GB/T 42490-2023土壤质量土壤与生物样品中有机碳含量与碳同位素比值、全氮含量与氮同位素比值的测定稳定同位素比值质谱法国家标准
英文:Soil quality—Determination of total content and isotope ratio of organic carbon and nitrogen of soil and biological s...
英文:Soil quality—Determination of total content and isotope ratio of organic carbon and nitrogen of soil and biological s...
英文:Soil quality—Determination of nitrogen-15 abundance of inorganic nitrogen in soil—Stable isotope ratio mass spectrome...
英文:Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and ...
英文:Soil quality—Decision unit-multi increment sampling method GB/T 42489-2023介绍: 国家标准《土壤质量 决策单元-多点增量采样法》由TC404(全国土壤质量标准化...
英文:Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and ...
英文:Soil quality—Pretreatment of samples for physico-chemical analysis GB/T 42363-2023介绍: 国家标准《土壤质量 土壤理化分析样品的预处理》由TC404(全...
英文:Safety thresholds of Cd、Pb、Cr、Hg、As in soil for wheat production GB/T 41685-2022介绍: 国家标准《小麦安全生产的土壤镉、铅、铬、汞、砷阈值》由TC404(...
英文:Soil quality—Direct extraction of soil DNA GB/T 41689-2022介绍: 国家标准《土壤质量 土壤样品直接提取DNA的方法》由TC404(全国土壤质量标准化技术委员会)归口,主管部门为...
英文:Soil quality — Field soil description GB/T 32726-2016介绍: 国家标准《土壤质量 野外土壤描述》由TC404(全国土壤质量标准化技术委员会)归口,主管部门为农业农村部。 主要起草单位...
英文:Laboratory methods for determination of microbial soil respiration GB/T 32720-2016介绍: 国家标准《土壤微生物呼吸的实验室测定方法》由TC404(全国土...