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2009•Hubei nongye kexueRequires access

Experiment of Nitrogen and Phosphorus Absorption by Aquatic Plants

Guoping Liao

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Abstract

A solution culture experiment was conducted to study the ability of four aquatic plants,Eichhornia crassipes,Al-ternanthera philoxeroides,Cyperus iria and Ludwigia hyssopifolia,in absorbing nitrogen(N) and phosphorus(P).The results showed that the amount of NH4+-N,NO3--N and P absorbed by four aquatic plants followed the order: Eichhornia crassipes Alternanthera philoxeroides Cyperus iria Ludwigia hyssopifolia,which were correlated positively to their fresh weight of plant.Therefore,Eichhornia crassipes was more suitable for constructed wetland for the removal of N and P.

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What this paper is about

A solution culture experiment was conducted to study the ability of four aquatic plants,Eichhornia crassipes,Al-ternanthera philoxeroides,Cyperus iria and Ludwigia hyssopifolia,in absorbing nitrogen(N) and phosphorus(P).The results showed that the amount of NH4+-N,NO3--N and P absorbed by four aquatic plants followed the order: Eichhornia crassipes Alternanthera philoxeroides Cyperus iria Ludwigia hyssopifolia,which were correlated positively to their fresh weight of plant.Therefore,Eichhornia crassipes was more suitable for constructed wetland for the removal of N and P.

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Available abstract

A solution culture experiment was conducted to study the ability of four aquatic plants,Eichhornia crassipes,Al-ternanthera philoxeroides,Cyperus iria and Ludwigia hyssopifolia,in absorbing nitrogen(N) and phosphorus(P).The results showed that the amount of NH4+-N,NO3--N and P absorbed by four aquatic plants followed the order: Eichhornia crassipes Alternanthera philoxeroides Cyperus iria Ludwigia hyssopifolia,which were correlated positively to their fresh weight of plant.Therefore,Eichhornia crassipes was more suitable for constructed wetland for the removal of N and P.

Key concepts: Alternanthera philoxeroides, Eichhornia crassipes, Aquatic plant, Hyacinth, Phosphorus, Botany, Biology, Chemistry

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