ISHS Acta Horticulturae 99: Symposium on Substrates in Horticulture other than Soils In Situ
STANDARDIZED METHODS FOR THE PHYSICAL ANALYSIS OF PLANT SUBSTRATES |
| Author: | H. van Dijk |
| Abstract:
A set of "reference" and"routine" procedures for the measurement of the physical conditions in plant substrates were tested in seven institutes. The measurements included bulk density, pore volume and volume fractions of water and air at certain moisture potentials (pF-values). The precision within the institutes was found to be good (i.e. the analytical errors of the single analyses were small). The agreement between the institutes still leaves much to be desired. To improve standardization, continued interlaboratory testing is recommended. | |
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