Tho Nguyen

5 Questions 8 Answers 0 Followers

Questions related from Tho Nguyen

Validation of analytical method: Intermediate precision ?

Hi, everyone I am wondering how to calculate the intermediate precision during the validation of a new analytical method (for soil analysis). Please see the example below: For one soil sample (10...

10 October 2019 7,371 5 View

In which soils rice husk biochar should be applied as soil amendment ?

Personally I think rice husk biochar (often alkaline) could be used on acidic Acrisols (upland areas) , sandy soils, basaltic soils in high-terraced areas (also acidic), acid suphate soils...

03 March 2019 7,466 3 View

Lime Buffering Capacity of acid soils: conversion from cmol (OH-)/kg/pH to mg CaCO3/kg/pH ?

Hi, colleagues. I am encountering a problem regarding the calculation of lime buffering capacity. You see that the lime buffering capacity (LBC) of soils has the unit of cmol (OH-)/kg/pH. However,...

10 October 2018 7,905 0 View

Which statistical test to compare the differences in chemical parameters among different soil layers ?

Totally I have 7 boreholes for soil, each was dug to the depth of 60 cm (10 cm intervals). I've got to compare the differences in chemical parameters among each of the six layers. So, what...

07 July 2016 5,794 7 View

Calculation of soil CEC

I am a litle bit confused with the calculation of soil CEC (by summing up the major cations). Imagine you have a soil sample in which the contents of Ca is 5 meq/100g (100 mg Ca/100g soil), Mg is...

01 January 1970 4,189 10 View