An instrument for checking soil structure

Until recently, assessing the structure of soils relied on cumbersome techniques that involved measurement of soil particles. However, it is the pores that determine a particular soil's ability to transport water, nutrients and gases, to support plants and to cope with natural and man-made pressures. Researchers from CSIRO's Centre for Environmental Mechanics developed a portable, easily operated instrument that assesses pore structure by measuring how quickly water will soak into a particular soil. This instrument is known as a disc permeameter.

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