Abstract
Throughout the last decade, and particularly in 2022, water scarcity has become a critical concern in Morocco and other Mediterranean countries. The lack of rainfall during spring was worsened by a succession of heat waves during the summer. To address this drought, innovative solutions, including the use of new technologies such as hydrogels, will be essential to transform agriculture. This paper presents the findings of a study that evaluated the impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco. The treatments investigated in this study comprised two different types of hydrogel-based soil additives (Arbovit® polyacrylate and Huminsorb® polyacrylate), applied at two rates (30 and 20 kg/ha), and irrigated at two levels of water supply (100% and 50% of daily crop evapotranspiration; ETc). Two control treatments were included, without hydrogel application and with both water amounts. The experiment was conducted in an open field using a completely randomized design. The results indicated a significant impact of both hydrogel-type dose and water dose on onion plant growth, as evidenced by various vegetation parameters. Among the hydrogels tested, Huminsorb® Polyacrylate produced the most favorable outcomes, with treatment T9 (100%, HP, 30 kg/ha) yielding 70.55 t/ha; this represented an increase of 11 t/ha as compared to the 100% ETc treatment without hydrogel application. Moreover, the combination of hydrogel application with 50% ETc water stress showed promising results, with treatment T4 (HP, 30 kg, 50%) producing almost the same yield as the 100% ETc treatment without hydrogel while saving 208 mm of water.
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Claims 6
Claim · model-written summary
Hydrogel type and dose, and water dose, had a significant impact on onion plant growth.
- Taxon
- onion
Allium cepae3 - Treatment
- hydrogel-type dose and water dosee1
- Outcome
- onion plant growthe1
- Setting
- Meknes, Moroccoe3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“The results indicated a significant impact of both hydrogel-type dose and water dose on onion plant growth, as evidenced by various vegetation parameters”
e3“impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco”
Claim · model-written summary
Huminsorb Polyacrylate gave the most favorable outcomes among the hydrogels tested.
- Taxon
- onion
Allium cepae3 - Treatment
- Huminsorb® Polyacrylatee1
- Outcome
- the most favorable outcomese1
- Direction
- most favorablee1
- Comparator
- the hydrogels testede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Among the hydrogels tested, Huminsorb® Polyacrylate produced the most favorable outcomes, with treatment T9 (100%, HP, 30 kg/ha) yielding 70.55 t/ha”
e3“impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco”
Claim · model-written summary
Treatment T9 (100%, HP, 30 kg/ha) yielded 70.55 t/ha of onion.
- Taxon
- onion
Allium cepae3 - Treatment
- T9 (100%, HP, 30 kg/ha)e1
- Outcome
- yielde1
- Value
- 70.55 t/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Among the hydrogels tested, Huminsorb® Polyacrylate produced the most favorable outcomes, with treatment T9 (100%, HP, 30 kg/ha) yielding 70.55 t/ha”
e3“impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco”
Claim · model-written summary
Treatment T9 (100%, HP, 30 kg/ha) increased onion yield by 11 t/ha over the 100% ETc treatment without hydrogel.
- Taxon
- onion
Allium cepae3 - Treatment
- T9 (100%, HP, 30 kg/ha)e1
- Outcome
- yielde1
- Direction
- increasee2
- Value
- 11 t/hae2
- Comparator
- 100% ETc treatment without hydrogel applicatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Among the hydrogels tested, Huminsorb® Polyacrylate produced the most favorable outcomes, with treatment T9 (100%, HP, 30 kg/ha) yielding 70.55 t/ha”
e2“this represented an increase of 11 t/ha as compared to the 100% ETc treatment without hydrogel application”
e3“impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco”
Claim · model-written summary
Hydrogel with 50% ETc gave almost the same onion yield as full irrigation without hydrogel.
- Taxon
- onion
Allium cepae2 - Treatment
- hydrogel application with 50% ETc water stresse1
- Outcome
- yielde1
- Direction
- no_changeinferrede1
- Qualifier
- almost the samee1
- Comparator
- 100% ETc treatment without hydrogele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“the combination of hydrogel application with 50% ETc water stress showed promising results, with treatment T4 (HP, 30 kg, 50%) producing almost the same yield as the 100% ETc treatment without hydrogel while saving 208 mm of water”
e2“impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco”
Claim · model-written summary
Hydrogel with 50% ETc saved 208 mm of water relative to full irrigation without hydrogel.
- Taxon
- onion
Allium cepae2 - Treatment
- hydrogel application with 50% ETc water stresse1
- Outcome
- watere1
- Direction
- decreaseinferrede1
- Value
- 208 mme1
- Comparator
- 100% ETc treatment without hydrogele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“the combination of hydrogel application with 50% ETc water stress showed promising results, with treatment T4 (HP, 30 kg, 50%) producing almost the same yield as the 100% ETc treatment without hydrogel while saving 208 mm of water”
e2“impact of hydrogel application on onion (Allium cepa) cultivation in Meknes, Morocco”
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See all 48 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.