Soil total nitrogen
Soil total nitrogen, Total:5 items.
The international standard classification for "Soil total nitrogen" includes: .
The Chinese standard classification for "Soil total nitrogen" includes: Soil and fertilizer in general , Analysis methods for environmental quality of soils .
Professional Standard - Agriculture
- NY/T 1121.24-2012 Soil Testing - Part 24: Determination of Total Nitrogen in Soil - Automatic Kjeldahl Apparatus Method
- NY/T 53-1987 Method for the determination of soil total nitrogen(Semi-micro Kjeldahl method)
Professional Standard - Forestry
- LY/T 1228-1999 Determination of total nitrogen in forest soil
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB 7173-1987 Method for the determination of soil total nitrogen (semi-micro Kjeldahl method)
Professional Standard - Environmental Protection
- HJ 717-2014 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
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