In this issue (9 articles)

1. 

   Original Article

   Effect of biogas technology on nutrient flows for small- and medium-scale pig farms in Vietnam

   Quynh Duong Vu, Tien Minh Tran, Phuong Duy Nguyen… Pages 1-13

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2. 

   Original Article

   The carbon footprint of maize production as affected by nitrogen fertilizer and maize-legume rotations

   B. L. Ma, B. C. Liang, Dilip K. Biswas… Pages 15-31

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3. 

   Original Article

   Developments in soil phosphorus status in a recently reclaimed polder in the Netherlands

   Arjan Reijneveld, Oene Oenema Pages 33-45

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4. 

   Original Article

   Changes in the nitrogen balance in agricultural land in Japan and 12 other Asian Countries based on a nitrogen-flow model

   Junko Shindo Pages 47-61

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5. 

   Original Article

   Soil nutrient content and nutrient balances in newly-built solar greenhouses in northern China

   J. J. Gao, X. L. Bai, B. Zhou, J. B. Zhou, Z. J. Chen Pages 63-72

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6. 

   Original Article

   Effect of wheat straw application on ammonia volatilization from urea applied to a paddy field

   Jun Wang, Dejian Wang, Gang Zhang, Can Wang Pages 73-84

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7. 

   Original Article

   Nitrogen leaching and indirect nitrous oxide emissions from fertilized croplands in Zimbabwe

   F. Mapanda, M. Wuta, J. Nyamangara, R. M. Rees Pages 85-96

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8. 

   Original Article

   Changes in soil organic matter indices following 32 years of different wheat production management practices in semi-arid South Africa

   P. F. Loke, E. Kotzé, C. C. Du Preez Pages 97-109

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9. 

   Original Article

   Effect of controlled-release fertilizer on nitrous oxide emission from a winter wheat field

   Yang Ji, Gang Liu, Jing Ma, Hua Xu, Kazuyuki Yagi Pages 111-122

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