1. Effect of Continuous use of Sodic Irrigation Water with and without Gypsum, Farmyard manure, Pressmud and Fertilizer on Soil Properties and Yields of Rice and Wheat in a Long term Experiment

   • N. P. S. Yaduvanshi
   • A. Swarup

   OriginalPaper Pages: 111 - 118

2. Nitrogen Cycling with Respect to Environmental Load in Farm Systems in Southwest China

   • Lei Liang
   • Toshiyuki Nagumo
   • Ryusuke Hatano

   OriginalPaper Pages: 119 - 134

3. Nutrient Uptake and Balance of Cotton + Pigeonpea Strip Intercropping on Rainfed Vertisols of Central India

   • D. Blaise
   • A. N. Bonde
   • R. S. Chaudhary

   OriginalPaper Pages: 135 - 145

4. Effects of P Fertilizer Placement and Temperature on Root Hair Formation, Shoot Growth and P Content of Barley Grown on Soils with Varying P Status

   • Annbjørg Øverli Kristoffersen
   • Hugh Riley
   • Trine A. Sogn

   OriginalPaper Pages: 147 - 159

5. Groundnut Yield Response to Single Superphosphate, Calcitic Lime and Gypsum on Acid Granitic Sandy Soil

   • W. T. Mupangwa
   • F. Tagwira

   OriginalPaper Pages: 161 - 169

6. Towards a Revised Coefficient for Estimating N₂O Emissions from Legumes

   • Philippe Rochette
   • Henry H. Janzen

   OriginalPaper Pages: 171 - 179

7. Effect of Green Manure Addition on Soil Organic Phosphorus Mineralisation

   • Parmjit S. Randhawa
   • Leo M. Condron
   • Roger D. McLenaghen

   OriginalPaper Pages: 181 - 189

8. Nitrogen Fertilization Effects on Quality of Organic Matter in a Grassland Soil

   • S. S. Malhi
   • Z. H. Wang
   • J. T. Harapiak

   OriginalPaper Pages: 191 - 199

9. Intercropping of Wheat and Pea as Influenced by Nitrogen Fertilization

   • Bhim B. Ghaley
   • H. Hauggaard-Nielsen
   • E. S. Jensen

   OriginalPaper Pages: 201 - 212

10. Improving Estimates of Nitrate Leaching for Quantifying New Zealand’s Indirect Nitrous Oxide Emissions

    • Stephen M. Thomas
    • Stewart F. Ledgard
    • Glyn S. Francis

    OriginalPaper Pages: 213 - 226

11. Organic Matter Management as an Underlying Cause for Soil Fertility Gradients on Smallholder Farms in Zimbabwe

    • F. Mtambanengwe
    • P. Mapfumo

    OriginalPaper Pages: 227 - 243

12. Phosphorus Fractionation and Sorption in P-enriched Soils of Norway

    • B. R. Singh
    • T. Krogstad
    • M. Bakkegard

    OriginalPaper Pages: 245 - 256

13. Weekly Weather Generation for a Nitrogen Turnover Model

    • A. G. Dailey
    • J. U. Smith
    • A. P. Whitmore

    OriginalPaper Pages: 257 - 266

14. On-farm Evaluation of Biological Nitrogen Fixation Potential and Grain Yield of Lablab and Two Soybean Varieties in the Northern Guinea Savanna of Nigeria

    • J. A. Okogun
    • N. Sanginga
    • J. Diels

    OriginalPaper Pages: 267 - 275

15. Phosphorus Mass Balances for Successive Crops of Fertilised Rainfed Rice on a Sandy Lowland Soil

    • Sovuthy Pheav
    • R. W. Bell
    • G. J. D. Kirk

    OriginalPaper Pages: 277 - 292

16. Methane and Nitrous Oxide Emissions from Rice Field and Related Microorganism in Black Soil, Northeastern China

    • Jin Yue
    • Yi Shi
    • Guohong Huang

    OriginalPaper Pages: 293 - 301