Modern fertilizers should be used judiciously.
现代化肥应被明智地使用。
High levels of nitrate occur in the Midwest because of the heavy use of fertilizers.
因为大量使用化肥，中西部地区的硝酸盐含量很高。
The water phase is sometimes affected by excessive fertilizers.
水相有时会受到过量肥料的影响。
They must offer higher yields but use less water, nitrogen-rich fertilizers or other inputs.
新作物的产量必须更高，但消耗更少的水、富氮肥料或其他投入。
They mined the rock, artificially break it down and put the Phosphorus into agricultural fertilizers.
他们开采岩石，人工把它分解，然后把磷放进农业肥料里。
Later the government guaranteed loans to farmers so that they could buy farm machinery, hybrid grain, and fertilizers.
后来政府担保贷款给农民，这样他们可以购买农业机械，杂交谷物，以及肥料。
Mechanical engineers have worked with farmers and biologists to produce fertilizers, machinery and harvesting systems.
机械工程师与农民和生物学家合作开发肥料、机械和收割系统。
They knew that they would have a market for the end product because local farmers were struggling with chemical fertilizers.
他们知道自己的最终产品会有市场，因为当地农民正在与化肥作斗争。
Humanity has the necessary agro-technological tools to eradicate hunger, from genetically engineered crops to arificial fertilizers.
从转基因农作物到人工肥料，人类拥有消除饥饿的必要农业技术工具。
Humanity has the necessary agro-technological tools to eradicate hunger, from genetically engineered crops to artificial fertilizers.
人类拥有必要的农业技术工具来消除饥饿，从转基因作物到人工肥料。
The local farmers were struggling with chemical fertilizers which were expensive and had reduced the natural minerals in the soil over the years.
当地农民正在与价格高昂的化肥作斗争，这些年来化肥减少了土壤中的天然矿物质。
They knew that they would have a market for the end product because local farmers were struggling with chemical fertilizers which were expensive.
他们知道自己的制成品会有市场，因为当地农民正苦于化肥太贵的问题
Long before the use of machinery and fertilizers, industrious and creative farmers had already used different kinds of methods to increase crop yields.
早在使用机械和化肥之前，勤劳和富有创造性的中国农民就已经采用各种各样的方法来增加农作物产量。
There be certain chemicals in fertilizers used to crop-dust cotton that affect the unborn fetus.
作物粉尘中使用的化肥中有某些化学物质会影响胎儿。
It can also seep in from some pesticides and fertilizers.
同样它们也可以通过杀虫剂和肥料渗透进食物。
Artificial fertilizers cannot replace these essential nutrients.
人工化肥不能代替这些重要的营养素。
China has made fertilizers through gasification for decades.
中国利用气化煤生产化肥已有几十年的历史。
Chemical fertilizers are only used if judged absolutely necessary.
化学肥料只在绝对必要的情况下使用。
Most conventional fertilizers rely on ammonia made from natural gas.
大多数人造肥料中的氨来源于天然气。
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。
Excessive use of fertilizers and pesticides also pollute underground water.
此外，过度使用化肥和杀虫剂也使地下水遭到污染。
Melamine is an industrial substance commonly used in plastics and fertilizers.
三聚氰胺是一种经常被用于塑料和化肥中的工业化学用品。
Food that is organic is grown or raised without chemical insecticides or fertilizers.
有机食品是指没有用化学杀虫剂或化肥而种植的食品。
Agricultural fertilizers often drain into aquatic ecosystems and spur a frenzy of growth.
通常，农业化肥流入水生生态系统，促使生物急速的生长。
Urea isn't commonly found in agricultural fertilizers, but it is present in many garden products.
尿素很少用于农业肥料，但是常常用作花肥。
The fertilizers must be delivered before April, or else we can't be in time for the spring sowing.
肥料必须在四月之前运到，否则我们不能及时地进行春播了。
Haiti's soil is so thin, even massive amounts of chemical fertilizers can't restore soil structure.
海地的土壤非常贫瘠，即使施以大量化肥也无法恢复土壤结构。
Haiti's soil is so thin, even massive amounts of chemical fertilizers can't restore soil structure.
海地的土壤非常贫瘠，即使施以大量化肥也无法恢复土壤结构。
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