现行

LY/T 1228-2015

森林土壤氮的测定
Nitrogen determination methods of forest soils

2015-10-19

现行

LY/T 1231-1999

森林土壤铵态氮的测定
Determination of ammonium nitrogen in forest soil

1999-07-15

现行

LY/T 1228-1999

森林土壤全氮的测定
Determination of total nitrogen in forest soil

1999-07-15

现行

LY/T 1237-1999

森林土壤有机质的测定及碳氮比的计算
Determination of organic matter in forest soil and calculation of carbon-nitrogen ratio

1999-07-15

现行

LY/T 1269-1999

森林植物与森林枯枝落叶层全氮的测定
Determination of total nitrogen in forest plant and forest floor

1999-07-15

现行

LY/T 1223-1999

森林土壤坚实度的测定
Determination of forest soil hardness

1999-07-15

现行

LY/T 1219-1999

森林土壤温度的测定
Determination of forest soil temperature

1999-07-15

现行

LY/T 1224-1999

森林土壤土粒密度的测定
Determination of soil particle density in forest soil

1999-07-15

现行

LY/T 1266-1999

森林土壤有效硅的测定
Determination of available silica in forest soil

1999-07-15

现行

LY/T 1218-1999

森林土壤渗透率的测定
Determination of forest soil percolation rate

1999-07-15

现行

LY/T 1265-1999

森林土壤有效硫的测定
Determination of available sulphur in forest soil

1999-07-15

现行

LY/T 1263-1999

森林土壤交换性锰的测定
Determination of exchangeable manganese in forest soil

1999-07-15

现行

LY/T 1262-1999

森林土壤有效铁的测定
Determination of available iron in forest soil

1999-07-15

现行

LY/T 1261-1999

森林土壤有效锌的测定
Determination of available zinc in forest soil

1999-07-15

现行

LY/T 1260-1999

森林土壤有效铜的测定
Determination of available copper in forest soil

1999-07-15

现行

LY/T 1259-1999

森林土壤有效钼的测定
Determination of available molybdenum in forest soil

1999-07-15

现行

LY/T 1255-1999

森林土壤全硫的测定
Determination of total sulphur in forest soil

1999-07-15

现行

LY/T 1242-1999

森林土壤石炭施用量的测定
Determination of lime requirement in forest soil

1999-07-15

现行

LY/T 1240-1999

森林土壤交换性酸的测定
Determination of exchangeable acidity in forest soil

1999-07-15

现行

LY/T 1238-1999

森林土壤腐殖质组成的测定
Determination of humus fractionation in forest soil

1999-07-15