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Journal of Environmental Sciences 2005年第1期17卷 81-83页

作者： XUChao WULiang-huan JUXiao-tang ZHANGFu-suo CollegeofEnvironmentalandResourceSciences ZhejiangUniversityHangzhou310029China CollegeofResourcesandEnvironment ChinaAgriculturalUniversityBeijing100094China

The influence of nitrification inhibitor(NI) 3,4 dimethylpyrazole phosphate(DMPP) on nitrate accumulation in greengrocery( Brassica campestris L. ssp. chinensis ) and vegetable soil at surface layer were investigated in field experiments in 2002 and 2003 Results showed that NI DMPP took no significant effect on yields of edible parts of greengrocery, but it could significantly decrease NO - 3 N concentration in greengrocery and in vegetable soil at surface layer. In addition, NI DMPP could reduce the NO - 3 N concentration during the prophase stage of storage.

关键词： dimethylpyrazole phosphate(DMPP) NO^-_3-N vegetable soil greengrocery( Brassica campestris L. ssp. chinensis )

Effect of nicotine on bacterial population structure in vegetable soil

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Effect of nicotine on bacterial population structure in vege...

Effect of Biochar on the Chemical Fertility of vegetable soil

International Symposium on Green Technology and Ecosystem Health

作者： Aidong Ruan1,Hang Min2 1State key laboratory of hydrology,water resource and hydraulic engineering,Hohai University,1 Xikang Road,Nanjing,210098,R.P.China 2College of life science,Zhejiang University,268 Kaixuan road,Hangzhou,310029,R.P.China

＜正＞Nicotine is the principal alkaloid accumulated in most Nicotiana species and, together with the differing leaf treatments. Solid or liquid wastes containing high concentration of nicotine may make environments p... 详细信息

关键词： nicotine bacterial population structure vegetable soil

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Agricultural Science & Technology 2013年第12期14卷 1804-1809页

作者：伏广农程根官利兰张新明华南农业大学资源环境学院广东广州510642

[Objective] To investigate the effect of biochar on the chemical fertility of vegetable soil. [Method] By pot experiments, the effect of biochar the soil pH and the content of organic matter, available nitrogen, readily available potassium, avail- able phosphorus, water-soluble phosphorus, exchangeable calcium and magnesium were investigated. The experiment contained five treatments, i.e., CK （no biochar）, T1 （0.10% biochar）, T2 （0.25% biochar）, T3 （0.50% biochar） and T4 （1.00% biochar）. [Result] As the application amount of biochar increases in the treatments, the soil pH, the content of organic matter and readily available potassium ascended significantly, with a trend of T4〉T3 〉T2〉TI〉CK; the contents of available phospho- rus and water-soluble phosphorus first show upward trend then downward trend, with T3 being the highest and CK the lowest; the contents of available nitrogen and exchangeable magnesium did not assume obvious change; compared with control, an appropriate amount of char could significantly increase the content of exchangeable calcium. [Conclusion] Biochar can significantly improve the chemical fertility of vegetable soil, and the application amount in T3 （0.50% biochar） brings the best effects.

关键词： Biochar vegetable soil Chemical fertility

Ammonia volatilization from a Chinese cabbage field under different nitrogen treatments in the Taihu Lake Basin, China

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Journal of Environmental Sciences 2015年第12期27卷 14-23页

作者： Linan Shan Yunfeng He Jie Chen Qian Huang Hongcai Wang College of Environmental and Resource Science Zhejiang University Ministry of Agriculture Key Laboratory of Non-point Source Pollution Control

Ammonia（NH3） volatilization is a major pathway of nitrogen（N） loss from soil-crop *** vegetable cultivation is one of the most important agricultural land uses worldwide,a deeper understanding of NH3 volatilization is necessary in vegetable production *** therefore conducted a 3-year（2010-2012） field experiment to characterize NH3 volatilization and evaluate the effect of different N fertilizer treatments on this process during the growth period of Chinese *** volatilization rate,rainfall,soil water content,p H,and soil NH4~＋were measured during the growth *** results showed that NH3 volatilization was significantly and positively correlated to topsoil p H and NH4＋*** factors and fertilization method also significantly affected NH3 ***,organic fertilizer（OF） increased NH3 volatilization by 11.77%-18.46%,compared to conventional fertilizer（CF,urea）,while organic-inorganic compound fertilizer（OIF） reduced NH3 volatilization by 8.82%-12.67% compared to ***,slow-release fertilizers had significantly positive effects on controlling NH3 volatilization,with a 60.73%-68.80% reduction for sulfur-coated urea（SCU）,a 71.85%-78.97% reduction for biological Carbon Power~？ urea（BCU）,and a 77.66%-83.12% reduction for bulk-blend controlled-release fertilizer（BBCRF）relative to *** study provides much needed baseline information,which will help in fertilizer choice and management practices to reduce NH3 volatilization and encourage the development of new strategies for vegetable planting.

关键词： Ammonia volatilization Nitrogen fertilizer Slow-release fertilizer vegetable soil

Differential Responses of Nitrifier and Denitrifier to Dicyandiamide in Short- and Long-Term Intensive vegetable Cultivation soils

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Journal of Integrative Agriculture 2014年第5期13卷 1090-1098页

作者： LIU Yi YANG Yang QIN Hong-ling ZHU Yi-jun WEI Wen-xue Key Laboratory of Agro-Ecological Processes in Subtropical Regions and Taoyuan Station of Agro-Ecology Research Institute of Subtropical Agriculture Chinese Academy of Sciences Tianjin Land & Resources & Housing Management Research Centre

Nitrification inhibitors, such as dicyandiamide （DCD）, have been shown to decrease leaching from urea- and ammoniumbased fertilizers in agricultural soils. The effect of nitrification inhibitors on nitrifier and denitrifier in short- and long-term intensive vegetable cultivation soils was poorly understood. In this study, the pot trial was conducted to investigate the differential responses of nitrifier （amoA-containing bacteria） and denitrifier （nirK-containing bacteria） to DCD in short-（soil S） and long-term （soil L） intensive vegetable cultivation soils. Quantitative polymerase chain reaction （qPCR） and terminal restriction fragment length polymorphism （T-RFLP） were employed to detect the abundance and composition of amoA- and nirK-containing communities. The results indicated that application of DCD led to a consistently higher NH4＋-N concentration during the whole incubation in soil L, while it was quickly decreased in soil S after 21 days. Furthermore, DCD induced more severe decrease of the abundance of amoA-containing bacteria in soil L than in soil S. However, the abundance of the nirK- containing community was not significantly affected by DCD in both soils. Long-term vegetable cultivation resulted in a super-dominant amoA-containing bacteria group and less divergence in soil L compared with soil S, and DCD did not cause obvious shifts of the composition of ammonia-oxidising bacteria （AOB）. On the contrary, both amoA- and nirK-containing bacterial compositions were influenced by DCD in soil S. The results suggested that long-term intensive vegetable cultivation with heavy nitrogen fertilization resulted in significant shifts of AOB community, and this community was sensitive to DCD, but denitrifiers were not clearly affected by DCD.

关键词： DCD amoA nirK vegetable soil