Abstract
ABSTRACT Vegetables intercropping of results in a better use of natural resources, water, light, and nutrients, when properly managed. The objective of this work was to evaluate the performance of lettuce and radish in single crop and intercropping systems under different irrigation water depths. The experiment was conducted in a protected environment at the State University of Maringá, in Maringá, Paraná, Brazil. A randomized block experimental design was used in a 4×2 factorial arrangement, with four replications. The first factor consisted of four irrigation water depths (60%, 80%, 100%, and 120% ETc), and the second factor consisted of two crop systems (single crop and intercrop). A drip irrigation system was used, consisting of constant water table lysimeters. The variables evaluated were: shoot fresh weight, root dry weight, and leaf area for the lettuce crop; total fresh weight, root fresh weight, and root diameter for the radish crop; and yield, water use efficiency, and land use efficiency index for both crops. Shoot fresh weight, leaf area, and yield of lettuce, and total fresh weight, root fresh weight, and yield of radish increased as the irrigation water depth applied was increased. Total fresh weight, root fresh weight, root diameter, and yield of the radish crop were higher in the intercropping system. The water use efficiency of both crops was higher in the single crop, and the land use efficiency index was higher in the intercropping system.
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Claims 5
Claim · model-written summary
Lettuce shoot fresh weight, leaf area and yield increased with irrigation depth.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- irrigation water depthe0
- Outcome
- Shoot fresh weight, leaf area, and yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Shoot fresh weight, leaf area, and yield of lettuce, and total fresh weight, root fresh weight, and yield of radish increased as the irrigation water depth applied was increased.”
Claim · model-written summary
Radish total and root fresh weight and yield increased with irrigation depth.
- Taxon
- radish
Raphanus sativuse0 - Treatment
- irrigation water depthe0
- Outcome
- total fresh weight, root fresh weight, and yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Shoot fresh weight, leaf area, and yield of lettuce, and total fresh weight, root fresh weight, and yield of radish increased as the irrigation water depth applied was increased.”
Claim · model-written summary
Radish total fresh weight, root fresh weight, diameter and yield were higher in intercrops.
- Taxon
- radish
Raphanus sativuse0 - Treatment
- intercropping systeme0
- Outcome
- Total fresh weight, root fresh weight, root diameter, and yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Total fresh weight, root fresh weight, root diameter, and yield of the radish crop were higher in the intercropping system.”
Claim · model-written summary
Water use efficiency of both crops was higher in single crops.
Verbatim
e0“The water use efficiency of both crops was higher in the single crop, and the land use efficiency index was higher in the intercropping system.”
Claim · model-written summary
Land use efficiency was higher in intercropping.
Verbatim
e0“The water use efficiency of both crops was higher in the single crop, and the land use efficiency index was higher in the intercropping system.”
The same questions in other papers
irrigation · yield · Raphanus sativus (radish)Positive and negative results
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- no effect
- negative
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See all 8 papers →irrigation · yield · Lactuca sativa (garden lettuce)Positive and negative results
31 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- no effect
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See all 57 papers →intercropping · yield · Raphanus sativus (radish)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
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See all 8 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.