撒施石灰对稻田及水稻重金属积累的影响

doi:10.16178/j.issn.0528-9017.20190645

摘要/Abstract

摘要： 为提高农产品的质量安全,以水稻作为试验材料,在4个田畈开展撒施石灰的土壤改良试验示范,并调查其对稻田土壤pH值、重金属(Cd、Pb、Cr、As、Hg)活性,及对水稻吸收积累重金属的影响。结果表明,撒施石灰的改良稻田与未改良稻田相比,早稻及晚稻收获期土壤pH分别显著提高0.38和0.32个单位。在本试验条件下,晚稻比早稻更易吸收积累重金属,而且稻草中的重金属含量远高于稻谷中含量。总体来看,稻田撒施石灰是一项高效率、低成本、易推广的调控农产品重金属积累风险的农艺技术。

关键词: 重金属, 土壤, 水稻, 农艺调控, 石灰

中图分类号:

S511
S147.2

周江明, 姜正孝, 吴慧平. 撒施石灰对稻田及水稻重金属积累的影响[J]. 浙江农业科学, 2019, 60(6): 991-996.

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