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Drip irrigation with nanobubble oxygenated treated wastewater improves soil aeration
Year:
2022
Source of publication :
Scientia Horticulturae
Authors :
Baram, Shahar
;
.
Ben-Hur, Meni
;
.
Berezkin, Anna
;
.
Bernstein, Nirit
;
.
Sade, Yael
;
.
Volume :
291
Co-Authors:

Shahar Baram
Maya Weinstein
Jacob F Evans
Anna Berezkin
Yael Sade
Meni Ben-Hur
Nirit Bernstein
Hadas Mamane

Facilitators :
From page:
1
To page:
8
(
Total pages:
8
)
Abstract:

Long-term drip irrigation with treated wastewater (TWW) is known to enhance oxygen deficiency (hypoxia), especially in fine-textured soils. Hypoxia conditions around plant roots negatively affect growth and yield. Experiments were conducted to evaluate the response of lettuce grown in well-aerated (sandy) and poorly aerated (clayey) soils to surface and subsurface drip irrigation with nanobubbles oxygenated TWW (ONB-TWW). Oxygen mass balances show that irrigation with ONB-TWW supplied about 1% of the daily Osingle bondCO2 emissions. Nevertheless, our results show that both surface and subsurface drip irrigation with ONB-TWW increased the lettuce yield regardless of the soil type or the amount of oxygen added to the soil out of the daily oxygen consumption in it. Irrigation with ONB-TWW significantly reduced membrane leakage and osmotic potential in the roots and leaves in both well-aerated and poorly aerated soils, concomitantly improving root viability and chlorophyll content in the leaves of the plants grown in the poorly aerated clayey soil. The results suggest that drip irrigation with ONB-TWW, should be considered as a viable method to improve oxygen availability in soils and to alleviate soil hypoxia. Further study is needed to elucidate the mechanisms by which ONB promote plant health and growth.

Note:
Related Files :
clayey soils
oxygenation
rhizosphere
sandy soil
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Related Content
More details
DOI :
10.1016/j.scienta.2021.110550
Article number:
110550
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
56411
Last updated date:
02/03/2022 17:27
Creation date:
03/10/2021 16:51
Scientific Publication
Drip irrigation with nanobubble oxygenated treated wastewater improves soil aeration
291

Shahar Baram
Maya Weinstein
Jacob F Evans
Anna Berezkin
Yael Sade
Meni Ben-Hur
Nirit Bernstein
Hadas Mamane

Drip irrigation with nanobubble oxygenated treated wastewater improves soil aeration

Long-term drip irrigation with treated wastewater (TWW) is known to enhance oxygen deficiency (hypoxia), especially in fine-textured soils. Hypoxia conditions around plant roots negatively affect growth and yield. Experiments were conducted to evaluate the response of lettuce grown in well-aerated (sandy) and poorly aerated (clayey) soils to surface and subsurface drip irrigation with nanobubbles oxygenated TWW (ONB-TWW). Oxygen mass balances show that irrigation with ONB-TWW supplied about 1% of the daily Osingle bondCO2 emissions. Nevertheless, our results show that both surface and subsurface drip irrigation with ONB-TWW increased the lettuce yield regardless of the soil type or the amount of oxygen added to the soil out of the daily oxygen consumption in it. Irrigation with ONB-TWW significantly reduced membrane leakage and osmotic potential in the roots and leaves in both well-aerated and poorly aerated soils, concomitantly improving root viability and chlorophyll content in the leaves of the plants grown in the poorly aerated clayey soil. The results suggest that drip irrigation with ONB-TWW, should be considered as a viable method to improve oxygen availability in soils and to alleviate soil hypoxia. Further study is needed to elucidate the mechanisms by which ONB promote plant health and growth.

Scientific Publication
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