Thus, the adoption of the method of weight loss on ignition, which lacks the contaminant chromium, needs calibration to correct the differences, since the Walker-Black method and sulfa chromic solution as reference methods and estimate with greater precision the percentage of organic matter in soils. (AU) Soil organic matter in soil analysis laboratories evaluation is done using wet combustion methods. But, these methods contaminate the laboratories with chromium waste, so it is impacted find alternative methods to measure soil organic matter. http://cellulitefactorreview.yolasite.com/
The work was Carried out in.
Grape and Wine soil analysis laboratory to the evaluate the loss-on-ignition an alternative to the wet combustion method to measure organic matter content in a group of soils from Rio Grande do Sol in Southern Brazil. Nineteen soils not cultivated with clay content varying from 210 and 530g kg-1, were collected in 0-20cm layer. The soils were dried, 2mm sieved, grounded and prepared organic carbon analysis with loss-on-ignition, Wally-Black and sulfa chromic solution methods. http://cellulitefactorreview.yolasite.com/
The results Showed queen the loss-on-ignition and Walked-Black method, in general, determined smaller percentage of organic matter than the sulfa chromic solution method.
Thus, the adoption at loss-on-ignition method, that doesn’t use the pollutant chromium, needs calibration to correct the differences, since the Black method sulfa chromic solution and are asked to reference methods and estimate with great precision the percentage of soil organic matter. http://cellulitefactoreview.wallinside.com/
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