Rational utilization of urease and nitrification inhibitors improve the ammonia-oxidizing bacteria community, nitrogen use efficiency and peanut growth

IF 2.3 4区农林科学 Q1 AGRONOMY

Archives of Agronomy and Soil Science Pub Date : 2023-03-05 DOI:10.1080/03650340.2023.2186404

Cuiping Meng, M. Wu, Liyu Yang, Haiyan Liang, Qi Wu, Yi Li, Pu Shen

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引用次数: 0

Abstract

ABSTRACT Peanuts (Arachis hypogaea L.) is an important oil and nitrogen (N) fixing crop. Urease inhibitors (UIs) and nitrification inhibitors (Nis) can mitigate the release of N and reduce the harmful effects of excessive N concentrations. However, the effect of these inhibitors on the soil nutrient-microbial activity-plant growth system is unknown in peanut. The purpose of this study was to investigate the effects and mechanism of N-(n-butyl) thiophosphoric triamide (NBPT), 3,4-dimethylpyrazole phosphate (DMPP) and sulfur-coated urea (SCU) on peanut. The results showed that comparing with urea alone, adding NBPT + DMPP inhibited the urea hydrolysis better and decreased the concentration of NH4 +-N + NO3 −-N by 20.8% in soil. Therefore, it increased the net photosynthetic rate, promoted the development of roots even the absorption of N by peanut, with N use efficiency (NUE) up to 20.8%. The effect of NBPT + DMPP on microorganism was better than that of NBPT alone, which considerably impacted the structure and abundances of aonia oxidizing bacteria (AOB) but not ammonia-oxidizing archaea (AOA). Specifically, g_Nitrosospira and g_Nitrosomonas decreased by 46.9% and 2.2% respectively, and g(c) Betaproteobacteria increased. Furthermore, when combined with SCU on this basis, the overall effect was clearer.

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合理利用脲酶和硝化抑制剂可改善氨氧化菌群落，提高氮素利用效率，促进花生生长

花生(arachhis hypogaea L.)是一种重要的固油固氮作物。脲酶抑制剂(UIs)和硝化抑制剂(Nis)可以减缓氮的释放，降低氮浓度过高的有害影响。然而，这些抑制剂对花生土壤养分-微生物活性-植物生长系统的影响尚不清楚。研究了N-(正丁基)硫代磷三酰胺(NBPT)、3,4-二甲基吡唑磷酸(DMPP)和硫包尿素(SCU)对花生生长的影响及其机理。结果表明:与单独施用尿素相比，NBPT + DMPP能更好地抑制尿素水解，使土壤NH4 +-N + NO3−-N浓度降低20.8%;因此，提高了净光合速率，促进了根系发育，促进了花生对氮的吸收，氮素利用效率(NUE)可达20.8%。NBPT + DMPP对微生物的影响优于NBPT单独处理，对氨氧化菌(AOB)的结构和丰度有显著影响，对氨氧化古菌(AOA)的结构和丰度无明显影响。其中，g_Nitrosospira和g_Nitrosomonas分别减少46.9%和2.2%，g(c) Betaproteobacteria增加。此外，当在此基础上与SCU联合使用时，整体效果更加清晰。

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来源期刊

Archives of Agronomy and Soil Science AGRONOMY-SOIL SCIENCE

CiteScore

5.50

自引率

4.20%

发文量

107

期刊介绍： rchives of Agronomy and Soil Science is a well-established journal that has been in publication for over fifty years. The Journal publishes papers over the entire range of agronomy and soil science. Manuscripts involved in developing and testing hypotheses to understand casual relationships in the following areas: plant nutrition fertilizers manure soil tillage soil biotechnology and ecophysiology amelioration irrigation and drainage plant production on arable and grass land agroclimatology landscape formation and environmental management in rural regions management of natural and created wetland ecosystems bio-geochemical processes soil-plant-microbe interactions and rhizosphere processes soil morphology, classification, monitoring, heterogeneity and scales reuse of waste waters and biosolids of agri-industrial origin in soil are especially encouraged. As well as original contributions, the Journal also publishes current reviews.