.jpg)
MOST POPULAR
- Man-made reasons for Uttarakhand disaster 1
- Dhari Devi idol goes missing 2
- Pedestrian questions 14
- Gujarat pollution board gets a makeover in efficiency 33
- Transition failure 1
- Where all did extreme events cause disasters last decade
- Rains over past three days extreme weather event: scientists 1
- Monsoon arrives early; kills over 30 people in Uttarakhand
- Rush of hydropower projects on Ganga, tributaries
- Out of turn
FOLLOW US ON
Chemical Fertilisers
Wrap it right
Issue Date: Jun 30, 2013
UREA is one of the most commonly used fertilisers in India, thanks to big government subsidies. It is a good source of nitrogen for the soil but the fertiliser does not come without its share of evils. Urea used in excessive amount, leaches in the runoff from the fields.
Nutrient paradox
@Jyotika_Sood Issue Date: Apr 15, 2013
THE WORLD is facing a nutrient crisis, says a new report. Nutrients, like nitrogen and phosphorus, are essential for raising crops to feed the ever increasing population and in production of energy. But the report, ‘Our Nutrient World’, suggests these human activities have altered the natural flow of these nutrients.
Science and Technology - Briefs
Issue Date: Nov 15, 2012
COMPUTER SCIENCES
Super disc
Typical compact discs (CDs) store 600-700 megabytes (MB) of digital data. A new technology can now help develop CDs that can hold 2 terabytes or 2,000,000 MB of data. Instead of packing more data on the surface, the idea is to make an optical film with 64 data layers.
Contaminating millets
Issue Date: Aug 31, 2012
Millets, suddenly, are a focus area for the Union Ministry of Agriculture.
Letters - August 15, 2012
Issue Date: Aug 15, 2012
It’s business as usual
Green Revolution’s hidden toll
Issue Date: Jun 15, 2012
Fertiliser’s true climate impact
Issue Date: May 15, 2012
NITROUS oxide is a potent greenhouse gas—it is 300 times more powerful than carbon dioxide in causing global warming. Though it reaches the environment through different sources like sewage treatment, livestock, vehicles and industries, use of fertilisers in agriculture is its biggest contributor.
Orange tumbles
Issue Date: Apr 30, 2012
A beaming Uday Wath hugs the trunk of his sturdy, disease-free Nagpur orange tree. All around him are trees drooping with the fruit, large and healthy. The tree trunks are singularly free of both telltale gummosis wounds and bluish white bordeaux paste, the chemical meant to prevent them.
Toxic legacy
Issue Date: Apr 30, 2012
THOUGH nitrogen and nitrates occur naturally, they are at levels that do not harm. But concern is increasing about high concentrations of nitrogen leaching into aquifers from synthetic fertilisers and manure applied to cropland, resulting in nitrate pollution. High-nitrate levels can cause cancer, reproductive disorders and can be lethal for infants.
Desperate for gas
Issue Date: Nov 15, 2011
BAWANA IN NORTHWEST DELHI is a telling stop on India’s winding and elusive gas trail. About 35 km from the city centre, Bawana is where the Delhi government is setting up a 1,500 MW power plant that will meet a fifth of the capital’s voracious energy needs. The state-owned generating company, Pragati Power Corporation Ltd (PPCL), is forking out Rs 4,500-crore to set up this gas-fired plant in two modules of 750 MW each, the first of which has been ready for a while. However, despite severe power cuts in recent weeks, the plant has remained idle. There is no fuel to run it
