caa a22 4500 46320932X CHVBK 20180405153135.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10705-007-9107-5 doi (NATIONALLICENCE)springer-10.1007/s10705-007-9107-5 Nitrogen transformation and nitrous oxide emissions from various types of farm effluents [Elektronische Daten] [Rita Bhandral, Nanthi Bolan, Surinder Saggar, Mike Hedley] With land disposal of the farm effluents as an accepted practice, concerns are viewed for its effect on the nitrous oxide (N2O) emissions. This study was undertaken to determine the effect land application of different farm effluents (treated farm dairy effluent (TFDE), untreated farm dairy effluent (UFDE), treated piggery farm effluent (TPFE) and treated meat effluent (TME)) have on N2O emissions from soil. N2O emissions were measured in the field using closed chamber technique. Effluents were added to the plots at a constant hydraulic loading of 25mm with total volume of effluent applied for each plot being 50l. Some soil properties like Soil bulk density, water filled pore space, oxygen diffusion rate (ODR), mineral nitrogen and dissolved organic carbon were measured along with the N2O flux measurement to assess their correlation with variation observed in N2O flux. The emissions rate was affected by the type of the effluent with TPFE emitting the highest (0.585kg N2O-Nha−1 or 2.17% of the total added effluent-N) during autumn application and TME emitting the highest (0.286kg Nha−1 0.84% of the total effluent-N added) during winter application. The difference in the N2O emissions among the effluents could be attributed to the difference in their C:N ratio. The return to pre-application N2O emissions rates within 2weeks of autumn effluent application and 3weeks of winter effluent application indicates that the effect of effluent application on flux is short lived. Correlation studies indicate that N2O flux was affected by some of the above mentioned soil properties. Springer Science+Business Media B.V., 2007 Dairy farm effluent nationallicence Piggery effluent nationallicence Meat effluent nationallicence Nitrous oxide emissions nationallicence Denitrification nationallicence Bhandral Rita Institute of Natural Resources, Massey University, Palmerston North, New Zealand aut Bolan Nanthi Institute of Natural Resources, Massey University, Palmerston North, New Zealand aut Saggar Surinder Landcare Research, Private Bag 11052, Palmerston North, New Zealand aut Hedley Mike Institute of Natural Resources, Massey University, Palmerston North, New Zealand aut Nutrient Cycling in Agroecosystems Springer Netherlands 79/2(2007-10-01), 193-208 1385-1314 79:2<193 2007 79 10705 https://doi.org/10.1007/s10705-007-9107-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-007-9107-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bhandral Rita Institute of Natural Resources, Massey University, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Bolan Nanthi Institute of Natural Resources, Massey University, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Saggar Surinder Landcare Research, Private Bag 11052, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Hedley Mike Institute of Natural Resources, Massey University, Palmerston North, New Zealand aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Springer Netherlands 79/2(2007-10-01), 193-208 1385-1314 79:2<193 2007 79 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer