Potassium release kinetics was investigated in soils drawn from plots of a long term fertilizer experiment that had been receiving different rates of K. Non exchangeable K release was higher in soils that were receiving organic and inorganic fertilizers than the soils not dressed with K. The amount of non exchangeable K release was faster initially and it slowed down afterwards.

Green revolution in India has bypassed the remote places like hills. Farmers who are struggling for survival under unfavorable conditions like hills need focus. In Uttarakhand, only 13.62 per cent is the net cultivated area. Agriculture in Uttarakhand is primarily confined to lower and mid hill regions and is basically subsistence in nature.

Criticism reflects muddled view of commercial banks' functioning The fact that the country's largest bank was forced to withdraw an innocuous internal circular on farm loans only indicates the inability of even well run banks to take independent decisions. A farmer in his field in Punjab.

A former US Environmental Protection Agency (EPA) scientist is suing the agency's officials and researchers at the University of Georgia in Athens, alleging that they manufactured and published false data to support the use of potentially harmful sewage sludges as fertilizers. The sludges have been linked to health problems in humans and cattle

Some 30 years ago, as the United States began to tighten its environmental regulations on residential and industrial wastewater, operators of sewage-treatment plants embraced what seemed an eminently sensible idea. They decided to take the rich organic sludge left over after clean water is extracted and sell it to farmers as fertilizer. The programme might well be as sensible as it seems. It is possible that the millions of tonnes of sludge being spread across the rural landscape contain no significant levels of toxic chemicals, heavy metals or disease-causing organisms.

KANCHI KOHLI,    MANJU MENON

Ministers of the United Progressive Alliance government are often heard mouthing platitudes about inclusive growth. On the face of it, inclusive growth seems a democratic ideal. But platitudes aside, what does the ideal really translate into for farmers, fishworkers and tribals?

In a recent perspective, "Food security under climate change" (1 February, P. 580), M.E. Brown and C.C. Funk conclude that improved seed, fertilizer, land use and governance lead to food security. I find these claims highly questionable. The green revolution model (monocultures of improved crops supported through high levels of agrochemical and other inputs) has done much to increase agricultural productivity. It does little, if anything, to increase food security. (Letters)

More than a billion acres have been planted with genetically engineered crops in the USA since 1996, but we do not fully know their ecological costs and benefits.

Significant increase in the growth of paddy plant parts was achieved by halving the urea used and pelleting the remaining with neem cake prior to application. Results on a non-averaged dataset showed significant increase in leaf length, number of leaves, number of panicles, number of tillers and greenness of leaves.

The System of Rice Intensification is an alternative to the traditional way of flooded rice cultivation and is showing promise in addressing the problems of water scarcity, high energy usage and environmental degradation. The SRI method involves synergy of five important farm management techniques. Vibhu Nayar V. K. Ravichandran

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