Bio-solids and cattle slurry have similar impacts on earthworm populations and grass yields [electronic resource] / Davin Walshe

By: Material type: Computer fileComputer filePublisher: Galway : Galway-Mayo Institute of Technology, 2018Description: 1 online resource (31 pages) : figures, tablesContent type:
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Subject(s): Online resources: Dissertation note: BSc (Hons) in Rural Enterprise and Environmental Management. Galway-Mayo Institute of Technology, 2018 Summary: Increases in global human and animal population numbers have given rise to large quantities of waste being produced on a global scale. Bio-solids coming from wastewater treatment plants (WWTP) and slurry deriving from livestock are both organic fertilisers. Both fertilisers are known to have positive and negative impacts on grass yields and soil organisms. The null hypothesis (H0) of this experiment was that there would be no differential response of grass growing between the bio-solid and cattle slurry fertilisers. Additionally, the second H0 of this experiment was that there would be no differential effects of applying bio-solids and cattle slurry on earthworm density. Five different treatments - control, bio-solids at an equivalent rate of 20 tonnes per hectare (bio-solids 20T/Ha), bio-solids at an equivalent rate of 30 tonnes per hectare (bio-solids 30T/Ha), slurry at an equivalent rate of 20 litres per hectare (slurry 20L/Ha) and slurry at an equivalent rate of 30 litres per hectare (slurry 30L/Ha) were used in this experiment. The grass yield Kg/DM/Ha and number of earthworms from each treatment were recorded for a one-way analysis of variance (ANOVA). It was found that there was no difference in the mean grass yield among the five experimental treatments. Similarly, it was established that there was no difference in the mean number of earthworms between the five experimental treatments. External factors such as weather conditions may have affected the results of this experiment. Long-term application of both bio-solids and slurry under controlled conditions such as a greenhouse may have achieved differential impacts between the treatments.
List(s) this item appears in: THESES: Bachelor Of Science In Rural Enterprise And Environmental Management
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Thesis Thesis ATU Electronic Resources View Online eThesis (Browse shelf(Opens below)) Available eThesis - click link above to access eth263033

BSc (Hons) in Rural Enterprise and Environmental Management. Galway-Mayo Institute of Technology, 2018

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Increases in global human and animal population numbers have given rise to large quantities of waste being produced on a global scale. Bio-solids coming from wastewater treatment plants (WWTP) and slurry deriving from livestock are both organic fertilisers. Both fertilisers are known to have positive and negative impacts on grass yields and soil organisms. The null hypothesis (H0) of this experiment was that there would be no differential response of grass growing between the bio-solid and cattle slurry fertilisers. Additionally, the second H0 of this experiment was that there would be no differential effects of applying bio-solids and cattle slurry on earthworm density. Five different treatments - control, bio-solids at an equivalent rate of 20 tonnes per hectare (bio-solids 20T/Ha), bio-solids at an equivalent rate of 30 tonnes per hectare (bio-solids 30T/Ha), slurry at an equivalent rate of 20 litres per hectare (slurry 20L/Ha) and slurry at an equivalent rate of 30 litres per hectare (slurry 30L/Ha) were used in this experiment. The grass yield Kg/DM/Ha and number of earthworms from each treatment were recorded for a one-way analysis of variance (ANOVA). It was found that there was no difference in the mean grass yield among the five experimental treatments. Similarly, it was established that there was no difference in the mean number of earthworms between the five experimental treatments. External factors such as weather conditions may have affected the results of this experiment. Long-term application of both bio-solids and slurry under controlled conditions such as a greenhouse may have achieved differential impacts between the treatments.

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