Effect of Trichoderma viride biofertilizer on ammonia volatilization from an alkaline soil in Northern China
Effect of Trichoderma viride biofertilizer on ammonia volatilization from an alkaline soil in Northern China
复制标题
绿色木霉生物肥料对北方碱性土壤氨挥发的影响
DOI：
10.1016/j.jes.2017.05.016
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发表时间：
2018
影响因子：
6.9
通讯作者：
Zhuang Xuliang
中科院分区：
文献类型：
--
作者：
Wang Xia;Xu Shengjun;Wu Shanghua;Feng Shugeng;Bai Zhihui;Zhuang Guoqiang;Zhuang Xuliang
氨挥发是化肥后土壤氮素流失的主要途径之一，尤其是中国北部的碱性土壤，导致化肥利用率较低。为此，我们利用天津的一种碱性土壤(pH为8.37-8.43)进行了培养试验，以评价绿色木霉生物肥料对氨挥发的抑制效果，并比较了各样品微生物群落结构的差异。结果表明，viableT.生物有机肥(T)比常规肥料(CK、尿素)降低NH3挥发量42.21%，而不施生物有机肥。生物有机肥(TS)使土壤NH3挥发量降低了32.42%。在高峰期，对照和甘薯淀粉废水(SPSW)处理的NH3挥发量显著高于对照。病虫害生物肥还能促进土壤中的氨氮向甜高粱的迁移。T和TS的植株干重分别比对照增加91.23%和61.08%。此外，T.viride生物肥通过增加氨氧化古生菌(AOA)和氨氧化细菌(AOB)的丰度来促进硝化作用。高通量测序结果表明，FT的应用显著改变了微生物群落的结构和组成。病毒生物肥料。这项研究展示了OFT的巨大潜力。生物菌肥在减少碱土氨挥发的同时，提高甜高粱对肥料N的利用率。
Ammonia (NH3) volatilization is one of the primary pathways of nitrogen (N) loss from soils after chemical fertilizer is applied, especially from the alkaline soils in Northern China, which results in lower efficiency for chemical fertilizers. Therefore, we conducted an incubation experiment using an alkaline soil from Tianjin (pH 8.37–8.43) to evaluate the suppression effect ofTrichoderma viride(T. viride) biofertilizer on NH3volatilization, and compared the differences in microbial community structure among all samples. The results showed that viableT. viridebiofertilizer (T) decreased NH3volatilization by 42.21% compared with conventional fertilizer ((CK), urea), while nonviableT. viridebiofertilizer (TS) decreased NH3volatilization by 32.42%. NH3volatilization was significantly higher in CK and sweet potato starch wastewater (SPSW) treatments during the peak period.T. viridebiofertilizer also improved the transfer of ammonium from soil to sweet sorghum. Plant dry weights increased 91.23% and 61.08% for T and TS, respectively, compared to CK. Moreover,T. viridebiofertilizer enhanced nitrification by increasing the abundance of ammonium-oxidizing archaea (AOA) and ammonium-oxidizing bacteria (AOB). The results of high-throughput sequencing indicated that the microbial community structure and composition were significantly changed by the application ofT. viridebiofertilizer. This study demonstrated the immense potential ofT. viridebiofertilizer in reducing NH3volatilization from alkaline soil and simultaneously improving the utilization of fertilizer N by sweet sorghum.