【摘 要】
:
Abstract [Objective] The aim was to study the effects of AMF on distribution of Pb in different chemical forms in rhizosphere soil of upland rice. [Method] A po
【机 构】
:
Beijing City University, Department of Environmental Science and Engineering,State Key Laboratory of
论文部分内容阅读
Abstract [Objective] The aim was to study the effects of AMF on distribution of Pb in different chemical forms in rhizosphere soil of upland rice. [Method] A pot experi- ment was conducted to explore effects of AMF inoculation on distribution of Pb in different forms in rhizosphere of rice (Oryzal sativa L.) with Pb in different concen- trations (0, 300 and 600 mg/kg). [Resultl With inoculation adopted, mycorrzhial colo- nization rate of upland rice under Pb pdlution root declined substantially with Pb in- creasing in soils (P〈0.05). Compared with non-inoculation, rhizosphere pH signifi- cantly enhanced by inoculation; when Pb was at 300 mg/kg, glomalin content in soils improved significantly by inoculation; when Pb was at 600 mg/kg, glomalin con- tent in soils declined substantially (P〈0.05). In addition, inoculation significantly im- proved contents of Pb in exchangeable and organic forms, but lowered Pb in car- bonate bound and Fe-Mn oxides bound forms (P〈0.05). [Conclusion] The research indicated that AMF inoculation would change distribution of Pb in different forms in rhizesphere soils of upland rice.
其他文献
[Objective] This study aimed to investigate the variation characteristics of Yunnan and Korean japonica rice quality under different environmental conditions in
今年68岁的我,已订阅《农家女》12个年头了。为了使《农家女》杂志走进广人妇女的生活,我这个老汉当起了《农家女》的宣传员。我订的这份杂志,除传阅给我的儿女、孙子、外孙外,现
在蛋鸡饲养过程中,只有改变传统观念,才能走出饲养误区。勿看价选鸡苗。首选防疫、管理正规,并能提供种畜禽生产经营许可证、兽医卫生许可证、引种证明的规模化厂家,而且要保证商
l、选用速效性、内吸性农药。如速灭杀丁、灭扫利、速克灵、甲霜灵、久效磷、灭多威等,这类农药:用强、击倒快,用后4~5小时,有80%以上有效成分被作物吸收,即使下雨仍可把害虫、病菌
[Objective] The study was to analyze functional components in improved barley grains. [Method] Genetic variations of functional components in grains among 629 b
[Objective] This research aimed to study the taxonomic status of a poten- tial energy plant, E. kansuensis Prokh (Euphorbiaceae). [Method] Fresh plants col- lecte
[Objective] This study aimed to isolate and identify the chemical con- stituents of Selaginella tamariscina. [Method] The chemical compounds isolated from the w
通过SOFM神经网络能根据数据的相似性对e-供应链中海量的客户数据进行客观的、科学的聚类分析,将客户划分成不同群类,并针对这些群类的不同特征和客户的重要性,采取有针对性
[Objective] This study aimed to investigate the effects of different fertilizer levels on lodging and yield of rice. [Method] A total of four treatments were de
[Objective] This study aimed to separate and purify antibacterial sub- stances from soil Streptomyces sp. CaiF1, and to explore the activities of this sub- stan