[NY/T 301-1995] 有機肥料速效鉀的測定[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了有機肥料速效鉀的測定方法。本標準適用于泥質有機肥料中速效鉀含量的測定。
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發布時間:1995-11-23
實施時間:1996-05-01
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[NY/T 303-1995] 有機肥料粗灰分的測定[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了干灰化法測定粗灰分的方法。本標準適用于不含泥沙質的有機肥料中粗灰分的測定。
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[NY/T 304-1995] 有機肥料有機物總量的測定[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了灼燒法測定有機物總量的方法。本標準適用于有機肥料中有機物總量的測定。
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[NY/T 305.1-1995] 有機肥料銅的測定方法[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了有機肥料測定銅含量的濕灰化一原子吸收光譜法。本標準適用于不含泥質的有機肥料中銅(C的含量..
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[NY/T 305.2-1995] 有機肥料鋅的測定方法[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了有機肥料測定鋅含量的濕灰化一原子吸收光譜法。本標準適用于不含泥質的有機肥料中鋅(Zn)含..
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[NY/T 305.3-1995] 有機肥料鐵的測定方法[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了有機肥料測定鐵含量的濕灰化一原子吸收光譜法。本標準適用于不含泥質的有機肥料中鐵(Fe)含..
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[NY/T 305.4-1995] 有機肥料錳的測定方法[現行]
發布時間:1995-11-23
實施時間:1996-05-01
本標準規定了有機肥料測定錳含量的濕灰化一原子吸收光譜法。本標準適用于不含泥質的有機肥料中錳(Mn)含..
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[NY/T 30-1986] 土壤中氧化稀土總量的測定 對馬尿酸偶氮氯膦分光光度法[現行]
發布時間:1995-10-01
實施時間:1995-10-01
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[GB 12297-1990] 石灰性土壤有效磷測定方法[已作廢]
發布時間:1990-12-01
實施時間:1990-12-01
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[GB 12298-1990] 土壤有效硼測定方法[已作廢]
發布時間:1990-12-01
實施時間:1990-12-01
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[NY/T 148-1990] 石灰性土壤有效磷測定方法[已作廢]
發布時間:1990-03-29
實施時間:1990-12-01
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發布時間:1990-03-29
實施時間:1990-12-01
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發布時間:1989-03-01
實施時間:1989-03-01
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[GB 9838-1988] N土壤、植物標準樣品[已作廢]
發布時間:1989-03-01
實施時間:1989-03-01
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發布時間:1988-06-30
實施時間:1989-03-01
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發布時間:1988-06-30
實施時間:1989-03-01
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發布時間:1988-06-30
實施時間:1989-03-01
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發布時間:1988-06-30
實施時間:1989-03-01
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[NY/T 89-1988] 15N土壤、植物標準樣品[現行]
發布時間:1988-06-30
實施時間:1989-03-01
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