Phát âm chuẩn cùng VOA - Anh ngữ đặc biệt: Salt Water Farming (VOA)

Học tiếng Anh hiệu quả, nhanh chóng: http://www.facebook.com/HocTiengAnhVOA, http://www.voatiengviet.com/section/hoc-tieng-anh/2693.html. Nếu không vào được VOA, xin hãy vào http://vn3000.com để vượt tường lửa. Các chương trình học tiếng Anh miễn phí của VOA (VOA Learning English for Vietnamese) có thể giúp bạn cải tiến kỹ năng nghe và phát âm, hiểu rõ cấu trúc ngữ pháp, và sử dụng Anh ngữ một cách chính xác. Xem thêm: http://www.facebook.com/VOATiengViet Luyện nghe nói và học từ vựng tiếng Anh qua video. Xem các bài học kế tiếp: https://www.youtube.com/playlist?list=PLD7C5CB40C5FF0531 Ag: Luyện nghe nói tiếng Anh qua video: Chương trình học tiếng Anh của VOA: Special English Agriculture Report. Xin hãy vào http://www.voatiengviet.com/section/hoc-tieng-anh/2693.html để xem các bài kế tiếp. Climate change has caused a rise in sea levels. This has increased the amount of salt in fresh water used on coastal farms. As a result, farmers are increasingly unable to use fields close to the sea. Scientists call this process “salinization.” The term comes from the word “saline” -- which means a mixture of salt and water. The United Nations Food and Agriculture Organization says salinization is reducing the world’s irrigated lands by 1 to 2 percent every year. Irrigation is the process of supplying land with fresh water from other areas. But a farmer in the Netherlands is now using a mixture of sea and fresh water to grow healthy and tasty vegetables. Marc Van Rijsselberghe started with an experiment. He put several different kinds of plants in saline. Mr. Van Rijsselberghe worked on the project with scientists from the Free University of Amsterdam. He divided a farm into eight areas. Each was irrigated with either fresh water or water with different levels of salinity. Computerized measuring devices called sensors controlled the water levels and the levels of salinity. Mr. Van Rijsselberghe says he was able to harvest vegetables from most of the eight test areas. He says the vegetables were smaller than those grown in fresh water. But he says they also had more sugar and salt, so they tasted better. The farmer grew carrots, cabbage, onions and beetroot. But he found that potatoes grew better than the other vegetables.