ABSTRACT

The study evaluated the effects of lime and dolomite application (2 and 4 t ha⁻¹) in combination with NPK fertilizer (1 t ha⁻¹) or borax (50 kg ha⁻¹) on micronutrient concentrations in the raspberry leaves and fruits grown in the soil with a strongly acid reaction. Changes in the content of micronutrients (Fe, Mn, Cu, Zn, and B) and Al in the soil and raspberry leaves and fruits were monitored during a two-year period. Calcification reduced the content of micronutrients and Al in the soil, as well as their content in the plant. Applied doses of lime or dolomite of 4 t ha⁻¹ almost completely neutralized the high to toxic content of mobile Al in the soil, but the values in the leaves although reduced were still high. In all applied treatments, high and very high concentrations of available forms of Fe and Mn in the soil and/or leaves and fruits were significantly reduced. However, the Mn concentrations in the soil, leaves, and raspberry fruits were very high. Calcification did not reduce the available Cu in the soil, while this effect was observed in raspberry leaves and fruits where the Cu concentrations were within optimal values. After calcification, the Zn and B concentrations decreased in the soil and plant, but they mostly remained within the optimal values. The results indicate that due to the very high concentrations of Al and Mn in the soil and plant after lime application, additional doses of lime materials in more than one season are required.

摘要

该研究评估了石灰和白云石施用（2 和 4 t ha ^-1）与 NPK 肥料（1 t ha ^-1）或硼砂（50 kg ha ^-1）组合对生长的覆盆子叶和果实中微量营养素浓度的影响在土壤中与强酸反应。在两年期间监测土壤和覆盆子叶和果实中微量营养素（Fe、Mn、Cu、Zn 和 B）和 Al 含量的变化。钙化降低了土壤中微量营养素和铝的含量，以及它们在植物中的含量。石灰或白云石的应用剂量为 4 t ha ^-1几乎完全中和了土壤中移动铝的高毒性含量，但叶片中的值虽然减少了，但仍然很高。在所有应用的处理中，土壤和/或叶子和果实中高浓度和非常高浓度的有效形式的铁和锰都显着减少。然而，土壤、叶子和覆盆子果实中的锰含量非常高。钙化不会减少土壤中的有效铜，而在铜浓度处于最佳值范围内的覆盆子叶和果实中观察到这种效应。钙化后，土壤和植物中锌和硼的浓度下降，但大多保持在最佳值内。结果表明，由于施用石灰后土壤和植物中的 Al 和 Mn 浓度非常高，