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. 2005 Oct;6(10):981-90.
doi: 10.1631/jzus.2005.B0981.

Identification of technology options for reducing nitrogen pollution in cropping systems of Pujiang

Bin Fang  1 , Guang-Huo Wang, Den Berg Marrit Van, Reimund Roetter
Affiliations

Identification of technology options for reducing nitrogen pollution in cropping systems of Pujiang

Bin Fang et al. J Zhejiang Univ Sci B. 2005 Oct.

Abstract

This work analyses the potential role of nitrogen pollution technology of crop systems of Pujiang, County in Eastern China's Zhejiang Province, rice and vegetables are important cropping systems. We used a case study approach involving comparison of farmer practices and improved technologies. This approach allows assessing the impact of technology on pollution, is forward looking, and can yield information on the potential of on-the-shelf technology and provide opportunities for technology development. The approach particularly suits newly developed rice technologies with large potential of reducing nitrogen pollution and for future rice and vegetables technologies. The results showed that substantial reductions in nitrogen pollution are feasible for both types of crops.

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Figures

Fig. 1
Fig. 1
Fertilizer productivity and losses for different technologies
Fig. 2
Fig. 2
Rice (a) and vegetable (b) production in Zhejiang Province (Zhejiang Statistic Bureau, 2001)
Fig. 2
Fig. 2
Rice (a) and vegetable (b) production in Zhejiang Province (Zhejiang Statistic Bureau, 2001)
Fig. 3
Fig. 3
Pujiang County, Zhejiang Provine
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