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A study on the changes in rice composition under reduced fertilization conditions using Raman spectroscopy
Changming Li1,2, Yong Tan3, Chunyu Liu1
1School of Physics, Changchun University of Science and Technology, Changchun, 130022, China.
Using microbial and reduced chemical fertilizers improves soil fertility and rice quality. Combining microbial fertilizer with reduced chemical fertilizer decreases rice amylose content, impacting quality.
Area of Science:
- Agricultural Science
- Biotechnology
- Analytical Chemistry
Background:
- Microbial fertilizers enhance soil fertility and rice quality compared to chemical fertilizers.
- Amylose content is a key indicator of rice quality.
Purpose of the Study:
- To investigate the impact of combined microbial and reduced chemical fertilizer application on rice amylose content.
- To establish a Raman spectroscopy-based model for detecting rice amylose content.
Main Methods:
- Theoretical calculations and Raman spectroscopy were used to analyze rice samples.
- A recognition model was developed to correlate spectral data with amylose content.
- Characteristic Raman peaks (400-1400 cm⁻¹) were identified and analyzed.
Main Results:
- Raman spectroscopy revealed distinct peaks related to amylose structure.
- A decreasing trend in rice amylose content was observed with increasing microbial fertilizer and reduced chemical fertilizer application.
- The established model effectively detected amylose content based on spectral intensity.
Conclusions:
- Combined application of microbial and reduced chemical fertilizers can modulate rice amylose content.
- Raman spectroscopy offers a viable method for assessing rice quality parameters like amylose content.
- Optimizing fertilizer strategies using microbial and reduced chemical inputs can enhance rice quality.
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