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| Soil available potassium and exchangeable calcium and magnesium were measured by ICP-OES |
| Zhao zhuoling |
| New Energy geological team, Hebei coal geology bureau, Xingtai 054000, China |
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Abstract The determination of soil available potassium and exchangeable calcium and magnesium is an important content of formula fertilization and farmland fertility evaluation, it plays a vital role in the development of soil comprehensive productive capacity. In order to determine the available potassium, exchangeable calcium and exchangeable magnesium in soil samples accurately and rapidly, the icp-aes method was used in this paper, the precision, reliability and stability are good, and the detection limit is low. In this paper, the optimum pre-treatment method of quick-acting potassium and exchangeable calcium-magnesium was studied by orthogonal experiment: constant temperature agitation extraction, extraction temperature 30 ℃, extraction time 120 min, the ratio of soil sample to ammonium acetate extraction solution 1∶30, a satisfactory result can be obtained.
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| [ 1 ] 蔡 毅，于晓丽，王春野，等.原子吸收光谱法同时测定长白山地区土壤速效钾、交换性钙和交换性镁含量[ J ]. 中国标准 化，2019，20：169 - 171.
[ 2 ] 薛 敏，颜学佳，但仕勇. 土壤稀释对速效钾测定的影响[ J ]. 耕作与栽培，2019，3：2223.
[ 3 ] 张 雄. 原子吸收分光光度计测定土壤速效钾[ J ]. 南方农业，2018. 12（ 35 ）：12 - 114.
[ 4 ] LY/T1234-2015《森林土壤钾的测定》[ S ].
[ 5 ] NY/T889-2004土壤速效钾和缓效钾含量的测定[ S ].
[ 6 ] NY/T1121.13-2006《土壤检测第13部分：土壤交换性钙和镁的测定》[ S ].
[ 7 ] 王荣慧，白 冬，章 路，等. 超声浸提ICP-OES法同时测定土壤中交换性钙、镁和速效钾[ J ]. 浙江农业科学，2021，62（ 9 ）：1 853 - 1 856.
[ 8 ] 高 頔，张 清，崔运成，等. 研磨方法对土壤速效钾测定值的影响[ J ]. 中国农学通报，2012，28（ 3 ）：152 - 156.
[ 9 ] 杨小秋，汪 健，王 林，等. 火焰原子吸收光谱法测定植烟土壤中的速效钾[ J ]. 烟草科技，2012，（ 10 ）：65 - 67.
[ 10 ] 徐 进，余劲炎，赵渭生. 土壤物理因素影响钾素转化和扩散的初步研究[ J ]. 浙江农业大学学报，1989，15（ 4 ）：396 - 402.
[ 11 ] 徐明岗， 张一平. 土壤养分扩散的影响因素及其相互关系. 土壤学进展， 1995， 23（ 3 ）： 13 - 20. |
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