丛枝菌根接种与磷添加对采煤区复垦土壤中玉米光合作用和生长的影响

郝鲜俊; 张铁全; 洪坚平

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Effects of ArbuscularMycorrhizalFungal Inoculation and Phosphorous Addition on Maize Photosynthesis and Growth in AReclaimed Soil of Mining Area

首发时间：2013-01-17

HAO Xianjun ¹
HAO Xianjun,（1976-），female，Master，Soil Science.
Zhang Tiequan ² HONG Jianping ³
HONG Jianping（1958-），male，Ph.D.,Professor,Soil Science

1、Faculty of Resources and Environment, Shanxi Agriculture University, Shanxi Taigu 030801
2、Greenhouse and Processing Crops Research Center, Agriculture and Agri-Food Canada, Harrow, ON Canada N0R 1G0
3、Faculty of Resources and Environment, Shanxi Agriculture University, Taigu County, Shanxi Province, China 030801

Abstract：Phytoremediation of the mining disturbed land has been a challenge due mostly to the low bioavailability of soil indigenous phosphorus (P), low water retention capacity and the low fertilizer P use efficiency in arid and semiarid regions. Arbuscular mycorrhizal fungi (AMF) has been shown to increase crop P uptake. However, inoculation effectiveness and responses of maize in the remediation of mining disturbed soils are unknown. In addition, the quantitative relationship between amendment of fertilizer P and photosynthesis and growth parameters are scarce. A greenhouse experiment was conducted to evaluate the effects of AMF (Glomus Mosseae) inoculation and fertilizer P addition on and to quantify the relationship with leaf photosynthesis and growth of maize. Root colonization, photosynthesis, water use efficiency and growth parameters of maize were either linearly or quadratically related to fertilizer P rate. Root colonization and net photosynthetic rate (Pn) of maize were estimated to obtain maximum value at 73 and 80 mg kg-1 P rate in rehabilitated mining area regardless of inoculation of AMF, while maize dry mass inoculated with AMF will attain maximum at 75 mg kg-1 P rate. Inoculation with AMF decreased the influence of fertilizer P to the above mentioned parameters. In addition, at the range of 0-100 mg kg-1 P rate inoculation with AMF significantly increased by 12.2 % on Pn, 21.9 % on leaf area, 31.7 % on shoot dry mass and 44.3 % on P use efficiency, while decreased 26.4 % on Tr and 28.9 % on Ci, related to NAMF. Inoculation of AMF had no effects on plant height. In conclusion, aforementioned parameters were dependent of fertilizer P amendment in P-deficiency rehabilitated mining area. Inoculation with G. Mosseae and applying of fertilizer P informed symbiosis and increased photosynthesis and growth of maize. The results are practically significance for the phytoremediation program of rehabilitated mining areas once validated under field conditions.

keywords： Arbuscular mycorrhiza fungus (AMF) Land reclamation Mining Maize Photosynthesis Phosphorus Phosphorus use efficiency Water use efficiency

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丛枝菌根接种与磷添加对采煤区复垦土壤中玉米光合作用和生长的影响

郝鲜俊 ¹
HAO Xianjun,（1976-），female，Master，Soil Science.
张铁全 ² 洪坚平 ³
HONG Jianping（1958-），male，Ph.D.,Professor,Soil Science

1、山西农业大学资源环境学院，山西太谷 030801
2、加拿大农业与农产品部温室与加工作物研究中心
3、山西农业大学资源环境学院

摘要：在干旱和半干旱地区，矿区土地的植物修复由于土壤固有磷的生物利用度、低水分保持能力和低的肥料磷利用效率已经成为一个挑战。丛枝菌根可以增加植物对磷的吸收。然而，在矿区扰动土壤玉米中的接种有效性和玉米的反应上还不为人所知。此外，关于肥料磷和植物修复以及生长参数之间的定量关系也还知之甚少。通过温室试验研究球囊丛植菌根接种和磷添加对玉米叶片光合作用和生长的影响。玉米根际区系、光合作用、水分利用率和生长参数与磷肥的施用量呈线性或二次曲线关系。不管是否接种丛枝菌根，玉米根际区系和净光合速率分别在磷施用量为73 mg kg-1 和80 mg kg-1出现最大值；接种丛枝菌根后，玉米干物质积累量在磷施用量为75 mg kg-1达到最大。接种AMF降低了磷肥对以上所涉及指标的影响。此外，在0-100mg/kg的范围内，接种从枝菌根磷的比例在不接种的基础上显著增加了12.2%，叶面积、茎干干物质、磷利用效率分别显著增加了21.9%，44.3%，26.4%，而在Tr和Ci上分别降低了26.4%和28.9%。接种从枝菌根对植株的高度没有影响。因此，前面提到的参数依赖于肥料磷在磷缺乏的矿区土壤的改善。灌输真菌和磷肥的施用能共生并增加了玉米的生长和光合作用。结果对于验证在农田环境下矿区土壤的生物修复具有现实意义。

关键词：土壤改良丛枝菌根矿区玉米光合作用磷磷利用效率水分利用效率

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HAO Xianjun,Zhang Tiequan,HONG Jianping. Effects of ArbuscularMycorrhizalFungal Inoculation and Phosphorous Addition on Maize Photosynthesis and Growth in AReclaimed Soil of Mining Area[EB/OL]. Beijing:Sciencepaper Online[2013-01-17]. https://www.paper.edu.cn/releasepaper/content/201301-795.

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论文编号	201301-795
论文题目	丛枝菌根接种与磷添加对采煤区复垦土壤中玉米光合作用和生长的影响
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