. The deciduous fruit industry of Argentina. Fruit Argentina. Thus, only about 10 percent of the pear trees in the valley are below bearing age. Approxi- mately 70 percent of the valley's total produc- tion of apples and pears is for export; the re- maining 30 percent moves to domestic markets. TABLE 8.—Apples and pears: Trends of produc- tion in Rio Negro Valley, 3-year averages, 1943-57 Year Apples Pears 1946-48 1952-54 1955-57 yiLlion boxes MiLLion boxes Trees in most of the older apple and pear orchards are set very close together
. The deciduous fruit industry of Argentina. Fruit Argentina. Thus, only about 10 percent of the pear trees in the valley are below bearing age. Approxi- mately 70 percent of the valley's total produc- tion of apples and pears is for export; the re- maining 30 percent moves to domestic markets. TABLE 8.—Apples and pears: Trends of produc- tion in Rio Negro Valley, 3-year averages, 1943-57 Year Apples Pears 1946-48 1952-54 1955-57 yiLlion boxes MiLLion boxes Trees in most of the older apple and pear orchards are set very close together (gen- erally 20x20 feet), which makes orchard work difficult and restricts the use of ma- chinery. Growers are now aware of the draw- backs inherent in such a system and trees in the younger plantations are planted nnostly 30x30 feet. The apples and pears of the Rio Negro Valley are of generally good quality and ap- pearance and well graded. Known varieties have typical varietal shape characteristics and fruit is nornnally well colored. Plantations in the Rio Negro are relatively snnall; individual holdings average about 30- 40 acres. This acreage will be divided gen- erally between apples and pears, with apples taking the majority of the space. On sonne orchards, other fruits are grown but the preponderance of the commercial holdings growing and shipping for export are concen- trating on apples and pears. Several farms in the valley were polled for their holdings and averages determined to develop the ap- proximate holdings of "a typical fruit farm" in the Rio Negro region; results of this work are shown in table 9. Irrigation. --The Rio Negro irrigation sys- tem consists of a large main canal running along the north side of the valley with sec- ondary feeder lines crossing the valley throughout the cultivated area. Each planta- tion is supplied by small canals, or ditches, fed by these secondaries. Most plantations are laid out in squares, with each plot equal to
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