1. Influence of B-permeated goethite on soil B fraction and its availability to rape seedlings ( brassica napus L.).
- Author
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Ren, Liying, Zhu, Duanwei, Dong, Yuliang, Liao, Shuijiao, and Cui, Jingzhen
- Subjects
RAPE (Plant) ,GOETHITE ,BORON in soils ,SOIL mineralogy ,TRACE elements in plant nutrition ,PLANT-soil relationships ,SEEDLINGS ,BRASSICA - Abstract
The purpose of the study was to determine the effect of boron (B)-permeated goethite on soil B fractionation and the availability of this B fraction to rape seedlings (Brassica napusL.). For this purpose, goethite and two kinds of B-permeated goethite were synthesized and their processes in soil were simulated. Plant availability of B adsorbed or occluded on goethite was investigated with rape seedling. Results found that both ad-B-goethite and oc-B-goethite significantly increased the water soluble B (WS-B), specifically adsorbed B (SPA-B), B occluded in amorphous iron (Fe) and aluminum (A1) oxides (AMO-B) and crystalline Fe and Al oxides (CRO-B) content in the soil, compared with ordinary goethite. Also the B-permeated goethites improved B content of the rape seedling and therefore enhanced the rape shoot and root dry weight. Correlation analysis demonstrated that water soluble B (WS-B) plays the most important role in rape B uptake and accumulation, moreover the specifically adsorbed B (SPA-B), nonspecifically adsorbed B (NSA-B), amorphous Fe and A1 oxides (AMO-B) was also significant correlated with the B content or B accumulation of the rape. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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