农业用硝酸铵钙
Calcium ammonium nitrate for agricultural use
2016-01-15
NY/T 2269-2020
农业用硝酸铵钙及使用规程
Calcium ammonium nitrate and code of agricultural practice
2020-07-27
HG/T 3787-2005
工业硝酸钙
Calcium nitrate for industrial use
2005-07-10
GB/T 20784-2018
农业用硝酸钾
Potassium nitrate for agricultural use
2018-05-14
HG/T 4852-2016
农业用硝酸铵钾
Potassium ammonium nitrate for agricultural use
2016-01-15
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.
土壤质量 以氯化钙溶液为萃取剂测定风干土壤中的硝态氮、铵态氮和可溶性总氮
1999-05-26
KS I ISO 14255(2019 Confirm)
토양의 질－공기 건조 토양에서 염화칼슘용액으로 추출한 질산성 질소, 암모니아성 질소 및 총 가용성 질소 측정 방법
土壤质量用氯化钙溶液作萃取剂测定风干土壤中硝态氮、铵态氮和总可溶性氮
2009-12-18
KS I ISO 14255(2023 Confirm)
토양의 질－공기 건조 토양에서 염화칼슘용액으로 추출한 질산성 질소, 암모니아성 질소 및 총 가용성 질소 측정 방법
土壤质量.用氯化钙溶液作萃取剂测定空气干燥土壤中的硝酸盐氮、铵态氮和总可溶性氮
2009-12-18
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
土壤质量——氯化钙溶液萃取法测定风干土壤中硝态氮、铵态氮和可溶性总氮
1998-04-23
DIN ISO 14255
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)
土壤质量.用氯化钙溶液作为萃取剂测定风干土壤中的硝酸盐氮、铵态氮和总可溶性氮（ISO 14255-1998）