Intelligent monitoring and nutrient regulation system for lyonia ovalis seedlings

By combining image acquisition and phosphorus ion selective electrode detection with conductivity feedback, precise nutrient regulation of germinating seedlings of *Fraxinus mandshurica* was achieved, solving the problems of spatial phosphorus deficiency identification and irrigation damage during the rooting period of seedlings and ensuring root health.

CN122397446APending Publication Date: 2026-07-17SHANGRAO NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGRAO NORMAL UNIV
Filing Date
2026-06-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In current seedling management practices, it is difficult to accurately identify spatial phosphorus deficiency symptoms during the rooting period of germinating seedlings of the fragrant fruit tree. Furthermore, traditional irrigation methods can easily lead to root damage or fertilizer burn, making it impossible to achieve precise nutrient regulation.

Method used

An image acquisition and blue shift deviation calculation module is used, combined with a solid contact phosphorus ion selective electrode to detect phosphorus concentration in the root zone and surface layer. Irrigation parameters are dynamically adjusted through low-flow pressure compensation irrigation, and real-time control is performed by combining conductivity feedback to ensure that phosphate fertilizer is accurately delivered to the root system.

Benefits of technology

This technology enables dynamic adjustment of irrigation parameters while avoiding root damage, ensuring healthy root systems in germinating seedlings of the fragrant fruit tree, reducing the risk of osmotic stress and fertilizer damage, and improving the accuracy and efficiency of nutrient regulation.

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Abstract

The present application relates to the technical field of forest seedling and intelligent agriculture, and specifically discloses an intelligent monitoring and nutrient regulation system for sprouting seedlings of fragrant fruit trees, which calculates the red edge position blue shift deviation by collecting the multispectral image of the crown layer of the sprouting seedlings to identify the phosphorus deficiency phenotype; determines the spatial phosphorus deficiency and obtains the root zone reference conductance value by combining the root zone and surface layer phosphorus concentration spatial comparison detection; determines the irrigation interval according to the difference between the reference conductance value and the critical value of fertilizer damage, and precisely applies high-phosphorus water-soluble fertilizer by using pressure-compensating drippers with low flow; after irrigation, the irrigation time is dynamically shortened and the target conductance value is reduced according to the root zone conductance rise amplitude, and after continuous execution for three days, the irrigation is terminated when the blue shift deviation and the color of the newly grown leaves both meet the recovery conditions; the present application realizes early identification and closed-loop feedback regulation of the spatial phosphorus deficiency of the sprouting seedlings of fragrant fruit trees, avoids fertilizer damage and root rot, and improves the accuracy and safety of nutrient regulation.
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