Solids (TS: total solids; TVS: total volatile solids), 5-day biochemical oxygen demand (BOD5), total Kjeldahl nitrogen (TKN), and volatile fatty acids (VFAs) for manure samples were measured to characterize the effectiveness of aeration.
Surface runoff can be limited by improved manure collection and increased storage capacity, allowing for manure application to land only when crop demands for water and nutrients are high.
Anecdotal evidence suggests the number of urban professionals trading BlackBerries for manure spreaders is growing fast.
A potential solution, regulators say, is to find new uses for manure.
N intake (NI) was the best predictor for manure N excretion (Manure N=0.66 NI+0.96, r2=0.85).
The main reason for this is the low energy density of manure, implying low production rates in continuous flow stirred tank reactors (CSTR) currently used for manure AD.
Permits for manure storage basins should require bonding for performance and remediation.
Include food containers, food, blankets, shovels for manure and containers for manure if necessary, any lead ropes and such items as foot clippers or wool trimmers.
Eating less meat would reduce demand for fertiliser as well as reduce the amount of manure produced.
The first season after application of high and low N manures may have encouraged a rapid growth of microbial biomass due to an abundance of organic substrate (Ouedraogo et al. 2007), which placed a heavy demand for N on the limited amounts of mineralized N from slowly decomposing manure in soil.
Demand for office space improves.
