Abstract
Irrigation of plants by contaminated water with metals is very common in countries facing freshwater scarcity. To enhance plant growth via improved absorption of essential metals including Zn from wastewater the magnetization of water as a modern approach, can be used. With the aim of investigating the effects of brown coal application and magnetizing contaminated water on the absorption of Zn and the yield of maize, a greenhouse experiment was conducted. The experiment was factorial arranged in a completely randomized design with four levels of brown coal (0, 1, 2, and 4% w/w), and 5 types of irrigation water (distilled water, water contaminated with Cu-sulfate, water contaminated with Cu-nitrate, magnetized water contaminated with Cu-sulfate, and magnetized water contaminated with Cu-nitrate). Maize was irrigated according to the treatments of irrigation types, so that the total concentration of Zn added to the pots receiving Zn-contaminated water reached 1200 mg kg−1 at the end of experiment. Results showed that plants irrigated with Zn contaminated water significantly increased shoot dry matter yield, as compared to that of control treatment, due to high buffering capacity of the studied calcareous soil for stabilization of Zn. Magnetized water significantly increased mean shoot and root Zn uptake, uptake efficiency, phytoextraction efficiency, translocation factor, and translocation efficiency. Due to the improvement of Zn uptake by maize following the use of magnetized water, it is tentatively concluded that magnetization of waters with high level of Zn may be used for correcting Zn deficiency in calcareous soils.
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Claims 2
Claim · model-written summary
Plants irrigated with Zn-contaminated water had significantly higher shoot dry matter yield than the control treatment.
- Treatment
- Zn contaminated watere1
- Outcome
- shoot dry matter yielde1
- Direction
- increasede1
- Comparator
- control treatmente1
- Setting
- a greenhouse experimente0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the aim of investigating the effects of brown coal application and magnetizing contaminated water on the absorption of Zn and the yield of maize, a greenhouse experiment was conducted”
e1“Results showed that plants irrigated with Zn contaminated water significantly increased shoot dry matter yield, as compared to that of control treatment, due to high buffering capacity of the studied calcareous soil for stabilization of Zn”
Claim · model-written summary
Magnetization of waters with high Zn may be used for correcting Zn deficiency in calcareous soils (tentative conclusion).
- Treatment
- magnetization of waters with high level of Zne3
- Outcome
- correcting Zn deficiency in calcareous soilse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the aim of investigating the effects of brown coal application and magnetizing contaminated water on the absorption of Zn and the yield of maize, a greenhouse experiment was conducted”
e3“it is tentatively concluded that magnetization of waters with high level of Zn may be used for correcting Zn deficiency in calcareous soils”
The same questions in other papers
zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
437 papers more in this group
See all 441 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.