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Drones, Volume 7, Issue 6

2023 June - 69 articles

Cover Story: Due to the growing demand for food in our climate-changing world, the correct prediction of feed resources for animals may be of interest for the scientific community and agricultural managers. To achieve this, a novel approach to the estimation of the fresh biomass of forage crops is presented, based on the normalized difference vegetation index (NDVI) time series taken from a UAS platform and a multispectral camera on board. The second derivative applied to the NDVI time series determined the key points of the growing cycle, whereas the NDVI values themselves were integrated and multiplied by a standardized value of the normalized water productivity (WP*). The procedure is new, yet simple and easy to implement, and it was successfully validated in eight fields of different rainfed intercropping forages in Spain. View this paper
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Drones - ISSN 2504-446X
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