Fly ash tested as substitute of fertilizer, rice husk and gypsum for tree plantation in sodic soils of Uttar Pradesh
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30/11/2008
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Annals of Forestry
A field experiment was conducted in Allahabad District of Uttar Pradesh to test the possibility of utilizing fly ash, in afforestation of sodic soil with Albizia procera, as a substitute of fertilizers and amendments. Fly ash proved to be a good substitute of rice husk, was superior. Similarly the treatments where fertilizer was replaced with fly ash have also shown better performance of plant. However, substitution of gypsum with fly ash has resulted in severe mortality and poor performance of plants to indicate that gypsum application is very important and fly ash cannot be a substitute of gypsum in afforestation of sodic lands.