低固体浓度污泥下，氮磷钾营养物质流失量比高固体浓度污泥明显增多。

The loss of nutrient from the sludge with low concentration was obviously more than that from sludge with high concentration.

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砂培试验表明，在低氮、低磷、低钾胁迫下，东塘、东塘西侧地上部干重、生物学产量降低；

The results of sandy culture showed that the dry weight of shoot and yield of biomass of DT and DTXC decreased under low-N, low-P, low-K stress.

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其方法检出限低，准确度好，可为进一步研究脐橙与钾、钠、钙、镁、磷等元素的关系提供有价值的分析方法和信息。

The method, featured by low detection limit and high accuracy, can provide valuable references for the further studies on the relationship between navel orange and these elements.

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