Crop Physiology Lesson: LI-180 Spectrometer and SPAD Meter 📊🌿

Original video: https://youtu.be/N8w_3odkJKg

Lecture on: 19 Jan 2026

Master the essential tools for agricultural research and plant health monitoring. This lecture provides a detailed walkthrough of the LI-COR LI-180 Spectrometer and the SPAD Meter, focusing on how these instruments help quantify the "ALWNG" formula for plant growth and development.

We explore the technical dimensions of light quality using the LI-180, covering the visible light spectrum from 400 to 700 nanometers and the importance of measuring Photosynthetic Photon Flux Density (PPFD). The session also covers the use of the SPAD meter to monitor the progression of Nitrogen deficiency by measuring relative chlorophyll content in leaves.

Keywords: LI-180 Spectrometer, LI-COR, SPAD Meter, Plant Physiology, Light Spectrum Analysis, PPFD Measurement, Nitrogen Deficiency, Chlorophyll Meter, AGR 3301, Agriculture Technology.

Location:

Faculty of Agriculture, Universiti Putra Malaysia

Fakulti Pertanian, Universiti Putra Malaysia, 43000 Seri Kembangan, Selangor

https://maps.app.goo.gl/VePw71hmih6pbHkPA

2.983567621706455, 101.73466120334834

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