土壤有机质测定的绿色消化技术研究
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摘要
[目的]为便捷、准确、绿色化地测定山地和耕地土壤有机质含量。[方法]采用烘箱加热法,对土壤有机质测定的保温温度、时间进行研究,分析其与油浴法测定土壤有机质含量的差异。[结果]烘箱加热法测定土壤有机质的最优保温温度为170℃,最优保温时间为25～30 min。选择保温温度170℃、保温时间30 min的条件测定的土壤有机质含量与油浴法测定值显著相关。2种方法测定的土壤有机质含量没有明显差异,烘箱加热法测定的有机质标准差、相对标准偏差较油浴法测定的小。[结论]烘箱加热法测定土壤有机质有较高的准确度和重现性,可准确分析山地和耕地土壤中有机质含量。
[Objective]In order to determine the content of soil organic matter in mountain and arable land in a convenient,accurate and green manner.[Method]The heat preservation temperature and time of soil organic matter determination were studied by using oven heating method,and the difference between soil organic matter content by oven heating method and oil bath heating method was analyzed.[Result]The optimum condition for determination of soil organic matter by oven heating method was 170 ℃ under thermal insulation 25-30 min.And the content of soil organic matter determined by selecting 170 ℃ temperature and 30 min time was extremely significantly related to that determined by oil bath method.There was no significant difference in soil organic matter content measured by the two methods,and the standard deviation and relative standard deviation of organic matter determined by oven heating method were smaller than those determined by oil bath heating method.[Conclusion]The determination of soil organic matter by oven heating method has high accuracy and reproducibility,and it can accurately analyze the content of organic matter in the soil of mountains and arable land.
[Objective]In order to determine the content of soil organic matter in mountain and arable land in a convenient,accurate and green manner.[Method]The heat preservation temperature and time of soil organic matter determination were studied by using oven heating method,and the difference between soil organic matter content by oven heating method and oil bath heating method was analyzed.[Result]The optimum condition for determination of soil organic matter by oven heating method was 170 ℃ under thermal insulation 25-30 min.And the content of soil organic matter determined by selecting 170 ℃ temperature and 30 min time was extremely significantly related to that determined by oil bath method.There was no significant difference in soil organic matter content measured by the two methods,and the standard deviation and relative standard deviation of organic matter determined by oven heating method were smaller than those determined by oil bath heating method.[Conclusion]The determination of soil organic matter by oven heating method has high accuracy and reproducibility,and it can accurately analyze the content of organic matter in the soil of mountains and arable land.
引文
[1] 黄昌勇,徐建明.土壤学[M].3版.北京:中国农业出版社,2010:29.
[2] AMINIYAN M M,SINEGANI A A S,SHEKLABADI M.The effect of zeolite and some plant residues on soil organic carbon changes in density and soluble fractions:Incubation study[J].Eurasian january of soil science,2016,5(1):74-83.
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[4] 刘肖.初探土壤有机质测定方法的改进[J].中国农学通报,2014,30(12):147-150.
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[9] 石朴杰,王世东,张合兵,等.基于高光谱的复垦农田土壤有机质含量估测[J].土壤,2018,50(3):558-565.
[10] 李阳,刘新璐,彭杰,等.基于可见光近红外光谱的南疆荒漠土壤有机质反演研究[J].土壤通报,2018,49(4):767-772.
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[12] 任意,辛景树,田有国,等.土壤检测第6部分:土壤有机质的测定:NY/T 1121.6—2006[S].北京:中国农业出版社,2006:1-3.
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[14] 李美蓉,邵洪扬,周海刚,等.硅钼蓝光度法测定油田采出水中可溶性SiO2含量的改进[J] 实验室研究与探索,2018,37(12):4-8.
[15] 盛丽,苏碧泉,任爱梅.分析化学中的准确度与精密度[J].化学教学,2004(4):48.
[16] 张钧.土壤有机质测定全程质量控制[J].四川环境,2014,33(2):6-12.
[17] 白亚丽.土壤肥料分析的准确度和精密度分析[J].吉林农业,2014(6):84.
[2] AMINIYAN M M,SINEGANI A A S,SHEKLABADI M.The effect of zeolite and some plant residues on soil organic carbon changes in density and soluble fractions:Incubation study[J].Eurasian january of soil science,2016,5(1):74-83.
[3] 陈道云,赵赛男,石宇,等.吉首市耕地土壤有机质现状及改良对策[J].湖南农业科学,2018(10):60-63,66.
[4] 刘肖.初探土壤有机质测定方法的改进[J].中国农学通报,2014,30(12):147-150.
[5] 鲍士旦.土壤农化分析[M].3版.北京:中国农业出版社,2000:25-38.
[6] 牛永绮,陈兰生.土壤有机质测定方法的进展[J].干旱环境监测,1998,12(2):97-100.
[7] 吴才武,夏建新,段峥嵘.土壤有机质测定方法述评与展望[J].土壤,2015,47(3):453-460.
[8] 李婧.土壤有机质测定方法综述[J].分析实验室,2008,27(S1):154-156.
[9] 石朴杰,王世东,张合兵,等.基于高光谱的复垦农田土壤有机质含量估测[J].土壤,2018,50(3):558-565.
[10] 李阳,刘新璐,彭杰,等.基于可见光近红外光谱的南疆荒漠土壤有机质反演研究[J].土壤通报,2018,49(4):767-772.
[11] 于彬,郭彦青,杨乐苏.化学氧化法测定土壤有机质的研究进展[J].广东林业科技,2007,23(1):100-103.
[12] 任意,辛景树,田有国,等.土壤检测第6部分:土壤有机质的测定:NY/T 1121.6—2006[S].北京:中国农业出版社,2006:1-3.
[13] 苏志,李涛,梁友信,等.工作场所有害因素职业接触限制第1部分:化学有害因素:GBZ 2.1—2007[S].北京:人民卫生出版社,2008:1-22.
[14] 李美蓉,邵洪扬,周海刚,等.硅钼蓝光度法测定油田采出水中可溶性SiO2含量的改进[J] 实验室研究与探索,2018,37(12):4-8.
[15] 盛丽,苏碧泉,任爱梅.分析化学中的准确度与精密度[J].化学教学,2004(4):48.
[16] 张钧.土壤有机质测定全程质量控制[J].四川环境,2014,33(2):6-12.
[17] 白亚丽.土壤肥料分析的准确度和精密度分析[J].吉林农业,2014(6):84.