Natural Vegetation and Crop Production

Vegetation Indices in Crop Assessments

Vegetation indices (VI), such as greenness (GVI), perpendicular (PVI), transformed soil adjusted (TSAVI), and normalized difference (NDVI), measure the photosynthetic size of plant canopies and portend yields. A set of equations, called spectral components analysis (SCA), that interrelates VI or cumulative seasonal VI (Y'.VI), leaf area index (L), fractional photosynthetically active radiation ...

Natural radioactivity in Indian vegetation samples

Background: Vegetation (food stuff) is grown in soil that contains many radioactive elements such as 238U (uranium), 232Th (thorium) and 40K (potassium), which may get deposited either due to radioactive fallout or/and by absorption from the soil and can pose serious health hazards. Materials and Methods: Natural radioactivity, radiological hazards and annual effective dose assessment was carri...

Hyperspectral Vegetation Indices and Their Relationships with Agricultural Crop Characteristics

The objective of this paper is to determine spectral quantities of each crop. The best of these two-band indices were further tested to see if soil adjustment or nonlinbands that are best suited for characterizing agricultural crop biophysical variables. The data for this study comes ear fitting could improve their predictive accuracy. The best of the narrow band NDVI models explained 64% to fr...

Object-based crop identification using multiple vegetation indices, textural features and crop phenology

Article history: Received 28 August 2010 Received in revised form 14 January 2011 Accepted 16 January 2011 Available online 25 February 2011

Forage Crop Production