In order to further promote the yield of turnip and improve the economic benefits of planting turnip,the local variety of Yushu turnip in Yushu Tibetan Autonomous Prefecture was used as plant materials,and the effects of N,P and K fertilizers of different proportions on root length,root thickness and fresh mass of Yushu turnip were studied with no fertil-ization(CK)as the control.The membership function was used to comprehensively evaluate the agronomic traits,and the economic benefits from each fertilization treatment were compared.The results showed that the root length was longest under NP10 treatment with length of 5.53 cm.The best effect of promoting root transverse diameter and fresh mass was under N20 treatment,which were 9.43 cm and 299.33 g,respectively.The root shape index reached 0.69 under NP10 treat-ment and the root shape was nearly circular with good commodity.The comprehensive evaluation results showed that the membership function value of 20.00 kg urea applied every 667 m2 was the highest,reaching 0.84,and the economic bene-fit was 1 006.39 Yuan.In summary,the application of 20 kg urea every 667 m2 can promote the yield and economic bene-fits of Yushu turnip,and the research results provides a reasonable fertilization scheme for subsequent high-yield cultiva-tion of Yushu turnip.
维普
万方数据