Stabilization of Fly Ash Deposits through Selected Cereal Crops
Keywords:
Avena sativa, compost, fly ash deposits, modified volcanic tuff, phytostabilizationAbstract
Fly ash, a waste product from burning coal in power plants, occupies important spaces and is a major harm for environment: water, air, soil and associated ecosystems. New deposits do not have available nutrients for plant growth. The study presents a process of stimulating growth of oats in deposits of fly ash, which eliminates listed. Phytostabilization of new deposit is fast after fertilization with sewage sludge-based compost in the presence/ absence of native or modified volcanic tuff with grain species, Avena sativa L., and variety Lovrin 1. Experimental studies have shown the species adaptability to climatic conditions and a growth rate until the maturity correlated with type of treatment of upper layers of fly ash deposit. Fly ash with sewage sludge compost treatment 50 t/ha determined the growth with 75% of the amount of grains vs. the amount of grains harvested from untreated fly ash. Fly ash with sewage sludge compost mixed with modified indigenous volcanic tuff 2.5 t/ha treatment determined the growth with 80% vs. the amount of grains harvested from untreated fly ash. If oat straw harvested from fertilized variant without modified indigenous volcanic tuff increases in weight are 30% and for fertilized variant in the presence of tuff increases in weight are 39.8% vs. quantities harvested from untreated fly ash.
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