<P> Georgia's climate and soil have made agriculture one of its most productive economic sectors; the 18 percent of Georgian land that is arable provided 32 percent of the republic's NMP in 1990 . In the Soviet period, swampy areas in the west were drained and arid regions in the east were salvaged by a complex irrigation system, allowing Georgian agriculture to expand production tenfold between 1918 and 1980 . Production was hindered in the Soviet period, however, by the misallocation of agricultural land such as the assignment of prime grain fields to tea cultivation and excessive specialization . Georgia's emphasis on labor - intensive crops such as tea and grapes kept the rural work force at an unsatisfactory level of productivity . Some 25 percent of the Georgian work force was engaged in agriculture in 1990; 37 percent had been so engaged in 1970 . In the spring of 1993, sowing of spring crops was reduced by onethird on state land and by a substantial amount on private land as well because of fuel and equipment shortages . For the first half of 1993, overall agricultural production was 35 percent less than for the same period of 1992 . </P> <P> As of 2011, 281,000 hectares of land were sown, representing 35.0% of the arable land; 1,823,000 head of livestock were cataloged; and agri - business represented 9.3% of the national GDP . 2012 preliminary data shows agri - business contribution as 8.4% of GDP . </P> <P> In 1993 about 85 percent of cultivated land, excluding orchards, vineyards, and tea plantations, was dedicated to grains . Within that category, corn grew on 40 percent of the land, and winter wheat on 37 percent . The second most important agricultural product is wine . Georgia has one of the world's oldest and finest winemaking traditions; archeological findings indicate that wine was being made in Georgia as early as 300 B.C. Some forty major wineries were operating in 1990, and about 500 types of local wines are made . The center of the wine industry is Kakhetia in eastern Georgia . Georgia is also known for the high quality of its mineral waters for example Borjomi . </P> <P> Other important crops are tea, citrus fruits, and noncitrus fruits, which account for 18.3 percent, 7.7 percent, and 8.4 percent of Georgia's agricultural output, respectively . Cultivation of tea and citrus fruit is confined to the western coastal area . Tea accounts for 36 percent of the output of the large food - processing industry, although the quality of Georgian tea dropped perceptibly under Soviet management in the 1970s and 1980s . Animal husbandry, mainly the keeping of cattle, pigs, and sheep, accounts for about 25 percent of Georgia's agricultural output, although high density and low mechanization have hindered efficiency . </P>

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