Abstract:

Abstract: Objective: To Screening helianthus tuberosus variety of suitable cultivation for secondary salinization soil of Inland arid irrigated area.Methods: Use randomized block design method to comparative study with new helianthus tuberosus varieties and trdditional varieties.Results Comparing with the traditional varieties , the yield of introduced varieties is higher than the traditional varieties(CK), of which B1 the highest yield, up to 59285.71kg/hm2,and showed significant difference than other varieties, followed by R4and B8;The straw yield of B8 is the highest, reaching 28094.29 kg/hm2, followed by R3 and R4.Conclusion The results show that the helianthus tuberosus variety of B1, R4, B8 is suitabel for secondary salinization soil of Inland arid irrigated area of Qinwangchuan of Yongdeng County ,and have a higher economic yield ,biological yield, and overall efficiency. Key words: helianthus tuberosus; arid irrigation; soil of secondary salinization ; variety screening