山东大泽山葡萄产地土壤及植株中营养元素丰缺状况评价

依据大泽山葡萄产地生态地球化学调查资料对葡萄园土壤、植株营养丰缺状况进行了评价.结果表明:K供给最丰足,有机质相对缺乏,微量营养组分在各园相差较大,但基本处于中等或低的水平;3种葡萄叶片和叶柄诊断显示,营养供给水平总体上处于适量范围;由葡萄叶柄养分平衡指标推断,土壤有机质缺乏、土壤养分吸收利用率低是影响大泽山地区葡萄园产量主要原因.

Evaluation on the condition of abundance or deficiency of the nutrient elements in soils and grape plants in Dazeshan grape producing area

Based on the Eco-Geochemcial investigation performed in Dazeshan grape producing area, the authors made an evaluation on the condition of abundance or deficiency of the nutrient elements in soils and grape plants in Dazeshan grape producing area. The results showed that K was the most sufficient element while organic matter was relatively deficient in the soils. The trace nutrient elements were in middle or low levels commonly but varied considerably among the vineyards. The contents of nutrient elements in the leaf and petiole of three cultivars were in proper levels. Multi-analysis of nutrient balance parameters in grape petiole indicated that deficiency of organic matters in soils and the low absorbability of nutrient elements were the main factors affecting the yield of vineyards in Dazeshan region.