Claim · model-written summary
Addition of hard coal ash to sewage sludge decreased the coefficient of nitrogen utilization.
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Dactylis glomerata
Zea maysVerbatim
e0“The research aimed the evaluating of the influence of sewage sludge, hard coal and their ash mixture on yielding, nitrogen content, and its utilization coefficient by cocksfoot and maize”
e5“The coefficient of nitrogen utilization from raw and composted sewage sludge was at similar levels amounting to 26.2 %, on average”
e6“addition of hard coal ash into the sludge caused the decrease of this coefficient”
Title
Influence of Organic and Mineral Waste on Yield, Content of Nitrogen in Tested Plants
S. Kalembasa; Agnieszka Godlewska; Marcin Becher; et al. Ecological Chemistry and Engineering. A 2013
Other claims from this paper (6)
- Intervention effect Raw sewage sludge gave the largest yields of cocksfoot and maize biomass.
- Intervention effect Sewage sludge, sludge-ash mixture and mineral nutrition significantly increased nitrogen contents of cocksfoot and maize.
- Intervention effect Liming considerably decreased nitrogen contents in the biomass of cocksfoot and maize.
- Intervention effect Mineral fertilization significantly enhanced nitrogen uptake by both cocksfoot and maize.
- Intervention effect Applying the waste materials increased nitrogen uptake by cocksfoot only, not by maize.
- Observation The coefficient of nitrogen utilization from raw and composted sewage sludge was similar, averaging 26.2 %.