The inclusion of the real time satellite and Automatic Weather Station (AWS) data will address the crop health monitoring at large area like district, state and country level in real time.
Normalised difference vegetative index (NDVI) is a key vegetation inde to monitor crop health in remote sensing. NDVI measures crop health by difference between near-infrared and red light. The cholorophyll in plant leaves strongly absorbs visible light (from 0.4 to 0.7 mm – red colour) for use in photosynthesis. And the cells structures of the plant leave strongly reflect the near-infrared light (from 0.7 to 1.1 mm) Differnce of these two wavelengths gives the states of plant health as a healthy plant absorbs more red light and reflects near Infra-red wavelength. Stressed plant cannot absorb more red light as lack of cholophyll in leaves and absorbs near infra-red due to cell damages.
Normalised difference vegetative index (NDVI) is a key vegetation inde to monitor crop health in remote sensing. NDVI measures crop health by difference between near-infrared and red light. The cholorophyll in plant leaves strongly absorbs visible light (from 0.4 to 0.7 mm – red colour) for use in photosynthesis. And the cells structures of the plant leave strongly reflect the near-infrared light (from 0.7 to 1.1 mm) Differnce of these two wavelengths gives the states of plant health as a healthy plant absorbs more red light and reflects near Infra-red wavelength. Stressed plant cannot absorb more red light as lack of cholophyll in leaves and absorbs near infra-red due to cell damages.
Creating village virtual weather stations in order to address the problems related to the lack of historical climate data at village-level
Normalised difference vegetative index (NDVI) is a key vegetation inde to monitor crop health in remote sensing. NDVI measures crop health by difference between near-infrared and red light. The cholorophyll in plant leaves strongly absorbs visible light (from 0.4 to 0.7 mm – red colour) for use in photosynthesis. And the cells structures of the plant leave strongly reflect the near-infrared light (from 0.7 to 1.1 mm) Differnce of these two wavelengths gives the states of plant health as a healthy plant absorbs more red light and reflects near Infra-red wavelength. Stressed plant cannot absorb more red light as lack of cholophyll in leaves and absorbs near infra-red due to cell damages.