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Dryland farmers typically obtain
less than half the yields that research stations
can achieve under similar conditions.
In Andra Pradesh, India, for example, research
scientists have been able to harvest about 6 tonnes
of grain and pulses per hectare in a double
cropping system. Traditional single crop systems in
the area typically yield only about 0.6 tonnes of
grain or 1.2 tonnes of chickpeas per hectare.
Some rice farmers in Southeast Asia have
recently neared research station yields. But
further scientific advances could push yields
higher. The International Rice Institute aims to
achieve annual yields of 15 tonnes per hectare,
compared with the current world average of 3.5
tonnes.
If average annual farm yields per hectare could
approach two-thirds of research station yields
under comparable climatic conditions, enough food
will be available to feed the hungry millions of
tomorrow.
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