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VOA慢速英语2011.12.11


       
       




New agricultural methods and technology increased food production in many countries during the Green Revolution. Cropland increased by twelve percent from nineteen sixty-one to two thousand nine -- yet production grew by one hundred fifty percent.
绿色革命期间,新农业方法和技术让许多国家增加了粮食产量。从1961年到2009年农田增加了12%,而产量增加了150%。
But the new report warns that production rates have been slowing in many areas. In too many places, it says, practices that have increased production have also harmed the land and water. It calls for greater use of ways that can expand production while limiting damage to ecosystems.
但这份新报告警告称,许多地区的生产率一直在减缓。报告称,在很多地区,增加产量的做法同时也损害了土地和水资源。报告呼吁加大使用既可以扩大生产又可以限制对生态破坏的方法。
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one such practice might be the use of ? trees. These are fast growing trees and ? whose leaves and roots help improve soil.A recent study found that  400000 farmers in south africa are using them .

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New agricultural methods and techonology increased food production in many countries during the green revolution, cropland increased by 12 precent from 1971 to 2009, yet, production growed by 150 percent.
But the new report warns that production rates have been slowing in many areas, in many places it says ?? that have increased production, have also harmed the land and water, it calls for great use of ways that can expand production, well limiting damage to ?? systems

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One such practice might be the the use of fertilizer trees, these're fast growing trees and ? whose leaves and roots helping prove soil, a recent study have found that about four hundred thousand farmers in south of Africa are using them

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Time is money!

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