Abstract
Field experiments were conducted during three consecutive years to determine the effect of the number of drippers per plant and irrigation frequency on the production, quality and water productivity parameters in ten year old apple trees, cv ‘Golden Delicious’ on rootstock EM9, grown in an intensive system with high-density planting in an alluvial soil of north-eastern Spain. The experiment consisted in applying the same dose of water, determined according the irrigation water needs, through three different agronomic designs (1, 2 and 3 8 Lh-1 pressure-compensating drippers per tree), maintaining a constant irrigation time and varying the irrigation frequency (3, 6 and 9 days on average). No differences were observed among the three treatments for any of the variables analyzed (P<0.05), except for starch index. The lack of differences in production parameters between treatments, can probably be attributed in part to the standardization of the hydric pattern eventually developed in the three designs, due to the same water amount of water applied and also because the formation of a strip of continuous moisture along the crop row caused by the proximity between drippers. In the test conditions, the agronomic design with 1 dripper per tree and 3 days frequency achieved similar yields to those obtained with 2 or 3 drippers and lower irrigation frequencies, thus reducing installation costs
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
The three irrigation designs did not differ in the analyzed variables other than starch index.
- Taxon
- apple
Malus domesticat0 - Treatment
- three treatmentse0
- Outcome
- variables analyzede0
- Direction
- No differencese0
- Qualifier
- except for starch indexe0
- Comparator
- three treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple orchard”
e0“No differences were observed among the three treatments for any of the variables analyzed (P<0.05), except for starch index.”
Claim · model-written summary
Starch index differed among the irrigation treatments.
- Taxon
- appleMalus domesticat0
- Treatment
- three treatmentse0
- Outcome
- starch indexe0
- Comparator
- three treatmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple orchard”
e0“No differences were observed among the three treatments for any of the variables analyzed (P<0.05), except for starch index.”
Claim · model-written summary
The design with one dripper per tree at three day frequency achieved yields similar to designs with two or three drippers and lower irrigation frequencies.
- Taxon
- appleMalus domesticat0
- Treatment
- 1 dripper per tree and 3 days frequencye0
- Outcome
- yieldse0
- Direction
- similare0
- Comparator
- 2 or 3 drippers and lower irrigation frequenciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple orchard”
e0“the agronomic design with 1 dripper per tree and 3 days frequency achieved similar yields to those obtained with 2 or 3 drippers and lower irrigation frequencies”
Claim · model-written summary
The one-dripper design reduced installation costs.
- Taxon
- appleMalus domesticat0
- Treatment
- 1 dripper per tree and 3 days frequencye0
- Outcome
- installation costse0
- Direction
- reducinge0
- Comparator
- 2 or 3 drippers and lower irrigation frequenciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple orchard”
e0“the agronomic design with 1 dripper per tree and 3 days frequency achieved similar yields to those obtained with 2 or 3 drippers and lower irrigation frequencies, thus reducing installation costs”