METHOD OF SAMPLING FOR AGROCHEMICAL ANALYSIS AT THE HEIGHT OF ITS LOCATION ABOVE SMALL RIVER WATER LEVEL Russian patent published in 2016 - IPC A01G23/00 G01N1/00 G01N33/24 

FIELD: agriculture.

SUBSTANCE: invention relates to environmental and process monitoring of farmlands. Method involves determining the location, frequency, duration of soil sampling on the investigated territory. Sampling is performed taking into account vertical structure, non-uniformity of soil cover, relief and climate in the area. Sample is taken at depth from 0 to 5 cm, vertical structure of soil cover is taken from each side of small river separately taking into account non-uniformity of soil cover and coastal relief near small river or its feeder. Prior to agrochemical analysis soil samples are cleaned from roots of the herbal plants, and according to agrochemical analysis results static modelling is carried out to detect resistant biotechnical patterns. At the selected site on soil sampling points located on the specific relief sites height of these points above water level of small river or its feeder is measured. Then the soil sample is taken and agrochemical analysis is performed including statistical modelling of measurement data by identifying biotechnological wave patterns of influence of the sampling point height above small river or its feeder water level on agrochemical properties. Thereafter, at other sites on the small river or its feeder catchment heights of specific relief points are measured without soil sampling. Then, based on biotechnological patterns defined on test sites, calculation of approximate content of biochemical substances in 0-5 cm soil layer is made at any catchment area of small river or its feeder at which height of specific relief point was measured.

EFFECT: method allows to reduce labour effort of measurements and increase accuracy of comparing height above the water level with measured concentrations of biochemical substances in soil, as well as enhance functional capabilities of remote probing of height where specific relief points of small river coastal zone are located.

7 cl, 6 dwg, 5 tbl, 1 ex