种植年限对山银花土壤质量的影响
发布时间：2018-07-16 19:28
【摘要】：以贵州地产山银花不同种植年限土壤为研究对象,通过野外调查与室内分析相结合的方法,对比研究了山银花不同种植年限下土壤团聚体、土壤肥力和土壤重金属的污染程度。结果表明:土壤中5~1mm和1~0.25mm团聚体占的比例最高,粒径大于1.00mm水稳性土壤团聚体的总量都是根区大于非根区,总体上土壤结构性好;碱解N、有效P、速效K,有机质等土壤肥力指标等级大都为Ⅰ级或者Ⅱ级,大部分处于丰富水平,11~20a的根区土壤养分丰富比例最高;参照贵州省土壤背景,重金属As随着种植年限增加污染程度有增加趋势,总体土壤尚清洁。研究可筛选出高产优质山银花的最佳种植年限,为贵州生产高产优质山银花的栽培管理及施肥技术奠定基础。
[Abstract]:The soil aggregates, soil fertility and soil heavy metal pollution under different planting years of Lonicera sinensis in Guizhou were studied by combining field investigation with indoor analysis. The results showed that the percentage of 5~1mm and 1~0.25mm aggregates was the highest in the soil, and the aggregate size of the aggregates was larger than that of the water stable soil aggregates of 1.00mm. The total aggregate size of the aggregates was larger in the root zone than in the non-root zone, and the soil structure was good on the whole. Soil fertility indexes such as available N, available P, available K and organic matter were mostly grade 鈪，
本文编号：2127437
[Abstract]:The soil aggregates, soil fertility and soil heavy metal pollution under different planting years of Lonicera sinensis in Guizhou were studied by combining field investigation with indoor analysis. The results showed that the percentage of 5~1mm and 1~0.25mm aggregates was the highest in the soil, and the aggregate size of the aggregates was larger than that of the water stable soil aggregates of 1.00mm. The total aggregate size of the aggregates was larger in the root zone than in the non-root zone, and the soil structure was good on the whole. Soil fertility indexes such as available N, available P, available K and organic matter were mostly grade 鈪，
本文编号：2127437
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