1. Utilization of applied fertilizer nitrogen and irrigation water by drip-fertigated squash as determined by nuclear and traditional techniques

   • Munir Jamil Mohammad

   OriginalPaper Pages: 1 - 11

2. Estimates of the interannual variations of N₂O emissions from agricultural soils in Canada

   • W.N. Smith
   • B. Grant
   • C. Li

   OriginalPaper Pages: 37 - 45

3. Carbon sequestration potential of organic agriculture in northern Europe – a modelling approach

   • Bente Foereid
   • Henning Høgh-Jensen

   OriginalPaper Pages: 13 - 24

4. Effect of management history and temperature on the mineralization of methylene urea in soil

   • Marja E. Koivunen
   • William R. Horwath

   OriginalPaper Pages: 25 - 35

5. The potential of Velvet bean (Mucuna pruriens) and N fertilizers in maize production on contrasting soils and agro-ecological zones of East Uganda

   • Crammer K. Kaizzi
   • Henry Ssali
   • Paul L.G. Vlek

   OriginalPaper Pages: 59 - 72

6. Phosphorus status of soil and leaching losses: results from operating and dismantled lysimeters after 15 experimental years

   • F. Godlinski
   • P. Leinweber
   • J. Seeger

   OriginalPaper Pages: 47 - 57

7. Phosphorus supplying capacity of phosphate rocks as influenced by compaction with water-soluble P fertilizers

   • Mamata Begum
   • G. Narayanasamy
   • D.R. Biswas

   OriginalPaper Pages: 73 - 84

8. Landscape position effects on the recovery of ¹⁵N-labelled urea applied to wheat on two soils in Saskatchewan, Canada

   • S.S. Malhi
   • A.M. Johnston
   • D.J. Pennock

   OriginalPaper Pages: 85 - 93

9. Instructions for Authors

   OriginalPaper Pages: 95 - 98