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To American biologist Robert Zeigler, the request underscores two global problems: rapidly depleting grain stockpiles, and the need for a new Green Revolution to satisfy food demand that is forecast to jump 50 percent by 2025
Punjab and Haryana were at the forefront of the Green Revolution in the late 1960s and early 1970s, in which farm machinery, pesticides and fertilisers, irrigation and the replacement of traditional crops with high-yielding varieties dramatically increased productivity. The two states together now provide 80 per cent of the country's food surplus.
But the land is increasingly unable to support this burden of intensive agriculture. Crop yields--and water resources--are declining alarmingly, and some parts are close to becoming barren. Many farmers are heavily in debt from their investments in new equipment and reliance on chemicals, and rural unemployment is increasing. These are ominous signs of a deteriorating farm economy.
The growth in output is exclusively the result of an increase in the
area of land under soya bean cultivation. Despite the early promises, RR
soya beans have had five-six per cent lower yields than conventional
soya. Nor has there been the much-heralded decline in pesticide
application. Because of the evolution of vicious new weeds, farmers have
had to use two or three times more pesticides than previously. Overall,
total costs have risen by 14 per cent. Soya prices have dropped as a
result of increased global production, and most farmers are actually
worse off.
The Indian government confirmed that Bt cotton’s disastrous yields cost millions. One state even kicked out Monsanto, after they refused to compensate farmers’ losses. Tragically, hundreds of debt-ridden cotton farmers committed suicide.
Lower profits for farmers growing GM crops: The profitability of growing GM herbicide tolerant soya and insect-resistant Bt maize is less than non-GM crops. This is due to the extra cost of GM seed (which can be up to 40% higher), the lower market prices paid for GM crops, and reduced soya yields.
Last week, Nature magazine reported the results of one of the biggest agricultural experiments ever conducted (2). A team of Chinese scientists had tested the key principle of modern rice-growing - planting a single, high-tech variety across hundreds of hectares - against a much older technique: planting several breeds in one field. They found, to the astonishment of the farmers who had been drilled for years in the benefits of "monoculture", that reverting to the old method resulted in spectacular increases in yield. Rice blast - a devastating fungus which normally requires repeated applications of poison to control - decreased by 94 per cent. The farmers planting a mixture of strains were able to stop applying their poisons altogether, while producing 18 per cent more rice per acre than they were growing before.
Originally posted by yuwing
i don't know there are alternatives to GM at this point. Of course, previous GM attempts could have made croplands less sustainable, BUT people learn and new GM practices can be made in order to improve yield, survive during drought AND improve sustainability of the land.
Let's not give up hope. Using old non-GM seeds is just ridiculous - there wouldn't be enough yield to support us. Then again, we could just kill off half the world's population, wouldn't u like that >_> [/joke]
first post
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Last week, Nature magazine reported the results of one of the biggest agricultural experiments ever conducted (2). A team of Chinese scientists had tested the key principle of modern rice-growing - planting a single, high-tech variety across hundreds of hectares - against a much older technique: planting several breeds in one field. They found, to the astonishment of the farmers who had been drilled for years in the benefits of "monoculture", that reverting to the old method resulted in spectacular increases in yield. Rice blast - a devastating fungus which normally requires repeated applications of poison to control - decreased by 94 per cent. The farmers planting a mixture of strains were able to stop applying their poisons altogether, while producing 18 per cent more rice per acre than they were growing before.
let me write that out: Eighteen Percent, nearly a Fifth.
At a Costco Warehouse in Mountain View, Calif., yesterday, shoppers grew frustrated and occasionally uttered expletives as they searched in vain for the large sacks of rice they usually buy.
"Where's the rice?" an engineer from Palo Alto, Calif., Yajun Liu, said. "You should be able to buy something like rice. This is ridiculous."
Rejecting old customs as well as the modern reliance on genetic engineering, Dr. Uphoff, 67, an emeritus professor of government and international agriculture with a trim white beard and a tidy office, advocates a management revolt.
Harvests typically double, he says, if farmers plant early, give seedlings more room to grow and stop flooding fields. That cuts water and seed costs while promoting root and leaf growth.
The method, called the System of Rice Intensification, or S.R.I., emphasizes the quality of individual plants over the quantity. It applies a less-is-more ethic to rice cultivation.
In a decade, it has gone from obscure theory to global trend — and encountered fierce resistance from established rice scientists. Yet a million rice farmers have adopted the system, Dr. Uphoff says. The rural army, he predicts, will swell to 10 million farmers in the next few years, ...
+ in the last decade, cotton production has declined in the majority of countries that have adopted GM cotton like Mexico, Argentina, Colombia, South Africa and Australia, and significant drops in GM cotton production are forecasted in 2006 for South Africa and Mexico.