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Millet and Sorghum were Mauritanian's principal crops, followed b rice and corn. Before 1980s, millet and Sorghum accounted for 70-80 p.c. or more of total of total grain production. Rice production in the 1970s averaged 5-10 p.c. , and
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rice production grew in importance, as national
planning empasized irrigated agriculture (which favoured rice) and a change in dietary habits. A few other crops were cultivated. Around 10,000 to 15,000 tons of dates were produced annually
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consumption. During the 1960s, the 1960s,
the traditional production of gum arabic rose to
some 5,000 tons a year. By the 1980s, however, production combined with drought to destroy virtually all of Mauritania's gum-producing
acacia trees.
By 1986 farmers working irrigated lands produced about 35 p.c. of of the country's grain
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at 135,000 hectares, only some 13,700 hectares were in production in 1985-86.The system of land tenure was in trasition in the 1980s . Factors contributing to this transition included government abolition of centuries-old slavery practices involving tribal and ethnic relations between various herding and sedimentary communities, government development policies,
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particularly with regard to land reform and large scale
irrigation schemes, and tremendous shifts in land
settlement and herding patterns because of drought.