TCVN 6643-2000
Soil quality.Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

Standard No.

TCVN 6643-2000

Release Date

2008

Published By

VN-TCVN

Latest

TCVN 6643-2000

TCVN 6643-2000 history

• 2008 TCVN 6643-2000 Soil quality.Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant