METHOD OF AGROCHEMICAL SURVEY OF AGRICULTURAL LANDS Russian patent published in 2019 - IPC G01N33/24 

FIELD: agriculture.

SUBSTANCE: method of agrochemical survey of agricultural lands refers to agriculture, namely to agrochemical mapping of agricultural lands. Method consists in fact that digitizing boundaries of surveyed territory on selected space image with spatial resolution of 0–30 m, elementary sections are selected for investigation of spectral reflectivity of soil cover by results of remote probing in combination of channels 3:4:7. Statistical modeling is performed using a regression analysis method for all subsets. Contours of calculated values of humus are transferred with pitch of 0.25 % and higher on land use map. An electronic cartogram is then plotted.

EFFECT: use of the invention contributes to the most accurate determination of the humus content on the surveyed territory in order to increase the efficiency of introducing doses of ameliorants and fertilizers taking into account the in-field diversity of humus content in the arable layer of soil and to increase objectivity of traditional agrochemical survey of soil cover, information content and expansion of applicability.

1 cl, 2 dwg