Chemical Fertilisers

Evaluating net-zero trajectories for the Indian fertiliser industry: marginal abatement cost curves of carbon mitigation technologies

This report evaluates emission mitigation options to achieve net-zero carbon emissions through marginal abatement cost (MAC) curves for the existing plants in the fertiliser industry. MAC curves were developed for three major fertilisers produced in India, which account for 85 per cent of total fertiliser production—urea, di-ammonium phosphate (DAP), and …

In short

sop to stay: Populism has prevailed over pragmatism. Bowing to pressure exerted from across the political spectrum, Union finance minister Jaswant Singh has rolled back the proposed hike in prices of fertilisers, which he had announced while presenting the Union budget. The minister had suggested that the price of urea …

Climate is changing, and the Sundarban residents can feel it

The Sundarban delta region in the Bay of Bengal, with 10,000 square kilometres of estuarine mangrove forest and 102 islands, is the world's largest delta. The land here is an eerie muddle of landmass and sea, with mudflats and waves engaged in unrelenting battle. Constantly lashed by cyclonic storms and …

More and more urea

It is ironic that while India ranks third in fertiliser use worldwide, it ranks 14 and 16 respectively in the production of rice and wheat. It is even more ironic that India’s fertiliser policy ensures precisely such a result. Fertiliser use in India is dictated by the larger perceived need …

More yield per hectare

Agricultural growth in India has always laboured under the burden of producing more. The idea was: grow only foodgrains. That meant: not ecologically adapted cereals such as millets, but rice and wheat. The green revolution programme was single-minded: it came up with hyv (high-yielding variety) seeds for rice and wheat …

More and more water

A third factor has led to the current debility of soils in India: irrigation. That is to say, water over-use. To feed the rice-wheat mentality, net irrigated area rose from 20.8 million ha in 1950 to 53.5 million ha in 1995-1996. Fed on irrigation, the agricultural area grew from a …

Reclaiming Simple Clod

Soils are a very slow renewable resource. To reclaim them requires, above all, a long-term plan. With falling productivity, the realisation has sunk in that soils cannot be blindly mined, and that humans cannot just plough through the ecology they interact with. apply gypsum: Seven lakh ha of land in …

Field day

What is soil? Nothing but simple clod, always taken for granted. But dig deeper, and you will find that this simple clod generates complex equations of survival and wealth, equity and polity. It is a big little ecological variable. Its influences remain hidden from us. function openpoptable(){ var popurl="http://dte-new/dte-new/html/20030131_cover2.htm" winpops=window.open(popurl,"","width=475,height=500, …

Stir bears fruit

Perseverance pays. With the Malaysian government deciding to ban the herbicide paraquat, a long-standing campaign of environmental pressure groups has finally proved successful. Earlier, a wave of concern was raised by non-governmental organisations about the harmful effects of the chemical. The herbicide is used on bananas, cocoa, cotton, rubber and …

Beauty of being natural

organic farming method uses land far more efficiently and with less environmental impact than conventional farming methods, shows a 21-year study. Unlike conventional farming, organic farming uses no synthetic fertilisers or pesticides. Because of this, organic crop yield is little less. The study conducted by scientists from Switzerland-based Research Institute …

The shape of things to come

Over the past couple of decades, agricultural research has seen increasing involvement of the private sector in what was almost exclusively the preserve of public-funded institutions. With research taking place in the public sector, there was no problem with sharing technology. The spread of the Green Revolution technology is a …

GM blues

So now, India joins another select club

No laughing matter

the Montreal Protocol may be doing wonders for healing the ozone layer over the poles, but it seems to have overlooked the problem in other places. According to a recent study, northern mid latitude stratospheric ozone levels will not recover to pre-1980 levels due to increasing levels of nitrous oxide …

Budget woes

The run-up to the budget is curiously silent on the environment front. But then, if the Union budget of last year, or for that matter the ones preceding it, is anything to go by, it is not surprising. The finance minister may once more end up playing to the corporate …

Tax prop

in an attempt to assist organic farmers, the Union government is intending to clamp one per cent tax on chemical fertilisers. Union minister of state for finance Balasaheb Vikhe Patil recently said that the funds collected through the cess would be utilised to help agriculturists cope with the changes in …

Manipulating Research

PUSHPA M BHARGAVA Former director, Centre for Cellular and Molecular Biology Manipulating research is not a new phenomenon. Earlier, the reason for manoeuvring the results of scientific research was professional rivalry. But for the last four decades, it has been economic gain and power, which could be personal, corporate or …

No laughing matter

an unknown reservoir of nitrous oxide, a potent greenhouse gas, has been found within the coastal waters of the Arabian Sea bordering India's west coast. This was discovered by scientists at the National Institute of Oceanography, Goa. The discovery of the nitrous oxide reserve, commonly known as laughing gas, could …

Damp growth

Many fruits and vegetables are grown in wetlands of Bihar, the most important ones being makhana and singhara. Known as foxnut, makhana (Euryle ferox) is now gaining the status of a major cash crop. Bihar accounts for 75 per cent of country's total output. The fruit has a high nutritional …

Drying wetlands

Kawar Jheel Bird sanctuary, district Begusarai The Kawar lake, as notified "protected' by the state government on June 20, 1989, is 6311.63 hectares (ha). When it was notified, farmers opposed the move. Local politicians also supported them. "Even the former agriculture minister of Bihar, Ram Jeevan Singh, who is among …

The vanishing lakes

The Sahanis are known as "masters of water'. This fishing community had been living in the wetlands of north Bihar for aeons, relying on them for sustenance. They did so by fishing or helping people cross the surging rivers that crisscross the floodplain. Or by displaying their art of trapping …

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