an alternative
- no effect
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See all 71 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.