1. Effects of mulch, N fertilizer, and plant density on wheat yield, wheat nitrogen uptake, and residual soil nitrate in a dryland area of China

   • Yajun Gao
   • Yun Li
   • Qin Qiang

   Original article 07 February 2009 Pages: 109 - 121

   

2. Fertiliser strategies for improved nutrient use efficiency on sandy soils in high rainfall regimes

   • S. Sitthaphanit
   • V. Limpinuntana
   • R. W. Bell

   Research Article 13 February 2009 Pages: 123 - 139

   

3. Pea–barley intercropping and short-term subsequent crop effects across European organic cropping conditions

   • H. Hauggaard-Nielsen
   • M. Gooding
   • E. S. Jensen

   original article 13 February 2009 Pages: 141 - 155

   

4. Effect of sago palm (Metroxylon sagu Rottb.) cultivation on the chemical properties of soil and water in tropical peat soil ecosystem

   • Etsuko Miyamoto
   • Sachi Matsuda
   • Akira Watanabe

   original article 07 February 2009 Pages: 157 - 167

   

5. Network analysis of N flows and food self-sufficiency—a comparative study of crop-livestock systems of the highlands of East and southern Africa

   • M. C. Rufino
   • P. Tittonell
   • A. Verhagen

   Original Article Open access 13 February 2009 Pages: 169 - 186

   

6. Long-term residual effect of short-term fertilizer application on Ca, N and P concentrations in grasses Nardus stricta L. and Avenella flexuosa L.

   • Michaela Klaudisová
   • Michal Hejcman
   • Vilém Pavlů

   BriefCommunication 10 February 2009 Pages: 187 - 193

   

7. Comparative study of a Zn-enriched post-methanation bio-sludge and Zn sulfate as Zn sources for a rice–wheat crop rotation

   • Prakash C. Srivastava
   • Ajay P. Singh
   • S. F. D’souza

   Original article 14 February 2009 Pages: 195 - 202

   

8. Root exudates of a legume tree as a nitrogen source for a tropical fodder grass

   • Riina Jalonen
   • Pekka Nygren
   • Jorge Sierra

   Original article 13 February 2009 Pages: 203 - 213