Organic foods are made without the use of conventional pesticides, synthetic fertilizers, antibiotics or hormones -- which could potentially reap benefits for people's health and the environment.
有机食品没有使用常规杀虫剂、合成化肥、抗生素和激素，具有使人体健康与环境受益的可能。
According to our studies, fertilizers had a great potential for the further increase of the efficiency of water use in Fengqiu county, especially for crops with growth period in autumn.
作者认为提高肥料用量（特别在秋粮生产上） ，对进一步提高水分利用率仍有一定作用。
The main reason for this succession might be the changes in crops distribution, cultivation type, planting method, management technique and over-use of chemical pesticides and fertilizers.
导致这一演替的主要原因为作物布局、耕作制度、栽培方法、管理技术的变化和农药化肥的过量施用。
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