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采用盆栽种植实验及淋溶试验方法,研究了纳米碳及其与沸石、保水剂等材料复合对油菜生长和土壤氮素淋溶情况的影响.结果表明,在各处理中,纳米碳与沸石和保水剂复合材料处理(N4)对油菜的株高和干重影响最明显,较空白对照组(CK)分别增加21.12%和16.51%;在土壤淋溶试验中,各处理的土壤总氮淋出量较CK减少25.00%~39.21%,其中,累积淋溶中NH+4-N量占总氮量的4.44%~6.73%,各处理间无显著差异,NO-3-N量占总氮量的49.33%~60.05%,但各处理间差异显著;纳米碳和沸石复合处理能有效延缓NO-3-N峰值出现时间,减少NO-3-N流失.因此,N4处理在促进作物生长和氮素保持增效利用方面效果最佳.
The effects of nano-carbon and its combination with zeolite, water-retaining agent and other materials on rape growth and soil nitrogen leaching were studied by pot planting experiment and leaching experiment.The results showed that in the treatment, nano-carbon and zeolite and Water-holding agent composite treatment (N4) had the most significant effect on plant height and dry weight of rapeseed, which increased by 21.12% and 16.51% respectively compared with blank control group (CK). In soil leaching test, The amount of NH 4 + -N in the accumulated leaching accounted for 4.44% -6.73% of the total nitrogen, and there was no significant difference among treatments. The content of NO 3-N in total nitrogen , But significant difference was found between the treatments.Nano-carbon and zeolite combined treatment could effectively delay the peak time of NO-3-N and reduce the loss of NO-3-N.Therefore, N4 treatment could promote crop growth and nitrogen Maintain the efficiency of the use of the best effect.