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Bonitur

Designation (also boniting) for the classification of the quality (creditworthiness) of agricultural objects under consideration. This can concern certain plant characteristics, the condition of fruit or the condition of soil. In the case of the latter, the soil composition and signs of age are classified taking into account the influencing groundwater and climate conditions. Criteria for creditworthiness are, for example, cultivation restrictions (main crops), workability, thickness, subsoil, cohesion of the crumb, absorption (absorptive capacity) and moisture (see also water extraction and water storage capacity), as well as melioration expenditure (measures to increase the value of the soil). The soils are assessed on a scale of 1 to 100, below 18 a soil is considered to be no longer agriculturally usable.

In a plant assessment, the plant characteristics are described with the main points of habitus (growth), shoots/shoots, leaf characteristics, flowering, scent and fruit characteristics, each with sub-points, some of which contain predefined information (e.g. for leaf/upper side, these are hairy, glandular, glabrous, glabrous, matt, shiny, woolly, tufted). A further criterion is the number of insects living on a plant. Based on this, protective and care measures such as the use of sprays or fertilizers can be determined. It is also a criterion for the selection of plants intended for vegetative propagation. Large-area soil sampling in viticulture is also carried out via satellite, if necessary, on the basis of the NDVI (Normalized Differenced Vegetation Index), which is frequently used in precision viticulture. See also under EUF method and Nmin method.

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