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1.问题的提出过去的肥料生产者和使用者,着重考虑的问题是肥效,较少考虑到在生产和使用肥料过程中对环境和人体健康的影响。
1. Issues raised The past fertilizer producers and users have focused on fertilizer efficiency and have less thought about the impact on the environment and human health during the production and use of fertilizers.