Топинамбур (Helianthus tuberosus L.) перспективная культура в условиях Таджикистана

Abstract

Identification of the general size a biomass of american artichoke on the irrigation fields of Gissar and Rasht valleys fluctuates within from 66.5 to 94.2 t/hec. and on the rain field from 30.4 to 72.5 t/hec., yield of tubers from 24.95 to 38.4 t/hec. on the irrigation fields and from 11.85 to 22.95 t/hec. on rain fields. On the american artichoke average the biomass on the irrigation fields makes 78.8 t/hec. and on rein fields 47.4 t/hec, and a crop of tubers accordingly 30.63 and 15.73 t/hec. that testifies to efficiency of cultivation american artichoke in irrigation and rein fields of our republic. The irrigation promote increase of biomass yield of american artichoke on 30.4 t/hec. (64.1 %), yield of tubers on 14.9 t/hec. (94.7 %) in comparison with cultivation without irrigation.