日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

WORLD> Global General
Economist: Fall in research hits farm productivity
(Agencies)
Updated: 2009-10-27 15:37

CANBERRA, Australia: A global fall in agricultural research spending - other than in China - is slowing growth in farm output and will lead to higher world food prices for the first time in five decades, an economist said Tuesday.

Climate change and associated water shortages have contributed, but the productivity slowdown is "heavily related" to declining research spending since the late 1970s, said Philip Pardey, professor of science and technology policy at the University of Minnesota.

"The ultimate consequences of the productivity slowdown are that we're going to move away from a 50-year trend of declining real prices of food to moving back into a trend for increasing food prices," Pardey told The Associated Press on the sidelines of a conference here on world food security.

Related readings:
Economist: Fall in research hits farm productivity China, ASEAN to enhance agricultural cooperation
Economist: Fall in research hits farm productivity President Hu makes inspection tour in Shandong Province
Economist: Fall in research hits farm productivity UN: Agriculture investment must increase 5-fold
Economist: Fall in research hits farm productivity Chinese farmers' income to continue rising in 2009, official says
Economist: Fall in research hits farm productivity China to strengthen int'l cooperation in agriculture

He said most world regions have experienced a slowdown of growth in farm productivity since 1990.

US farm productivity growth - the increase in crop yield for an area of farmland under cultivation - had slipped from 2 percent a year in 1990 to 1.1 percent in 2002, he said.

The slip varies from country to country although the slowdown is global. Pardey blames a lack of investment in improving crop strains and farm management techniques.

China has bucked the trend by maintaining agricultural research and development investment and with a corresponding high crop yield growth in staples such as wheat, rice, corn and soybeans, said Pardey.

Marco Ferroni, executive director of the nonprofit Syngenta Foundation for Sustainable Agriculture, agreed that falling investment in research on better farming practices and ways to produce hardier crop varieties that can thrive in poor soil or resist insects and disease were factors slowing farm productivity growth.

"Not every country is effected the same, but here we're talking about long-term trends and its down for most of the major world regions," Ferroni said.

Figures for 2000, the most recent global figures available, show that the United States contributed about a quarter of $33.7 billion of the world's private and public spending on agricultural research and development.

Of the $20.3 billion in public funding, the United States spent 19 percent and China 9 percent.

Pardey said increasing amounts of this spending was for research on the impact of farming on climate change and the threat of terrorism to food supply - and not on increasing farm production.

The UN World Food Program executive director Josette Sheeran said in Canberra on Monday that most of the developing world is paying more for food despite drops in commodity market prices during the global economic slowdown, with 200 million people joining the ranks of the hungry in the past two years.

主站蜘蛛池模板: 亚洲成人av一区二区三区 | 欧美日韩一区二区三 | 一区二区三区日韩欧美 | 天天狠狠 | 黄色片视频免费 | 久久久久久一 | 96精品在线 | 久久精品99国产精 | 51.cc网站入口永久入口 | 欧美日韩国产免费观看 | 四虎伊人 | 毛片视频在线免费观看 | 欧美色悠悠| av中文字幕不卡 | 黄色在线观看免费视频 | 久久综合伊人77777蜜臀 | 欧美巨大另类极品videosbest | 99久久99久久精品免费 | 国产精品超碰 | 午夜一区二区三区在线观看 | 国产福利在线免费观看 | 永久在线视频 | 天天操天天摸天天干 | 国产8区 | 久久视奸 | 久久艹国产 | 亚洲永久免费 | 久热综合| 国产黄网在线观看 | 中国精品一区二区 | 国产精品久久不卡 | 美女一区二区三区 | 狠狠操狠狠插 | 亚洲在线中文字幕 | 国产一卡二卡 | 久久裸体视频 | 免费黄色欧美 | 黄网视频在线观看 | 国产毛片久久久久久久 | 成人爽爽视频 | 国产精品久久久久无码av |