METHOD OF BIOLOGICAL RECULTIVATION OF FLY ASH DISPOSAL AREAS

摘要

A method of biological reclamation of fly ashhaving a pH of 4 to 10 characterized in that it is a layerfly ash for pig and cattle slurry and orpoultry, possibly with faeces containing nitrogenfrom 0.01 to 1.5%; 0.005 to 0.8% phosphorus; potassiumfrom 0.01 to 1.2% and dry matter from 0.5 to 18% by weightfrom 20 to 4,000 tonnes per hectare,if necessary, be supplemented with mineral nutrients by industryfertilising to a nitrogen content in the range of 0.1 to1.5%; phosphorus from 20 to 500 mg and potassium from 50up to 1,000 mg per kg of fly ash, optionally in acidash to pH 5 adjusts the pH with lime above the value5 at a dose of 5 to 2 t CaO per ha and either directlyin or after the substratesoil in the layer preferably from 5 to 30 cm high,eventually up to 50 cm are immediately grown culturalcrops.