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本文首次研究了六年生床土根际与主根上、下土壤营养状况和化学性质。结果表明，土壤有机质的分布趋势是根上＞根下＞根际；全量养分变化不大；根区有效氮磷钾根上层＞根下层；床上ｐＨ值有根际＞根上＞根下的变化规律；盐基离子组成与ＰＨ的变化规律相同。
This paper first studied the nutrient status and chemical properties of the upper and lower soils in the rhizosphere and main roots of six-year soil beds. The results showed that the distribution trend of soil organic matter was root> infra-root> rhizosphere; the change of total nutrient amount was not significant; the effective N, P, K + root in the root zone was lower; the pH value in the bed had rhizosphere> in root> in root; The composition of salt ions and the change of PH are the same.