植物中氮、磷、钾的测定
Determination of nitrogen,phosphorus and potassium in plants

2011-09-01

进出口化肥检验方法 自动分析仪测定氮含量
Chemical analysis of fertilizers for import and export -Determination of nitrogen content by auto analyzer

2002-03-15

复混肥料中总磷、钾含量测定 X射线荧光光谱法
Determination of total phosphorus,potassium content in compound fertilizers - X-ray fluorescence spectrometry

2014-01-13

森林植物与森林枯枝落叶层氮、磷、钾、钠、钙、镁的测定
Determination of total nitrogen,phosphorus,potassium,sodium,calcium,magnesium in forest plant and forest floor

1999-07-15

Fertilizers, soil conditioners and beneficial substances — Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers
肥料、土壤改良剂和有益物质无机肥料中柠檬酸铵、乙二胺四乙酸二钠可溶性磷和钾的ICP-OES测定

2023-07-27

酸性土壤铵态氮、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 acid soil Universal extract-colorimetric method

2010-05-20

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

2010-05-20