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Agrometeorologiceskoe obosnovanie fitomelioracii pastbisc pustynnoj zony Kazahstana Bases agrométéorologiques de l'amélioration de la végétation des pâturages dans la zone désertique du Kazakhstan
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phytomeliorative measures in 10-30 % of years only at favourable at atmospheric and soil moistening. The losses caused by negative climatic conditions influence on the early stages of phytomeliorants' development are calculated. - (L'A.).