Abstract
Nitrogen is an important macronutrient of biomass because it plays an important role in metabolic processes, protein production, amino acid synthesis, enzymes, hormones and is a component of chlorophyll. The assessment of its deficiencies in maize crops is the subject of scientific research. The article presents the results of measurements in controlled laboratory conditions of remote sensing indices of maize cultivated in fertilization variants of 0–150 kg . N/ha. The proposed method of assessing nitrogen deficiency using the Crop Circle sensor allows for autonomous control of precise soil fertilization in the designed solution of a field robot.
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