HE Wan-sheng,HAN Zhong-ming,HAN Mei,et al.Dynamic Variation of Rhizosphere Soil Enzyme Activities from Panax ginseng Fields in Different Cultivated Years[J].Northern Horticulture,2014,38(19):157-160.
不同年限人参根际土壤酶活性动态研究
- Title:
- Dynamic Variation of Rhizosphere Soil Enzyme Activities from Panax ginseng Fields in Different Cultivated Years
- 文章编号:
- 1001-0009（2014）19-0157-04
- Keywords:
- Panax ginseng; season; rhizosphere soil; enzyme
- 分类号:
- S 567.5+1
- 文献标志码:
- A
- 摘要:
- 采用靛酚蓝比色法、硫代硫酸钠滴定法及高锰酸钾滴定法测定了5、7、9月人参根际土壤脲酶、蔗糖酶及过氧化氢酶3种酶的活性，研究不同栽培年限对人参土壤酶活性的影响。结果表明：3种酶的活性在不同年限人参根际土壤各土层中的分布呈现出不同的分布规律。土壤脲酶除了15～25 cm土层R2（2年生人参根际土）土壤中的脲酶活性在5、7、9月呈现下降趋势之外，均在7月份脲酶活性最高。R1（1年生人参根际土）土壤中蔗糖酶的活性在3个月份基本呈上升趋势，而R2、R3（3年生人参根际土）土壤的蔗糖酶和过氧化氢酶不同土层具有不同的动态变化，与人参不同生长发育的时期对养分的吸收不同有关。因此，根据土壤酶活性的变化，在人参的不同发育时期，应该采用不同的栽培管理措施，以满足人参对养分的吸收，为栽培人参的高产提供参考依据。
- Abstract:
- The urease,invertase and catalase activity of rhizosphere soil from cultivated Panax ginseng fields with different years were measured using the indophenol blue colorimetric method,sodium thiosulfate titration and potassiumpermanganate titration,respectively,the effect of different cultivated years on rhizosphere soil enzyme activities from cultivated Panax ginseng fields were studied.The results showed that the urease,invertase and catalase activity of rhizosphere soil from cultivated Panax ginseng fields had different distributing characteristics.The urease activity of rhizosphere soil from P.ginseng fields in different cultivated years was the maximum in the July,except that the urease activity of R2(rhizosphere soil of 2-year-old Panax ginseng) in 15～25 cm deceased in three seasons.The invertase activity of R1(rhizosphere soil of 1-year-old Panax ginseng) increased in May,July and September,and the invertase and catalase activity of R2,R3(rhizosphere soil of 3-year-old Panax ginseng) had different dynamic change in different soil layer,which were related to the difference of absorption nutrients in the different period of growth and development of Panax ginseng.The cultivation management measures should be applies in the different period of growth and development of Panax ginseng in order to provide enough nutrients according the change of enzyme activity,this knowledge was essential for high-yield cultivation of Panax ginseng in Jilin province.
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备注/Memo
第一作者简介：何宛晟（1988-），女，硕士研究生，现主要从事土壤生态学等研究工作。
责任作者：杨利民（1962-），男，博士，教授，现主要从事中药资源等研究工作。E-mail：ylmh777@126.com.
基金项目：国家自然科学基金资助项目（31270371）；国家科技重大专项资助项目（2011BAI03B01-02）。
收稿日期：2014-05-27