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1 addition chimique
- реакция присоединения (хим.)
реакция присоединения (хим.)
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
chemical addition
Chemical reaction in which one or more of the double bonds or triple bonds in an unsaturated compound is converted to a single bond by the addition of other atoms or groups. (Source: UVAROV)
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Франко-русский словарь нормативно-технической терминологии > addition chimique
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2 protection des cultures
защита посевов
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
crop protection
The problem of crop protection has changed dramatically since 1945. There is now a whole arsenal of chemicals with which to combat agricultural pests and diseases, but this development has itself many drawbacks. Such sophisticated techniques are available only to a minority of farmers; in most parts of the world the standard of crop protection remains abysmally low. In addition, modern crop protection methods have been criticized for relying too heavily on chemical control. Biological controls, both natural and contrived, have been neglected. In some cases involving misuse of agricultural chemicals, crops must be protected from the very measures intended for their protection. Meanwhile previously localized pests and diseases continue to spread worldwide. (Source: WPR)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Франко-русский словарь нормативно-технической терминологии > protection des cultures
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3 rotation des cultures
ротация сельскохозяйственных культур
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
crop rotation
An agricultural technique in which, season after season, each field is sown with crop plants in a regular rotation, each crop being repeated at intervals of several years. Crop rotation minimizes the risks of depleting the soil of particular nutrients. In rotation systems, a grain crop is often grown the first year, followed by a leafy-vegetable crop in the second year, and a pasture crop in the third. The last usually contains legumes; such plants can restore nitrogen to the soil. Notwithstanding, high yields tend to depend upon the continued addition of chemical fertilizers to the soil. (Source: GILP96)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Франко-русский словарь нормативно-технической терминологии > rotation des cultures
См. также в других словарях:
addition product — noun : a product formed by chemical addition see adduct * * * addition compound or addition product noun (chem) One formed by the direct union of two or more substances • • • Main Entry: ↑add * * * addition product, = additive compound. (Cf. ↑ … Useful english dictionary
addition compound — noun : a compound formed by chemical addition; especially : molecular compound * * * Chem. adduct (def. 2). [1920 25] * * * addition compound or addition product noun (chem) One formed by the direct union of two or more substances … Useful english dictionary
addition compound — /əˈdɪʃən ˌkɒmpaʊnd/ (say uh dishuhn .kompownd) noun a compound formed by chemical addition, with no secondary products …
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