Effects of Transplanting Time, Soil Nitrogen Level on Yield and Quality of Purple Sweetpotato cv.Jizishu 1
Hou Fuyun
Li Aixian
Dong Shunxu
Wang Qingmei
Zhang Haiyan
Xie Beitao
Duan Wenxue
Zhang Liming
Abstract：In this study,the purple sweetpotato cv.Jizishu 1 was used as the materials to investigate the effects of different transplanting times,hill loam with different nitrogen levels on yield and quality of purple sweetpotato.The results showed that the yield of root dry matter were more than 9 000.0 kg/hm2 when transplanting before the middle of May,the anthocyanin content reached the highest of 906 mg/kg in fresh root when transplanting in the middle of May.At the middle and low nitrogen levels (38 ～ 86 mg/kg of available nitrogen),the T/R value was good for root growth,the yield of root dry matter was more than 9 000.0 kg/hm2,and the anthocyanin content was more than 800 mg/kg in fresh root.Therefore,Jizishu 1 was suitable to be transplanted in the hill loam with 38 ～ 86 mg/kg of available nitrogen in the middle of May.
Keywords：Jizishu 1Yield of root dry matterAnthocyanin contentTransplanting timeNitrogen level
Publication Date：2017-05-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 57-59 )