| 摘要 |
The invention relates to agriculture, to methods for determination of properties of soil, in particular to open area and quality of detachment of arable layer of soil. Method for determination of open area of soil includes sampling by means of frame, that for on developed section one installs frame on soil with pressing it till leveling with surface of soil. After that one fills inner area of earth with solution of quick-curing substance till saturation of wells in soil in the frame with leveling outer surface at edge of the frame. One keeps it till curing and obtains imprint. From the imprint soil rests are removed, one prepares several cuts and obtains thin sections with following section copying to flat carrier, at that the wells are highlighted with color, one performs calculation of general area of colored and light sections with determination of real open area of soil. The invention provides possibility to obtain results on compactness of distribution of wells by volume of sample, form and size of those, it decreases period needed for implementation of investigations due to use of specially developed optical-electrical device with increase of accuracy of results obtained. |
