资源新版在线天堂-桌下含校园污肉高h-坠落女教师-椎名由奈在线播放-六月色婷婷-六月丁香婷婷天天在线

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 行業相關 » 正文

水稻:只需更正確的種植方法 而不是更好的品種

放大字體  縮小字體 發布日期:2008-07-11
核心提示:Some farmers of irrigated rice in Asia, Africa and the Americas are using a production method called S.R.I. S.R.I. is short for the System of Rice Intensification(激烈化). It does not require new seeds. It only requires changes in the ways that rice


Some farmers of irrigated rice in Asia, Africa and the Americas are using a production method called S.R.I.

S.R.I. is short for the System of Rice Intensification(激烈化). It does not require new seeds. It only requires changes in the ways that rice farmers manage plants, soil, water and nutrients.

With S.R.I, farmers use fewer seeds and transplant them earlier than usual. Leaving more room between plants lets the roots and leaves spread more. Farmers also use less water. They keep the fields moist but do not continuously flood them. The use of chemical fertilizer is also reduced or even eliminated.

Norman Uphoff is a big supporter of the System of Rice Intensification. He was a professor of government and international agriculture at Cornell University in Ithaca, New York. He retired but still works from an office there to bring attention to the system.

A French priest, Father Henri de Laulanie, developed S.R.I. in Madagascar in the nineteen eighties. Norman Uphoff learned about it fifteen years ago while working there. He led field trials for the system for three years.

He says it usually doubles productivity. But during that time in Madagascar, it produced an average of eight tons per hectare. That was four times the usual average. In the late nineteen nineties, Professor Uphoff began trying to spread the word about S.R.I.

Supporters say there have been reports from many areas of large increases in productivity and profits. But not everyone is persuaded.

Kenneth Cassman is an agricultural expert at the University of Nebraska at Lincoln. In his words, "There is no strong evidence that the S.R.I. is more effective than the best of conventional rice-growing methods."

Kenneth Cassman notes that productivity in irrigated rice fields has been slowing, or stagnating, for years. He says there should be more research into the problems and how to solve them.

But Norman Uphoff says he looks forward to more field trials next year which he believes will confirm the effectiveness of S.R.I.

The World Bank says farmers using the system in India's Tamil Nadu State are harvesting forty to eighty percent more rice than before. They report using eighty-five percent less seed and saving thirty-two percent on water usage.

And that's the VOA Special English Agriculture Report, written by Jerilyn Watson. For a link to the S.R.I. home page at Cornell, go towww.en8848.com. I'm Steve Ember.

 

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
關鍵詞: 水稻 種植
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 0.233 second(s), 51 queries, Memory 1.03 M
主站蜘蛛池模板: 98久久人妻无码精品系列蜜桃| 无限资源在线看影院免费观看| 欧美亚洲日韩欧洲不卡| 亚洲精品m在线观看| 成人午夜精品久久久久久久秋霞| 健身房被教练啪到腿软H| 色欲国产麻豆精品AV免费| beeg日本老师按摩| 开心片色99xxxx| 最近中文字幕MV高清在线视频| 国产线精品视频在线观看| 十分钟免费视频大全在线观看| jijzzizz中国版| 欧美高清一区二区三| AV色蜜桃一区二区三区| 美女打开双腿扒开屁股男生| 中国老头oldday tv| 久久99视频免费| 曰批国产精品视频免费观看| 极品虎白在线观看| 亚洲欧美成人| 久久久久久久久久毛片精品美女| 亚洲欧洲日产国码久在线| 国拍自产精品福利区| 亚洲第一综合天堂另类专| 精彩国产萝视频在线| 亚洲一区国产| 久久青草在线视频精品| 一区不卡二区卡| 恋孩癖网站大全在线观看| 99国产在线精品视频| 飘雪韩国在线观看免费高清完整版| 超碰98人人插| 外女思春台湾三级| 狠很橹快播| 最近高清日本免费| 奇米狠狠干| 国产偷国产偷亚洲高清SWAG| 伊人草久久| 人人干人人看| 国产在线播放不卡|