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Mechanized tillage in the growing of oak plantations

, : Mechanized tillage in the growing of oak plantations. Lesnoe Khozyaistvo (4): 30-32

An account is given of a system of mechanized tillage developed for use in weeding oak shelterbelts in the first few years after planting. The trials were made in 1971-75 on an area of 8.4 ha on partially eroded chernozems. The implements used were modified rotary cultivators with tines 100, 120 and 150 mm long and 16-18 mm in diam. The effectiveness of the treatments was determined by the % destruction of various categories of weeds.


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Molez, J.F., 1998: The historical question of acquired immunodeficiency syndrome in the 1960s in the Congo River basin area in relation to cryptococcal meningitis. Rapidly fatal cryptococcal meningitis has existed in central Africa for more than 30 years, mainly in the lower area of the Congo River basin. Cases have been reported in that area since 1953, especially among young patients during the 1950s. Peop...

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