Maximise the fertiliser value of slurry this winter...
Escalating wheat prices and production costs are raising uncertainty over fertiliser prices this season. The organic nutrient content of slurry is a valuable asset and the opportunity to boost this value and reduce fertiliser bills by up to 75% can be achieved by introducing a bacterial treatment to storage lagoons.
Research
Studies carried out at Myrescough College in Lancashire, summer 2009 showed that after 6 weeks "SlurryBugs" treated dry matter yields were 51% higher than the control and a significant increase in grass sugar content took place leading to more efficient silage fermentation and improved palatability.
Further research at the Lancaster Environment Centre this summer revealed the "SlurryBugs" treated and untreated fertiliser value of slurry and gaseous emission levels. After 5 weeks testing the treated slurry contained doubled phosphorus concentrations and nitrogen content increased by 3 times compared to the control. The net carbon emissions of CO and methane (CH4) were smaller in treated tanks, showing a 53% reduction in CO2 levels and 56% less CH4 measured as CO2 equivalent/kg/hour in comparison to the control.
Dr Maria-Fernanda Aller comments "Results show the larger amount of organic N found in treated slurry reduces ammonia emissions, and taking longer to break down in the soil the risk of N loss by leaching is lowered which is important for NVZ’s and organic farms.
"Overall "SlurryBugs" treated slurry had better fertilizer quality and promotes reductions in ammonia, methane and CO2 levels."
Developed by EnviroSystems, SlurryBug & Booster improves the nutritional content and fertilising abilities of farm waste. With N fertiliser prices set to soar the opportunity to improve naturally occurring N in slurry is likely to be welcomed as a defence against impending farm input costs.
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