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Found 2 essays matching the above criteria.

1. 1. Water hyacinths (Eichornia crassipes) and their presence in Shire River, Malawi : Problems caused by them and ways of utilise them elsewhere

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Malin Mellhorn; [2013]
   Keywords : water hyacinths; Eichhornia crassipes; green manure; Malawi;

   Abstract : Malawi is one of many countries throughout the world struggling with massive amounts of water hyacinths (Eichornia crassipes) in the country’s fresh water resources.  In nutrient-rich ecosystems where the aquatic weed has no natural enemies it will reproduce very rapidly with the consequence that lakes become overgrown, water flow in rivers is reduced, and other water organisms becomes excluded. READ MORE

3. 2. Effects of manure from water hyacinth on soil fertility and maize performance under controlled conditions in Rwanda

   University essay from SLU/Swedish Biodiversity Centre

   Author : Freddy Rutonesha Gashamura; [2009]
   Keywords : Maize; manure; soil properties; water hyacinth; yield; Rwanda; invasive aquatic plants;

   Abstract : The aim of the present study was to evaluate the impact of manure from water hyacinth on soil properties, maize growth and yield. The soil tested was collected from Gahororo in eastern Rwanda. The maize ZM 607 variety was selected as the test plant. A Randomized Complete Block Design with three replicates and seven treatments was established. READ MORE