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首页> 外文期刊>Plant and Soil >Effectiveness of Ethylenediamine-N(o-hydroxyphenylacetic)-N′(p-hydroxyphenylacetic) acid (o,p-EDDHA) to Supply Iron to Plants
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Effectiveness of Ethylenediamine-N(o-hydroxyphenylacetic)-N′(p-hydroxyphenylacetic) acid (o,p-EDDHA) to Supply Iron to Plants

机译：乙二胺-N（邻羟基苯乙酸）-N'（对羟基苯乙酸）（o，p-EDDHA）对植物供铁的有效性

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摘要

The Fe chelate o,p-EDDHA/Fe~(3+), in addition to o,o-EDDHA/Fe~(3+), was found recently to be a component of commercial EDDHA/Fe~(3+) chelates. The European Regulation on fertilisers has included o,p-EDDHA as an authorized chelating agent. The efficacyof o,o-EDDHA/Fe~(3+), o,p-EDDHA/Fe~(3+) and EDTA/Fe~(3+) chelates as Fe sources in plant nutrition was studied. Iron-chelate reductase (FC-R) in young cucumber plants (Cucumis sativus L.) roots reduced o,p-EDDHA/Fe~(3+) faster than o,o-EDDHA/Fe~(3+), EDTA/Fe~(3+) and a commercial source of EDDHA/Fe~(3+). The o,p-EDDHA/Fe~(3+) chelate was also more effective than the o,o-EDDHA/Fe~(3+) in decreasing the severity of Fe-deficiency chlorosis in leaves of young soybean (Glycine max L.) plants grown hydroponically. The o,p-EDDHA ligand was more effective in the short-term than the EDTA and o,o-EDDHA ligands at dissolving Fe from selected Fe minerals and soils. However, the ultimate quantity of dissolve Fe was greatest with the o,o-EDDHA ligand.
机译：除o，o-EDDHA / Fe〜（3+）外，最近还发现Fe螯合物o，p-EDDHA / Fe〜（3+）是商业EDDHA / Fe〜（3+）螯合物的成分。 。欧洲肥料法规已将o，p-EDDHA作为授权的螯合剂。研究了o，o-EDDHA / Fe〜（3 +），o，p-EDDHA / Fe〜（3+）和EDTA / Fe〜（3+）螯合物作为植物营养中铁的功效。年轻黄瓜植株（Cucumis sativus L.）根中的铁螯合还原酶（FC-R）比o，o-EDDHA / Fe〜（3 +），EDTA / Fe〜（3+）和EDDHA / Fe〜（3+）的商业来源。 o，p-EDDHA / Fe〜（3+）螯合物在降低年轻大豆叶片缺铁性黄化严重程度方面也比o，o-EDDHA / Fe〜（3+）更有效（Glycine max L 。）水培植物。 o，p-EDDHA配体在短期内比EDTA和o，o-EDDHA配体在从选定的Fe矿物和土壤中溶解Fe更为有效。但是，o，o-EDDHA配体的最终溶解铁量最大。

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