ISSN:
1573-5117
Keywords:
Eichhornia crassipes
;
nitrogen
;
phosphorus
;
nutrient uptake
;
nutrient storage
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The uptake of nitrogen (N) by waterhyacinth (Eichhornia crassipes) was maximal when the culture solution contained a combination of 36 ppm N and 6,53 ppm phosphorus (P). N uptake was inhibited by increasing P or decreasing N in the culture medium. Uptake of P was stimulated by the elevation of either N or P or both. An increase of P above O ppm inhibited the accumulation of N. Similarly, the accumulation of P was enhanced by increasing levels of P but was reduced with increasing levels of N. Both N and P levels were always greatest in leaves; next highest in floats and lowest in roots. High tissue levels of these two nutrients and the capacity for nutrient removal from water by waterhyacinth indicates a possible role for this plant in the reduction of eutrophication in nutrient polluted waters as well as the use of harvested, dried tissue for fertilizer.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00011341
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