Remote Sensing based Technologies

Introduction

Monitoring crop growth condition for site specific management

Improved physical model based technique for quantitative assessment of plant biophysical parameters from remote sensing and there by monitoring crop health at regional scale. The methodology used the radiative transfer model, PROSAIL for retrieval of leaf area index (LAI), chlorophyll (Cab) and water content (Cw) of wheat crop in Trans-Gangetic Plains through its inversion. The method was evaluated and found better than existing empirical approaches. The parameters thus derived were composited to develop a vegetation health index (VHI) which can be used for monitoring crop growth condition at regional scale for site specific management.

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Indian Agricultural Research Institute,
New Delhi