本文選題：納米碳溶膠 + 堿性土壤　； 參考：《土壤》2017年05期

【摘要】：采用土柱淋洗試驗和土盆試驗,研究了濃度分別為10、20和40 mg/L的納米碳溶膠對堿性土壤p H、EC值和速效養(yǎng)分含量的影響。結(jié)果表明:納米碳溶膠能夠明顯降低堿性土壤p H和EC值,最大降低幅度分別達到0.49個單位和0.14 m S/cm,且納米碳溶膠濃度越高,降低效果越明顯。納米碳溶膠能夠明顯增加0~80 cm各土層硝態(tài)氮含量,3個處理平均增幅分別達到21.99%、27.34%和25.57%;但對銨態(tài)氮含量影響較小。納米碳溶膠淋洗可提高各土層中有效磷含量,但不同濃度納米碳溶膠在不同土層中表現(xiàn)效果不同,3個處理有效磷含量平均增加10.10%、13.72%和12.30%。納米碳溶膠對土壤鉀素有較好的活化效果,各土層速效鉀含量均有明顯增加,3個處理平均增幅分別達到6.62%、12.54%和13.18%。上述結(jié)果表明納米碳溶膠能夠明顯降低堿性土壤pH和EC值,提高速效養(yǎng)分含量,對堿性土壤有較好的改良效果。
[Abstract]:The effects of nano-carbon sol with concentrations of 10 ~ 20 and 40 mg/L on the EC value and available nutrient content of alkaline soil were studied by soil column leaching test and soil-basin test. The results showed that the pH and EC values of alkaline soil could be significantly decreased by nano-carbon sol, and the maximum reduction range was 0.49 units and 0.14 m S / cm, respectively. The higher the concentration of nano-carbon sol, the more obvious the reduction effect was. Nano-carbon sol can obviously increase nitrate nitrogen content in 0 ~ 80cm soil layer, the average increase of the three treatments is 21.99% and 25.57% respectively, but the effect on ammonium nitrogen content is relatively small. The leaching of nano-carbon sol can increase the content of available phosphorus in different soil layers, but the effect of different concentration of nano-carbon sol in different soil layer is different. The available phosphorus content of three treatments increased by 10.10% 13.72% and 12.30% on average. Nano-carbon sol had better activation effect on soil potassium, and the content of available potassium in each soil layer increased obviously, and the average increase of the three treatments reached 6.62% 12.54% and 13.1818%, respectively. The results showed that nano-carbon sol could significantly reduce pH and EC value of alkaline soil, increase the content of available nutrients, and improve alkaline soil.
【作者單位】： 中國煙草總公司鄭州煙草研究院煙草行業(yè)生態(tài)環(huán)境與煙葉質(zhì)量重點實驗室;河南中煙工業(yè)有限責任公司;
【基金】：國家科技支撐計劃項目(2012BAC08B08) 鄭州煙草研究院科技項目(112013CZ0580)資助
【分類號】：S156.4

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