A Precision Test of Hydrometer Method for Determining Soil Texture
2006
Kim, L.Y. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), E-mail: [email protected] | Han, K.H. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Cho, H.J. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Oh, D.S. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea)
A precision test of hydrometer method, used to determine soil texture, was conducted on selected 10 soil samples, compared to pipette method. Soil texture measurements with hydrometer method were performed with monitoring the temperature of soil suspension in settling cylinder. The temperature and its fluctuation during settling time had a range of 13℃-28℃ and 0.2℃-4.4℃, respectively. The difference of clay content between hydrometer and pipette method were distributed from -6.4% to 4.0%.
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