METHOD OF SOIL APPRAISAL Russian patent published in 2011 - IPC A01G7/00 G01N33/24 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture. In the method the average or weighted average crop capacity of the main crops is expressed in the physical weight of the main produce or in its equivalent - fodder units, 50 c/ha of which are taken as 100 points. To identify a class quality point, indices of total weighted average biological efficiency of soils fertility and natural soil-climate indices of soils fertility are produced in appraisal field experiments, which are used to calculate actual individual class quality point for various soils by the integral-differential method through detection of a significance number in the significance row of total weighted average biological efficiency of fertility or (and) natural soil-climatic indices of soils fertility with subsequent summation of significance nunbers and division of their sum into total quantity of indices, and finding integral and differential weighted average significances of biological efficiency of fertility or (and) natural soil-climatic indices of soil fertility for each type of soil separately. An individual class quality rating is calculated by division of 100 into a weighted average differential index of significance of biological efficiency of fertility or (and) into weighted average differentiated index of significance of natural soil-climatic fertility of soils.

EFFECT: method makes it possible to increase accuracy and ensures universality of soils appraisal.

3 cl, 4 tbl, 1 ex