<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          您現在的位置: Language Tips> Audio & Video> Special Speed News  
           





           
          Giving grasslands a rest
          [ 2008-01-15 09:59 ]

           

           

          Download

          This is the VOA Special English Agriculture Report.

          Grasslands need time to rest when cattle and other animals feed on them. Moving animals from one area of pasture to another can provide the time needed for new growth. This is called rotational grazing, and we have a question from listener Zhang Guohui in China about how it works.

          Experts say rotational grazing is good for the land and the animals, and it can save money. This form of grazing can reduce the need for pesticide chemicals by reducing the growth of weeds. And it can limit the need for chemical fertilizers by letting natural fertilizer, animal droppings, do the job. Rotational grazing can even help prevent wildfires by keeping grasslands in good condition.

          Letting animals feed continually and intensively in the same grazing areas can require costly replanting. Animals eat the most desirable growth first. When that keeps happening, the roots do not have enough time to recover. As a result, less desirable plants may replace them.

          Intensively used grasslands are also harmed as the soil is continually crushed under the weight of heavy animals. And the animals usually avoid their own waste, so that reduces the amount of good grazing space even more.

          Experts say that while rotational grazing can save money over time, it also requires planning. And that starts with a good map to mark fences, water supplies and grazing areas.

          Changing methods of grazing also requires time. Farmers may want to put up electric fences to enclose grazing areas, called paddocks. The paddocks will need water. Some farmers design a path for animals from different paddocks to drink from a common watering place.

          Farmers can start rotational grazing by removing animals from a pasture when the grass is eaten to less than five centimeters. The pasture is then kept empty until the grass grows to more than fifteen centimeters high.

          Experts say sheep and goats may require special preparations. They may need stronger fences than other animals. And while they eat the grass, they may need guard animals like llamas to protect them from animals that would like to eat them.

          And that’s the VOA Special English Agriculture Report, written by Jerilyn Watson. Transcripts and MP3s of our reports are at voaspecialenglish.com. And if you have a question, we might be able to answer it on our program. Write to special@voanews.com and please include your name and country. I’m Steve Ember.

          rotational grazing:輪牧

          (Source: VOA 英語點津姍姍編輯)

           
           
          相關文章 Related Stories
           

           

           

           
           

          本頻道最新推薦

               
            Giving grasslands a rest
            Automakers show off green, fuel efficient vehicles
            Dog fashions hit Japan
            Nicknames: America's 50 states(second)
            New Hampshire primary leaves presidential race wide open

          論壇熱貼

               
            pee park
            狗不理的英文招牌很可能成為新的國際笑話
            to my 2007
            《康定情歌》有誰可以譯出韻味來?
            被宰了
            破罐子破摔




          主站蜘蛛池模板: 国产一区二区精品尤物| 香蕉亚洲欧洲在线一区| 亚洲日韩欧美在线观看| 欧美成人精品三级在线观看| 99久久久无码国产精品古装| 日本一级午夜福利免费区| 免费观看在线A级毛片| 在线天堂资源www中文| 最近中文字幕日韩有码| 四虎国产精品永久一区高清 | 亚洲AV旡码高清在线观看| 在线永久看片免费的视频 | 亚洲av成人无码精品电影在线| 人人妻人人妻人人片色av| 国产亚洲av日韩精品熟女| 亚洲春色在线视频| 国精品午夜福利视频不卡| 亚洲精品国偷拍自产在线观看蜜臀| 久久亚洲精品日本波多野结衣| 国产毛1卡2卡3卡4卡免费观看| 成人午夜在线观看日韩| 国产伦码精品一区二区| 欧洲中文字幕一区二区| 亚洲熟女乱一区二区三区| 亚洲一码二码三码精华液| 国产剧情91精品蜜臀一区| 国色天香中文字幕在线视频| 在线a亚洲v天堂网2018| 成人免费精品网站在线观看影片| 国产成人年无码av片在线观看| 人人人澡人人肉久久精品| 120秒试看无码体验区| 东方四虎av在线观看| 最近中文字幕mv在线视频www| 亚洲一区二区三成人精品| 91青青草视频在线观看| 国产国产精品人体在线视| 亚洲国产韩国欧美在线| 久久久久久久久18禁秘| 人妻体体内射精一区二区| 久久婷婷国产精品香蕉|