Application of carbon additives to reduce nitrogen leaching from cattle urine patches on pasture

• Published in: New Zealand journal of agricultural research Vol. 53; no. 3; pp. 263 - 280
• Main Authors: Shepherd, M, Menneer, J, Ledgard, S, Sarathchandra, U
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis Group 01.09.2010; Taylor & Francis Ltd
• Subjects: Analysis; carbon; immobilisation; Leaching; Loam soils; Lolium perenne; nitrate leaching; Nitrogen; Nitrogen content; pasture; Soils; Sucrose; Testing; Urine; urine patch; White clover; New Zealand

A lysimeter experiment evaluated the use of sawdust or sucrose to decrease nitrogen (N) leaching from newly deposited urine patches to a perennial ryegrass/white clover pasture on sandy loam soil. Cow urine (equivalent to 500 kg N ha −1 ), labelled with 15 N-urea, was applied to the surface of lysim...