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研究了排水条件下施用腐熟有机物料、种稻改良滨海盐渍土内源铁形态分布．结果表明，单淹水利于土中无定形氧化铁、络合态铁、有效态铁以及氧化铁活化度升高，并且络合态铁与有效态铁升高程度，低盐土壤显著；晶形氧化铁变化不明显，土中可能存在其它形态铁向晶形氧化铁转化．种稻不施有机物料，根际络合态铁和有效态铁富集；无定形氧化铁和晶形氧化铁亏缺．根际氧化铁活化度稍低于非根际．增施有机物料利于两种盐渍土根际内外铁形态向络合态铁和无定形氧化铁转化；有效态铁和氧化铁活化度提高，低盐土壤根际较明显
Study on the application of decomposed organic materials under drainage conditions to improve the distribution of endogenous iron in coastal saline soil. The results show that the single submerged water is beneficial to the formation of amorphous iron oxide, complex iron, active iron and iron oxide in soil, and the increase of complex iron and effective iron is significant in low salt soil; Iron is not obvious changes in the soil may exist in other forms of iron to crystalline iron oxide transformation. The organic matter was not applied to paddy rice, the rhizosphere complexated iron and available iron were enriched, and the amorphous iron oxide and crystalline iron oxide were deficient. Rhizosphere iron oxide activation slightly lower than non-rhizosphere. The addition of organic materials is beneficial to the transformation of both intra-and inter-lateral iron forms into chelated and amorphous ferric oxides in the two saline soils. The activation of available ferric and ferric oxides is enhanced, and the rhizosphere of low-salinity soils is more obvious