Monitoring urine distribution by grazing livestock

摘要：

Introduction Urine patches are a significant source of leaching and gaseous N losses in grazed pastures.N losses increase as urine patch load ( gN/m2 ) increases,and modelled N losses increase if urine is returned as discrete patches rather than at uniform rate across the pasture.The tools we describe will help to quantify urination frequency and urine distribution patterns within large paddocks.

关键词： GPS urine sensor animal behaviour nitrogen

作者: Keith Betteridge Coby Hoogendoorn Wendy Griffiths Des Costall Mark Carter Patrick Laube

作者单位: AgResearch Grasslands,Private Bag 11008,Palmerston North AgResearch Invermay P.O.Box 50034,Mosgiel 240 Mangaone Rd,RD 9,Feilding,New Zealand Dept.of Geomatics,The University of Melbourne,Parkville VIC 3010,Australia

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）