There have always been some skepticism about the usefulness of subsidies on fertilizers.
一直有人对化肥补贴的效用持某种怀疑态度.
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Most of the micronutrients will be found as contaminants in other fertilizers.
大多数微量养分,经常是肥料的污染物.
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The use of pesticides and fertilizers produces cheap grain and vegetables.
使用杀虫剂和化肥生产出廉价的谷物和蔬菜.
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Fertilizers marketed by the public sector often arrive too late to be used to maximum effect.
公共部门经销的化肥常出现供应迟误现象,因而不能使肥料发挥最大效力.
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Farmers in the machine age also use the new fertilizers, new sprays, and new feeds.
机器时代的农场主还采用新的化肥, 新的喷药, 新的饲料.
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在播种期如以硼盐肥料与种子混合使用,会抑制种子萌芽.
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Many other papers discussed the place of fertilizers in grassland farming.
许多其它的报告,曾讨论过施肥在牧草栽培制中的地位.
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Accumulation of excessive exchangeable potassium is from the use of mixed fertilizers or manure.
由于施用混合肥料或厩肥使交换性钾过渡累积.
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What are some of the organic fertilizers, besides barnyard manure and compost?
除了厩肥和堆肥外,还有些什么有机肥?
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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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Organic fertilizers are slow-acting. They can be used in combination with quick-acting chemicals.
有机肥是慢效肥料, 可以和速效化肥结合使用.
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含化肥和杀虫剂的农业废物流人海洋;对海洋生物也会造成危害.
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