www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

English 中文網 漫畫網 愛新聞iNews 翻譯論壇
中國網站品牌欄目(頻道)
當前位置: Language Tips> Audio & Video> 新聞播報> Special Speed News VOA慢速

Keeping plants and trees warm when temperatures drop

[ 2010-01-13 10:40]     字號 [] [] []  
免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

This is the VOA Special English Agriculture Report.

Florida, in the southeastern United States, is called the Sunshine State. It grows more oranges than anyplace except Brazil. But Arctic air has damaged some Florida oranges and strawberries in recent days, and killed fish at tropical fish farms.

The unusually long period of cold weather has shown how even warm climates can sometimes freeze over. But protecting plants and trees in the garden may not be too difficult if you follow a few suggestions.

Keeping plants and trees warm when temperatures drop

Sudden cold can be the biggest threat, especially after a warm period. Plants have not had a chance to harden their defenses. Those that are actively growing or flowering are at high risk.

Try to choose plants that live best with cold weather, and planting areas that face west and south. Being near other growth may also provide warmth.

Most frost damage takes place at night. Ice crystals form on the leaf surface. They pull moisture from the leaves and keep plant tissues from getting water.

Cold weather is most likely to damage or kill plants that do not have enough moisture. So keep the garden watered. Moist soil absorbs more heat than loose, dry soil covered with mulch or vegetation.

University of Arizona extension experts say covering plants and small trees with cloth or paper can help prevent frost damage. A 100 watt light bulb designed for outdoor use can also provide warmth. Some people place Christmas lights on young trees for warmth. The bulbs should hang below the leaves to let the heat rise into the tree.

Cold is especially dangerous to citrus trees. Agricultural specialists at the University of California suggest putting paper or cloth around the trunk and central branches of young citrus trees.

In Florida, as temperatures fell to record lows, citrus growers sprayed water on their trees to help prevent freeze damage.

Jim Bottcher is a master gardener with the University of Florida extension. He explains that as the water freezes, it produces heat, and the ice forms a protective blanket around the tree. If you spray a tree, keep the water away from nearby power lines. Heavy ice can form and break them.

You can also wrap a tree in palm tree frond leaves, cornstalks or fiberglass. Adding plastic film works well in rain and snow. But experts say plastic alone does not help much.

And that's the VOA Special English Agriculture Report, written by Jerilyn Watson. More gardening and agricultural advice is at voaspecialenglish.com. I'm Bob Doughty.

mulch: material, for example, decaying leaves, that you put around a plant to protect its base and its roots, to improve the quality of the soil or to stop weeds growing 覆蓋物,護根(用以保護植物根基、改善土質或防止雜草生長)

citrus: fruit belonging to the group of fruit that includes oranges, lemons,limes and grapefruit 柑橘類果實

Related stories:

New alliance to study greenhouse gases in agriculture

Circular thinking: round barns on US farms

How a hoop house can extend the growing season

Officials in US look for fixes to carp problems

(來源:VOA 編輯:陳丹妮)

 
中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
 

關注和訂閱

人氣排行

翻譯服務

中國日報網翻譯工作室

我們提供:媒體、文化、財經法律等專業領域的中英互譯服務
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 国产精品视频九九九 | 99久久一区二区精品 | 国产日韩欧美一区二区三区综合 | 综合色久七七综合七七蜜芽 | 亚洲精品久久久久综合91 | 男人和女人的做刺激性视频 | 亚洲福利视频精选在线视频 | 欧美一级性 | 欧美91精品久久久久网免费 | 久草首页在线观看 | 国产在线观看高清精品 | 国内精品久久久久影院网站 | 日日a.v拍夜夜添久久免费 | 欧美三级日韩三级 | 精品一久久香蕉国产线看观 | 日本乱人伦片中文字幕三区 | 亚洲综合久久久 | 国产一区曰韩二区欧美三区 | 97视频在线观看免费播放 | 成人资源在线 | 久99频这里只精品23热 视频 | 老司机午夜在线视频免费观 | 成人在线精品视频 | 日韩成人在线视频 | 欧美性色黄大片在线观看 | 香蕉久久一区二区不卡无毒影院 | 中文字幕一区二区三区免费视频 | 4tube高清性欧美 | 国产成人综合高清在线观看 | 黄网在线 | 大桥未久在线精品视频在线 | aaaa欧美高清免费 | 男人的天堂精品国产一区 | 精品欧美一区二区精品久久 | 亚洲视频在线观看视频 | 一区二区三区欧美日韩国产 | 日本a一级片 | 日韩黄色片在线观看 | 亚洲网在线观看 | 99re伊人| 日本三级香港三级三级人 |