Study on Optimal Cultivation Technique for New Sweet Potato Cultivar Luoxushu 9
Zhang Yongyue
Liu Zhijian
Qin Suyan
Li Jianguo
Abstract：Using rotational quadratic regression design,the effects of plant density and fertilizers of nitro-gen (N),phosphorus (P)and potassium (K)on yield of new sweet potato cultivar Luoxushu 9 were studied, and the yield function mode was established.The results showed that the order of four factors influencing yield was K>planting density>P>N.In the conditions of this experiment,the optimal cultivation technique for yield of over 45 000 kg/hm2 was planting 58 600 ~63 220 plants per hectare,and applying 138.57 ~161.43 kg/hm2 of urea,245.39~281.97 kg/hm2 of calcium superphosphate and 617.85 ~663.75 kg/hm2 of potas-sium sulphate.
Keywords：Sweet potatoLuoxushu 9Optimal cultivation
Publication Date：2014-05-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 45-48 )