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Nitrogen content in the soil

Nitrogen content in the soil, Total:23 items.

In the international standard classification, Nitrogen content in the soil involves: Soil quality. Pedology, Fertilizers, Farming and forestry.

Indonesia Standards, Nitrogen content in the soil

• SNI 13-4721-1998 Methods for determination of total nitrogen content in soils

Tianjin Provincial Standard of the People's Republic of China, Nitrogen content in the soil

• DB12/T 1270-2023 Determination of cracked nitrogen in soil

VN-TCVN, Nitrogen content in the soil

• TCVN 7373-2004 Soils quality.Index values of total nitrogen content in the soils of Vietnam
• 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

RU-GOST R, Nitrogen content in the soil

• GOST R 53219-2008 Soil quality. Determination of nitrogen in air-dry soils using calcium chloride solution
• GOST 26107-1984 Soils. Methods for determination of total nitrogen

RO-ASRO, Nitrogen content in the soil

• STAS 7184/2-1985 SOILS Nitrogen content determination

Professional Standard - Environmental Protection, Nitrogen content in the soil

• HJ 717-2014 Soil quality.Determination of total nitrogen.Modified Kjeldahl method

Association Francaise de Normalisation, Nitrogen content in the soil

• NF X31-115:2001 Soil quality - Sampling and storage of soil samples in view of determination of mineral nitrogen on fresh soil.
• NF X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.

Sichuan Provincial Standard of the People's Republic of China, Nitrogen content in the soil

• DB51/T 1875-2014 Determination of soil alkaline nitrogen

German Institute for Standardization, Nitrogen content in the soil

• DIN ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)

Jilin Provincial Standard of the People's Republic of China, Nitrogen content in the soil

• DB22/T 2270-2015 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
• DB22/T 2270-2018 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis

NL-NEN, Nitrogen content in the soil

• NEN 5754-1992 Soil - Determination of organic matter content in soil as loss-on-ignition

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Nitrogen content in the soil

• GB/T 42490-2023 Soil quality Determination of organic carbon content and carbon isotope ratio, total nitrogen content and nitrogen isotope ratio in soil and biological samples Stable isotope ratio mass spectrometry

International Organization for Standardization (ISO), Nitrogen content in the soil

• ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis")
• ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

Spanish Association for Standardization (UNE), Nitrogen content in the soil

• UNE 103206:2019 Determination of gypsum content in soils
• UNE 103206:2006 Determination of gypsum content in soils

British Standards Institution (BSI), Nitrogen content in the soil

• BS EN ISO 23753-2:2011 Soil quality. Determination of dehydrogenase activity in soils. Method using iodotetrazolium chloride (INT)

Korean Agency for Technology and Standards (KATS), Nitrogen content in the soil

• KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
• KS I ISO 14255:2009 Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

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