A method for improving the growth and development of sweet potato root systems

A foliar growth promoter prepared by mixing chamomile extract and ectoine fermentation broth, combined with ε-polylysine hydrochloride slow-release antibacterial agent, solves the problem of sweet potato root growth and development being affected by region and climate, and significantly improves the growth level of sweet potato plants and roots.

CN122250342APending Publication Date: 2026-06-23XUZHOU INST OF AGRI SCI IN JIANGSU XUHUAI DISTRICT (JIANGSU XUZHOU SWEETPOTATO CENT)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XUZHOU INST OF AGRI SCI IN JIANGSU XUHUAI DISTRICT (JIANGSU XUZHOU SWEETPOTATO CENT)
Filing Date
2026-04-02
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, single biological agents are difficult to effectively improve the growth and development of sweet potato roots under different regional and extreme climatic conditions, which limits the development of crops such as sweet potatoes.

Method used

A foliar growth promoter prepared by mixing chamomile extract and ectoine fermentation broth was applied by spraying and soaking. Combined with ε-polylysine hydrochloride as a rhizosphere slow-release antibacterial agent, the optimized concentration was diluted 10,000 times to promote sweet potato root growth.

Benefits of technology

It significantly increases the fresh weight of sweet potato plants and the number of underground roots, enhances the sweet potato's resistance to extreme weather, is low in cost and easy to operate, has high product stability, and ε-polylysine hydrochloride has high safety.

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Abstract

The present application aims at providing a method for improving the growth of sweet potato root system, spraying and soaking the leaf surface with a growth-promoting liquid, and the spraying and soaking method is simple, low in cost and efficient in promoting the growth of the underground root system and plant of sweet potato. The present application can greatly exert the efficacy by screening different spraying and soaking concentrations of the leaf surface growth-promoting liquid, greatly improve the growth level of the root system of sweet potato, and effectively cope with the risks brought by various extreme weather to the sweet potato industry.
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