Eichornia crassipes

Water Hyacinth. Water hyacinth (Eichornia crassipes Solms) has been killed by 0.1% solution of the alkanolamine salt of 2,4-D in Indonesia (54), or in the Philippines by the isopropyl ester in as low as 0.1% solutions (39). In the southern United States, 2,4-D has been widely used to kill this plant. This plant is of relatively minor importance in Puerto Rico. It tends to choke up river mouths and is removed to improve drainage. A single application of the isopropyl ester of 2,4-D has given excellent results on a small scale. 

Eichornia crassipes), water lettuce (Pistia stratiotes), and Eurasian milfoil (Myriophyllum spicatum). When planting in baskets, use a special, low-nutrient aquatic planting mix or garden subsoil. 

Wood ashes.—The ash of wood, not coal, contains about 30 per cent, of potassium carbonate. Prior to the exploitation of the Stassfurt salts about the middle of the nineteenth century, the chief source of potash was wood ashes, and the process is still used in certain localities where wood-fuel is employed and where much waste wood is available—e,g, in some parts of Canada, United States, Russia, Spain, etc. The ash of trees, hedge-cuttings, sawdust, etc., can be made to yield potash. In the Caucasus, the simfiower is grown on waste land for the sake of its seed. The stalks, leaves, etc., are a by-product and are burnt the ash is used as a source of potash. Nearly 7000 tons per annum of crude potash from this source were exported from Novorossik in Russia. The residues in the manufacture of olive oiFand almond shells are also stated by G. TAbate to be exceptionally rich in potash salts F. W, F. Day claims that the roots of the water hyacinth eichornia crassipes) have... 

Highest concentrations of mercury (90.0 mg Hg/kg FW) were found in roots of alfalfa (Medicago sativa) growing in soil containing 0.4 mg Hg/kg, in bark of a cherry tree Prunus avium) from a factory area in Slovenia (59.0 mg/kg FW), in leaves of water hyacinth (Eichornia crassipes 70.0 mg/kg DW) from a sewage lagoon, in mosses near a chloral-kali plant (16.0 mg/kg FW), in fungi near a smelter (35.0 mg/kg DW), and leaves of Posidonia oceanica (51.5 mg/kg DW) near a sewer outfall. 

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