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以竹酢液、腐植酸、赤砂糖3种物质为改良材料对园林废弃物堆肥基质进行改良试验,以改良后基质的pH值、EC值、种子发芽率、根长、发芽指数为评价指标筛选出适宜固体栽培基质的最优改良剂。结果表明:添加竹酢液、腐植酸、赤砂糖混合改良剂的处理有效降低了基质pH值、EC值,改良效果随时间推移维持稳定;施加改良剂对于基质的种子发芽率、根长、发芽指数影响极显著(p<0.01),可有效提高种子发芽率、根长、发芽指数;基质pH值、EC值与种子发芽率、根长、发芽指数有极显著相关关系,说明改良剂的效果主要呈现在调节pH值、EC值上;将改良后基质之间各指标进行比较,腐植酸7.0g+竹酢液0.5mL+赤砂糖5.0g加水配制至1L的复合改良剂效果最好。
Taking bamboo vinegar, humic acid and red sugar as modified materials, the modified composting medium of garden wastes was tested. The modified matrix was tested by pH value, EC value, germination rate, root length and germination index The best solid substrate suitable for improving the improver. The results showed that adding bamboo vinegar, humic acid and brown sugar mixture improver effectively reduced the pH value and EC value of the substrate, and the improvement effect remained stable over time. With the application of improver, the seed germination rate, root length and germination The index had a significant effect (p <0.01), which could effectively improve the seed germination rate, root length and germination index. The matrix pH value and EC value had a significant correlation with seed germination rate, root length and germination index, indicating that the effect of modifier Mainly in the regulation of pH value, EC value; the improved matrix comparison of the indicators, humic acid 7.0g + bamboo vinegar 0.5mL + red sugar 5.0g water to 1L compound modifier best.