This is the VOA Special English Agriculture
Report.
For many than half a century, many farmers
worldwide have added nitrogen (nitrigon) fertilizer to their soil.
They do this to increase the supply of organic carbon for the long
term health of the soil. But for scientists from the University of
Illinois say too much synthetic nitrogen may instead reduce the
organic carbon.
They report their findings in the current
(General)Journal of Environmental Quality. The team led by S.A.KHan
studied soil taken from the Morrow Plots, the experimental farm
fields near the University of Illinois have been used for more than
one hundred years. The researchers studied one area where corn is
continuious continuousely grown. They compare it with another area
where corn is planted in turn with oats and hay.
Over a period of more than fifty years. The area
where only corn was grown got more c
This is the VOA Special English Development
Report.
Viruses, bacteria and other organisms in dirty water sicken
hundreds of millions people every year. Yet, there are many
different water treatment technologies available.
Some systems use ultraviolet light to destroy harmful organisms.
One product that disinfects water with UV light is called Aqua
Star. made by Meridian Design.
The American company says most UV water purification systems put
into homes have one or more filters. These use carbon or mesh to
catch impurities. The filters are added to improve the taste and
smell of water.
But the company says a complex system like this is often not
needed in situations where the aim is just to make water safe to
drink.
The Aqua Star device is a one litre bottle with an
ultraviolet lamp inside. The user pushes a button and the light
goes on for about a minute and a half. The lamp is powered by two
small battaries.
I'm Susan Clark with the Special English Program
WORDS AND THEIR STORIES.
Tom Smith is the best hitter on his company's
baseball team. For weeks during the playing season, Tom hit a
homerun in every game the team played. But then suddently, he stop
hitting homeruns. He could not hit the baseball at all. One day he
stuck out three times in one game. He said, 'I'm afraid I'm losing
it. '
Merry Jones bought a dress in a women clothing
store. She felt very happy about buying the dress until she got
home. Then she remembered she had left her credit car at the store
when she used it to pay for the dress. It was the third time that
month that Merry had forgotton something important. Merry was very
angry with herself. She said 'am I losing it?'
Emma Cleveland was teaching a class in
mathematics at a college. She began to explain the students how to
solve the very difficult
This is IN THE NEWS in VOA Special
English.
The political crisis in Pakistan deepened in
Friday. Opposition leader Benazir Bhutto try to lead a big protest
against emergency rule declared last Saturday by President Pervez
Musharraf. Instead, the former Prime Minister spent the day under a
house arrest. She tried to leave her home in Islamabad to attend a
demonstration that she organized in nearby Rawalpindi. But she
could not get passed barriers and hundreds of police around her
home.
Late in the day, however, Benazir Bhutto was
freed. The government said the detention order has been withdrawn.
In Rawalpindi, police clashed with several hundred of protesters
who violated a ban on demonstrations. Benazir Bhutto says she still
plans to lead a protest march early next week from M. to Islamabad.
She returned to Pakistan last month after eight years of exile to
avoid corruption charges. Before she returned, s
This is the VOA Special English Economics
Report.
Last week we told you about the big losses at
the Investment Bank Merrill Lynch. But the losses may be even
bigger at the nation's biggest bank CITIGroup.
CITIGroup estimated this week that it will take
losses of eight billion to eleven billion dollars on investments in
risky housing loans. Many people who bought houses with subprim
mortgages and now unable to pay them back. The estimated
write-downs are for the banks current period October through
December. CitiGroup says they represent five to seven billion
dollars after-taxes. The bank reported six and a half billion
dollars in credit related losses for the third quarter of the
year.
Charles Prince, CITIGroup's chief executive
officer resigned under pressure on Sunday. He led the New York
based bank since two thousand three. He took over for Sanford Weill
who brought CIT