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 GaoYun LiQin Qiang Original article 07 February 2009 Pages: 109 - 121
Fertiliser strategies for improved nutrient use efficiency on sandy soils in high rainfall regimes S. SitthaphanitV. LimpinuntanaR. W. Bell Research Article 13 February 2009 Pages: 123 - 139
Pea–barley intercropping and short-term subsequent crop effects across European organic cropping conditions H. Hauggaard-NielsenM. GoodingE. S. Jensen original article 13 February 2009 Pages: 141 - 155
Effect of sago palm (Metroxylon sagu Rottb.) cultivation on the chemical properties of soil and water in tropical peat soil ecosystem Etsuko MiyamotoSachi MatsudaAkira Watanabe original article 07 February 2009 Pages: 157 - 167
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. RufinoP. TittonellA. Verhagen Original Article Open access 13 February 2009 Pages: 169 - 186
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 KlaudisováMichal HejcmanVilém Pavlů BriefCommunication 10 February 2009 Pages: 187 - 193
Comparative study of a Zn-enriched post-methanation bio-sludge and Zn sulfate as Zn sources for a rice–wheat crop rotation Prakash C. SrivastavaAjay P. SinghS. F. D’souza Original article 14 February 2009 Pages: 195 - 202
Root exudates of a legume tree as a nitrogen source for a tropical fodder grass Riina JalonenPekka NygrenJorge Sierra Original article 13 February 2009 Pages: 203 - 213
