| 摘要 |
FIELD: agriculture.SUBSTANCE: for analysis of removal with meadow grass of biochemicals the yield fluctuations are accounted depending on the structure of phytocenosis in the form of a ground cover. Conducting statistical data processing of testing the samples of grass from the test plots on the meander, central and terrace near flood plains, and also on the meadows with uneven and tiling location of grass species. And prior to establishment of sample plots the terrain reconnaissance is carried out with the grass cover selected for the measurements, an outline map of location of the components of the grass cover is made, then on each component of the grass cover in the form of a plot at least one temporary test plot is established, the wet and air-dry weight of the sample is determined by weighing on the cut grass sample. At that the tests on biochemical analysis are additionally carried out on the dried samples of grass to determine the concentration of at least three chemical nutrients in the form of mobile nitrogen, potassium and phosphorus oxides, and then by summing the concentrations of these three substances the total summarised removal of substances from the aerial part of grass on all test sites is calculated.EFFECT: invention enables to determine the productivity of meadows.9 cl, 12 dwg, 4 tbl, 1 ex |
