VOA慢速英语2010年-Agriculture Report - Integrated Pest M
时间：2019-01-12 作者：英语课 分类：2010年VOA慢速英语(十一)月
This is the VOA Special English Agriculture Report.
Farmers know that if you reduce harmful insects and diseases in your crops, you have a chance for a better harvest. Today, many farmers and experts praise Integrated Pest Management, or IPM. IPM is a series of choices and methods to control insects, diseases and fungi 1. The program provides current information on how pests live and act in the environment.
A number of non-governmental and other organizations in many countries provide education in IPM. Farmers can get information meant for the needs of their own land. They can learn to recognize possible problems and how to plan crops to help prevent failures.
Paul Jepson heads the Integrated Plant Protection Center at Oregon State University. He says farmers who have attended field schools in Asia and Africa have increased the use of IPM. And he says this has cut pesticide 2 use.
James Frederick is an IPM expert with Clemson University’s Pee Dee Research and Educational Center in South Carolina. He says one basic IPM method is to plant as early in the season as possible so that most of the crop will be in by the time a disease or pest arrives.
Not all insects are pests. Some are helpful. IPM programs help farmers learn to identify different kinds.
Scientists check cassava for signs of pests and diseases at a field in northeastern Thailand Another IPM method is rotating crops. Farmers do not plant the same crop season after season in the same soil. Instead, they may plant corn one season, soybeans the next, then corn again.
Brenda Vander Mey is also with Clemson University. She says farmers should not endlessly work the same soil without putting back some organic matter.
James Frederick says farmers need information about what crops are best to plant. He says that sometimes disease-resistant crops will reduce harvests. He said a last choice would be chemical control. But he suggests using management methods first.
Another possible method of pest control is using genetically 4 modified plants. They have had their genes 5 changed to contain a special characteristic, like resistance to certain insects.
Brenda Vander Mey says she believes improvements in plants can be very helpful. She noted 6 the example of genetic 3 engineering that makes rice more nutritious 7 by producing beta carotene.
And that’s the VOA Special English Agriculture Report. I’m Bob Doughty 8. You can read and download our programs at voaspecialenglish.com.
- Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
- The lawn was covered with fungi.草地上到处都是蘑菇。
- The pesticide was spread over the vegetable plot.菜田里撒上了农药。
- This pesticide is diluted with water and applied directly to the fields.这种杀虫剂用水稀释后直接施用在田里。
- It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
- Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
- All the bees in the colony are genetically related. 同一群体的蜜蜂都有亲缘关系。
- Genetically modified foods have already arrived on American dinner tables. 经基因改造加工过的食物已端上了美国人的餐桌。 来自英汉非文学 - 生命科学 - 基因与食物
- You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
- Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
- The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
- Jim is noted for arriving late for work.吉姆上班迟到出了名。
- Fresh vegetables are very nutritious.新鲜蔬菜富于营养。
- Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。