Abstract
ABSTRACT The evaluation of the yield of crops and their efficiency of use of water and nitrogen is essential to optimize the management of production factors. The objective of this study is to evaluate the effect of irrigation regimes and nitrogen doses in fertigation on fruit yield and efficiency of use of water and nitrogen by the Top Gun watermelon hybrid. The study was conducted in Bom Jesus, Piauí, Brazil, from August 4 to October 15, 2015. The study used a completed randomized block design with four repetitions, five irrigation depths (110.17, 156.86, 221.16, 268.87, and 317.09 mm), and five doses of nitrogen in fertigation (0, 50, 100, 150, and 200 kg ha-1 applied as urea). Fruit yield and water use efficiency were not affected by nitrogen doses; however, there was a significant interaction of the factors for the efficiency of nitrogen use. The highest yield (39,549.45 kg ha-1) was obtained using 233.48 mm of water during the growth cycle. The water depth that promoted the maximum efficiency of water use was 110.42 mm, and nitrogen use was most efficient using 232.21 mm of water and 50 kg ha-1 of nitrogen.
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Claims 5
Claim · model-written summary
Nitrogen dose did not affect watermelon fruit yield or water-use efficiency.
- Taxon
- WATERMELON
Citrullus lanatust0 - Treatment
- nitrogen dosese0
- Outcome
- Fruit yield and water use efficiencye0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit yield and water use efficiency were not affected by nitrogen doses;”
t0“WATERMELON”
Claim · model-written summary
Irrigation depth and nitrogen dose interacted significantly for watermelon nitrogen-use efficiency.
- Taxon
- WATERMELONCitrullus lanatust0
- Treatment
- the factorse0
- Outcome
- efficiency of nitrogen usee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“however, there was a significant interaction of the factors for the efficiency of nitrogen use.”
t0“WATERMELON”
Claim · model-written summary
Watermelon yield peaked at 39,549.45 kg ha-1 with 233.48 mm of water.
- Taxon
- WATERMELONCitrullus lanatust0
- Treatment
- 233.48 mm of watere0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 39,549.45 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield (39,549.45 kg ha-1) was obtained using 233.48 mm of water during the growth cycle.”
t0“WATERMELON”
Claim · model-written summary
Water-use efficiency was maximal at a water depth of 110.42 mm.
- Taxon
- WATERMELONCitrullus lanatust0
- Treatment
- 110.42 mme0
- Outcome
- efficiency of water usee0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water depth that promoted the maximum efficiency of water use was 110.42 mm, and nitrogen use was most efficient using 232.21 mm of water and 50 kg ha-1 of nitrogen.”
t0“WATERMELON”
Claim · model-written summary
Nitrogen use was most efficient with 232.21 mm water and 50 kg ha-1 nitrogen.
- Taxon
- WATERMELONCitrullus lanatust0
- Treatment
- 232.21 mm of water and 50 kg ha-1 of nitrogene0
- Outcome
- nitrogen usee0
- Direction
- most efficiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen use was most efficient using 232.21 mm of water and 50 kg ha-1 of nitrogen.”
t0“WATERMELON”