The recent trend of agricultural nitrogen flow in Japan and improvement plans

@article{Mishima2004TheRT,
  title={The recent trend of agricultural nitrogen flow in Japan and improvement plans},
  author={S. Mishima},
  journal={Nutrient Cycling in Agroecosystems},
  year={2004},
  volume={63},
  pages={151-163}
}
Nitrogen (N) flows associated with agricultural practices and environmental N risk, which is an index of environmental impact, in Japan from 1980 to 1997 were estimated, and the effect of improvement plans for reducing environmental N risk was simulated for two important prefectures. Recent trends have shown that the input of chemical fertilizer and manure is lower compared to crop production, which is also lower. Environmental N risk peaked in 1985 then became lower, and its content changed… CONTINUE READING

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