Details
| Original language | English |
|---|---|
| Pages (from-to) | 102-114 |
| Number of pages | 13 |
| Journal | Agricultural water management |
| Volume | 149 |
| Publication status | Published - 1 Feb 2015 |
Abstract
Salt-tolerant plants can be used as biofilters for nutrient-rich saline water such as aquaculture process water. Tripolium pannonicum (Jacq.) Dobrocz. was used to determine optimal culturing conditions for an efficient biofilter performance in terms of nutrient recycling by plant uptake. This performance was evaluated by taking different parameters into account, such as biomass production, plant nitrogen and phosphorus uptake as well as physiological parameters and decrease of nitrate-N and phosphate-P concentrations in the experimental fluid. Afterwards, additional plant species known as edible were studied to follow the idea of generating valuable co-products beside the use as biofilter. It was shown that a nitrate-N concentration of at least 10mgl-1 is necessary for reasonable biomass production. A phosphate-P concentration of 0.3mgl-1 is sufficient, but higher concentrations promote the uptake of phosphate-P. The addition of iron in chelated form is required for the growth of healthy plant biomass; the addition of manganese is beneficial but not implicitly necessary. Salt concentrations lower than seawater salinity promote biomass production and nutrient uptake. The use of a hydroponic culture system is more suitable than sand or expanded clay culture if controlled conditions and nutrient recycling are desired. The five weeks experiment to compare different halophyte species in 0.24m2 tanks with nine plants each resulted in above ground fresh weight of 185 to 398g and total uptake of nitrogen and phosphorus of 0.6 to 2.1g and 0.1 to 0.4g, respectively. All tested species have potential to serve as biofilter and source for valuable co-products. A promising application is the growth of halophytic vegetable plants in marine aquaponic systems.
Keywords
- Aquaculture, Halophytes, Nitrate and phosphate recycling, Nutrient deficiency, Saline agriculture, Wetlands
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Environmental Science(all)
- Water Science and Technology
- Agricultural and Biological Sciences(all)
- Soil Science
- Earth and Planetary Sciences(all)
- Earth-Surface Processes
Sustainable Development Goals
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Agricultural water management, Vol. 149, 01.02.2015, p. 102-114.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Optimization of culturing conditions and selection of species for the use of halophytes as biofilter for nutrient-rich saline water
AU - Buhmann, Anne K.
AU - Waller, Uwe
AU - Wecker, Bert
AU - Papenbrock, Jutta
N1 - Funding information: We would like to thank the gardeners Yvonne Leye and Lutz Krüger for taking care of the plants and Rebecca Hosang, Pamela von Trzebiatowski and Julia Volker for valuable technical assistance. The project was financially supported by the Deutsche Bundesstiftung Umwelt (DBU) ( AZ27708/1-3 ).
PY - 2015/2/1
Y1 - 2015/2/1
N2 - Salt-tolerant plants can be used as biofilters for nutrient-rich saline water such as aquaculture process water. Tripolium pannonicum (Jacq.) Dobrocz. was used to determine optimal culturing conditions for an efficient biofilter performance in terms of nutrient recycling by plant uptake. This performance was evaluated by taking different parameters into account, such as biomass production, plant nitrogen and phosphorus uptake as well as physiological parameters and decrease of nitrate-N and phosphate-P concentrations in the experimental fluid. Afterwards, additional plant species known as edible were studied to follow the idea of generating valuable co-products beside the use as biofilter. It was shown that a nitrate-N concentration of at least 10mgl-1 is necessary for reasonable biomass production. A phosphate-P concentration of 0.3mgl-1 is sufficient, but higher concentrations promote the uptake of phosphate-P. The addition of iron in chelated form is required for the growth of healthy plant biomass; the addition of manganese is beneficial but not implicitly necessary. Salt concentrations lower than seawater salinity promote biomass production and nutrient uptake. The use of a hydroponic culture system is more suitable than sand or expanded clay culture if controlled conditions and nutrient recycling are desired. The five weeks experiment to compare different halophyte species in 0.24m2 tanks with nine plants each resulted in above ground fresh weight of 185 to 398g and total uptake of nitrogen and phosphorus of 0.6 to 2.1g and 0.1 to 0.4g, respectively. All tested species have potential to serve as biofilter and source for valuable co-products. A promising application is the growth of halophytic vegetable plants in marine aquaponic systems.
AB - Salt-tolerant plants can be used as biofilters for nutrient-rich saline water such as aquaculture process water. Tripolium pannonicum (Jacq.) Dobrocz. was used to determine optimal culturing conditions for an efficient biofilter performance in terms of nutrient recycling by plant uptake. This performance was evaluated by taking different parameters into account, such as biomass production, plant nitrogen and phosphorus uptake as well as physiological parameters and decrease of nitrate-N and phosphate-P concentrations in the experimental fluid. Afterwards, additional plant species known as edible were studied to follow the idea of generating valuable co-products beside the use as biofilter. It was shown that a nitrate-N concentration of at least 10mgl-1 is necessary for reasonable biomass production. A phosphate-P concentration of 0.3mgl-1 is sufficient, but higher concentrations promote the uptake of phosphate-P. The addition of iron in chelated form is required for the growth of healthy plant biomass; the addition of manganese is beneficial but not implicitly necessary. Salt concentrations lower than seawater salinity promote biomass production and nutrient uptake. The use of a hydroponic culture system is more suitable than sand or expanded clay culture if controlled conditions and nutrient recycling are desired. The five weeks experiment to compare different halophyte species in 0.24m2 tanks with nine plants each resulted in above ground fresh weight of 185 to 398g and total uptake of nitrogen and phosphorus of 0.6 to 2.1g and 0.1 to 0.4g, respectively. All tested species have potential to serve as biofilter and source for valuable co-products. A promising application is the growth of halophytic vegetable plants in marine aquaponic systems.
KW - Aquaculture
KW - Halophytes
KW - Nitrate and phosphate recycling
KW - Nutrient deficiency
KW - Saline agriculture
KW - Wetlands
UR - http://www.scopus.com/inward/record.url?scp=84911408347&partnerID=8YFLogxK
U2 - 10.1016/j.agwat.2014.11.001
DO - 10.1016/j.agwat.2014.11.001
M3 - Article
AN - SCOPUS:84911408347
VL - 149
SP - 102
EP - 114
JO - Agricultural water management
JF - Agricultural water management
SN - 0378-3774
ER -