Normal nitrogen, phosphorus and potassium in soil

Normal nitrogen, phosphorus and potassium in soil, Total:47 items.

The international standard classification for "Normal nitrogen, phosphorus and potassium in soil" includes: Farming and forestry , Soil quality. Pedology , Fertilizers .

The Chinese standard classification for "Normal nitrogen, phosphorus and potassium in soil" includes: Soil and fertilizer in general , Basic standards and general methods on chemical fertilizers .

Professional Standard - Agriculture

NY/T 1849-2010 Method for determination of ammonium nitrogen,available phosphorus and rapidly-available potassium in acid soil—Universal extract-colorimetric method
NY/T 1848-2010 Method for determination of ammonium nitrogen,available phosphorus and rapidly-available potassium in neutrality or calcareous soil—Universal extract-colorimetric method
NY/T 30-1986 Determination of rare earth oxide content in soil - Chlorophonazo - P - Hippuric acid photometric method
NY/T 2273-2012 Soil Amendment - Determination of Phosphorus and Potassium Content
GB 6260-1986 Determination of rare earth oxide content in soil--Chlorophosphonazo-p-hippuric acid photometric method
NY/T 2017-2011 Determination of nitrogen,phosphorus and potassium in plants

GB/T 42487-2023 Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination using automated method with segmented flow analysis
GB/T 42485-2023 Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination with manual method
GB/T 22923-2008 Determination of nitrogen,phosphorus and potassium for fertilizers by auto analyzer

T/NAIA 0280-2024 Determination of total phosphorus, total potassium and fluoride in soil sodium hydroxide fusion method
T/NAIA 0175-2022 Determination of Total Phosphorus and Total Potassium in Soil Acid Digestion-Inductively Coupled Plasma Emission Spectrometry

DB32/T 2602-2013 Indexes of Abundance and Deficiency of Soil Available Phosphorus and Available Potassium in Agricultural Areas Along the River
DB32/T 2601-2013 Indexes of Abundance and Deficiency of Soil Available Phosphorus and Available Potassium in Coastal Agricultural Areas
DB32/T 2273-2012 Indexes of Abundance and Deficiency of Soil Available Phosphorus and Available Potassium in Lixiahe Agricultural Area
DB32/T 1876-2011 Indexes of Abundance and Deficiency of Soil Available Phosphorus and Available Potassium in Agricultural Area of Taihu Lake
DB32/T 2272-2012 Indexes of Abundance and Deficiency of Soil Available Phosphorus and Available Potassium in Hilly Agricultural Area
DB32/T 1875-2011 Indexes of Abundance and Deficiency of Soil Available Phosphorus and Available Potassium in Huaibei Agricultural Area

DB21/T 3950-2024 Technical regulations for regulating nitrogen and phosphorus nutrient leaching loss in facility soils

HJ 634-2012 Soil-Determination of ammonium,nitrite and nitrate by extraction with potassium chloride solution -spectrophotometric methods

DB14/T 1241-2016 Determination of Available Phosphorus in Plant Vegetable Soil
DB14/T 2599-2022 Technical regulations for soil nitrogen and phosphorus summer fill crop control in vegetable greenhouses

GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST 26209-1991 Soils. Determination of mobile compounds of phosphorus and potassium by Egner-Riem method (DL-method)
GOST 26208-1991 Soils. Determination of mobile compounds of phosphorus and potassium by Egner-Riem-Domingo method (AL-method)
GOST 27753.8-1988 Greenhouse grounds method for determination of ammonium nitrogen
GOST R 53219-2008 Soil quality. Determination of nitrogen in air-dry soils using calcium chloride solution
GOST 26427-1985 Soils. Method for determination of sodium and potassium in water extract
GOST 26207-1991 Soils. Determination of mobile compounds of phosphorus and potassium by Kirsanov method modified by CINAO
GOST 26205-1991 Soils. Determination of mobile compounds of phosphorus and potassium by Machigin method modified by CINAO
GOST 26206-1991 Soils. Determination of mobile compounds of phosphorus and potassium by Oniani method modified by CINAO
GOST 26204-1991 Soils. Determination of mobile compounds of phosphorus and potassium by Chiricov method modified by CINAO

TCVN 7375-2004 Soils quality.Index values of total potassium content in the soils of Vietnam
TCVN 7373-2004 Soils quality.Index values of total nitrogen content in the soils of Vietnam
TCVN 7374-2004 Soils quality.Index values of total phosphorus content in the soils of Vietnam

GSO ISO 14255:2013 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
OS GSO ISO 14255:2013 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

KS I ISO 14255-2023 Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
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
KS I ISO 14255-2009(2019) 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 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

UNE 77306:1999 SOIL QUALITY. DETERMINATION OF NITRATE NITROGEN, AMMONIUM NITROGEN AND TOTAL SOLUBLE NITROGEN IN AIR-DRY SOIL USING CALCIUM CHLORIDE SOLUTION AS EXTRACTANT.

AS 1289.4.1.1:2019 Methods of testing soils for engineering purposes, Method 4.1.1: Soil chemical tests — Determination of the organic matter content of a soil — Normal method

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

DIN ISO 14255:1998-11 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)

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