As soil water extract contains much water-soluble organic selenium and organic matter, the determination of soil water-soluble selenium should be concentrated and digested beforehand.
由于水溶性有机态硒及有机质的存在，准确测定土壤水溶性硒宜经浓缩、消化处理后进行。
As soil water extract contains much water-soluble organic selenium and organic matter, the determination of soil water-soluble selenium should be concentrated and digested beforehand.
由于水溶性有机态硒及有机质的存在，准确测定土壤水溶性硒宜经浓缩、消化处理后进行。
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