有效磷是土壤中可被植物吸收利用的磷化合物，以五氧化二磷(P2O5)形式表示，通常通过盐酸溶液浸提并测定。有效磷包括土壤中磷酸盐与酸化的钼酸铵溶液生成磷钼杂多酸被还原成深蓝色络合物，其颜色深浅与磷含量成正比。它指能被植物根系直接吸收的土磷形态，通常包括浸提出来的土壤溶液中的磷、弱吸附态磷等。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| DB34/T 2266-2014 试验 |
Determination of available phosphorus in pit mud Ammonium fluoride-hydrochloric acid colorimetric method
|
2014-12-17 安徽省标准 |
| DB63/T 1822-2020 试验 |
Determination of Available Phosphorus in Soil by Inductively Coupled Plasma Emission Spectrometry
|
2020-08-11 青海省标准 |
| DB64/T 1714-2020 试验 |
Determination of Available Phosphorus Content in Compound Fertilizers Spectrophotometric Method of Ammonium Vanadium Molybdate
|
2020-05-18 宁夏回族自治区标准 |
| GB 20413-2006 试验 |
Superphosphorate
|
2006-03-14 国家市场监督管理总局 |
| GB/T 8573-2017 试验 |
Determination of available phosphorus content for compound fertilizers
复混肥料 |
2017-12-29 国家市场监督管理总局 |
| GOST R 54650-2011 试验 |
土壤.CINAI改良基尔萨诺夫(Kirsanov)方法对易变的磷和钾化合物的测定 Soils. Determination of mobile phosphorus and potassium compounds by Kirsanov method modified by CINAO
|
2011 俄罗斯标准局 |
| GOST R 54650-2011(2019) 试验 |
土壤.CINAI改良基尔萨诺夫(Kirsanov)方法对易变的磷和钾化合物的测定 Soils. Determination of mobile phosphorus and potassium compounds by Kirsanov method modified by CINAO
|
2011-01-01 俄罗斯标准局 |
| HG/T 2219-1991 规范 |
Granular double superphosphate
总磷 |
1991-11-15 行业标准-化工 |
| HG/T 2220-1991 试验 |
Determination of phosphorus content in double superphosphate quinoline phosphomolybdate gravimetric method
总磷 |
1991-11-15 行业标准-化工 |
| HJ 704-2014 试验 |
Soil quality.Determination of available phosphorus.Sodium hydrogen carbonate solution-Mo-Sb anti spectrophotometric method
|
2014-09-15 行业标准-环保 |
| NY/T 1848-2010 试验 |
中性、石灰性土壤铵态氮、有效磷、速效钾的测定联合浸提-比色法 Method for determination of ammonium nitrogen, available phosphorus and rapidly-available potassium in neutrality or calcareous soil Universal extract-colorimetric method
铵态氮 |
2010-05-20 行业标准-农业 |
| NY/T 1849-2010 试验 |
Method for determination of ammonium nitrogen, available phosphorus and rapidly-available potassium in acid soil Universal extract-colorimetric method
铵态氮 |
2010-05-20 行业标准-农业 |
| SN/T 0566-2011 试验 |
Determination of available phosphorus for import and export calcined aluminium phosphate
|
2011-05-31 行业标准-出入境检验检疫 |
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