|本期目录/Table of Contents|

 ZHAO Jing,FENG Wenqiang,QIN Yusheng,et al.Effects of Different Nitrogen Fertilizers on Cadmium Uptake by Wheat*[J].Chinese Journal of Applied & Environmental Biology,2010,16(01):58-62.[doi:10.3724/SP.J.1145.2010.00058]





Effects of Different Nitrogen Fertilizers on Cadmium Uptake by Wheat*
(1四川省农业科学院土壤肥料研究所 成都 610066)
(2四川农业大学资源环境学院 雅安 625014)
(3西南大学资源环境学院 重庆 400716)
ZHAO Jing FENG Wenqiang QIN Yusheng YU Hua LIAO Minglan JIAKA Latie CHENG Yu WANG Changquan TU Shihua
(1Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China)
(2College of Resources and Environment, Sichuan Agricultural University, Ya’an 625014, Sichuan, China)
(3College of Resources and Environment, Southwest University, Chongqing 400716, China)
Nitrogen variety wheat cadmium Cd uptake
为了保证镉含量处于临界值附近土壤上农产品的安全生产,避免不合理施肥引起土壤镉的活化和增加作物吸镉量,研究了4种主要氮肥对不同生育期小麦吸收镉的影响. 研究表明,施用硫酸铵、硝酸铵和尿素都比氯化铵促进了小麦生长,明显提高了小麦籽粒产量. 所有氮肥处理都比无肥处理增加了小麦对镉的吸收,但不同氮肥处理之间的效果差异显著,其中以氯化铵的促进作用最强,硫酸铵处理的小麦吸收镉最少,尿素处理的小麦对镉的吸收随其用量增加而增加. 在小麦整个生育期中,生育前期吸收镉较少,中、后期明显增大;但植株体内镉的浓度却表现为前期高、后期低,呈现随生育期递进而逐渐降低的趋势,只有氯化铵处理表现为拔节期体内镉含量为最高. 镉在小麦体内的累积与其生物量的增加呈正相关,从秸秆向籽粒转移的总镉量随小麦籽粒/秸秆比的增加而降低. 本试验中土壤的镉含量小于土壤环境质量污染二级标准,但籽粒含镉量均超过国家食品卫生标准允许量(0.1 mg kg-1),表明土壤镉污染指标与作物品种密切相关. 在镉污染土壤上,应选用低富集镉的小麦品种,避免使用氯化铵,防止过量施用尿素或其它铵态氮肥. 表4 参23
In order to secure safety of agricultural produce originated from the soil that contains cadmium (Cd) close to its critical pollution level and avoid any improper fertilization that can enhance activation and uptake of soil Cd by crops, pot experiments were conducted to study the effects of four major nitrogen (N) fertilizers on Cd uptake by wheat at different growth stages. The results showed that the application of ammonium sulfate, ammonium nitrate and urea significantly improved wheat growth and obviously enhanced wheat yield compared to the ammonium chloride. All N fertilizers increased Cd uptake that differed significantly between the treatments with the highest Cd uptake by the nitrogen chloride treatment and the lowest by the ammonium sulfate treatment. The Cd contents in wheat tissues were increased with an increase in urea dosage. Total amounts of Cd uptake in wheat tissues increased with time, while the Cd concentrations decreased with time from seedling stage to maturity, except ammonium chloride that resulted in the highest Cd content in the tissues at elongation stage. The accumulation of Cd in plant was well related with an increase in wheat biomass, while the amounts of Cd transferred from straw to grains decreased with an increase in grain/straw ratio. It is worth noting that the Cd content in wheat grains surpassed the allowable safety level even when wheat grew on the soil with Cd content below the critical pollution level, indicating that the soil Cd critical values should be set up for each crop or variety rather than a fixed value for all. In order to produce pollution free wheat growing on the soil suffering from Cd pollution or marginal Cd pollution, Cd resistant wheat variety should be adopted, and the use of ammonium chloride or overdoses of urea and other ammonium N fertilizers should be avoided to effectively reduce the activity of soil Cd. Tab 4, Ref 23


1 Chen HM (陈怀满), Zheng CR (郑春荣). Heavy Metal Pollution in the System Between Soil and Plant. Beijing, China (北京): Science Press, 1996. 71~72
2 Cabrera D, Yong SD, Rowell DL. The toxicity of cadmium to barley plants as affected by complex formation with humic acid. Plant Soil, 1988, 105: 195~204
3 Wu YY (吴燕玉). 张士灌区镉污染综合防止技术的研究. Environ Sci China (中国环境科学), 1985, 5 (3): 2~6
4 Bingham FT, Sposito G, Strong JE. The effect of chloride on the availability of cadmium. J Environ Qual, 1984, 13: 71~74
5 Tessier A, Campbell PGC, Bisson M. Sequential extraction procedure for the speciation of particulate trace metals. Anal Chem, 1979, 51: 844~851
6 Zhao J (赵晶). Effects of different nitrogen, phosphorus and potassium fertilizers on availability of soil cadmium and cadmium uptake by wheat: [Master’s Degree Thesis]. Ya’an, Sichuan, China (雅安): Agricultural University, 2009. 20~23
7 Wei LL (韦柳兰), Wang KX (王开曦), Li DY (栗德永). 小麦、玉米对不同类型污水中镉与铬的吸收与积累. Shaanxi J Agric Sci (陕西农业科学), 1994, 5: 27~28
8 Cao LJ (曹利军), Wang HD (王华东). Study on cadmium-pollution of soil-crop system and its control. Environ Pollut & Contr (环境污染与防治), 1996, 18 (5): 8~11
9 Nan ZR (南忠仁), Cheng GD (程国栋). Behaviors of heavy metals (Cd and Pb) in crops grown in land of arid regions irrigated by wastewater. Agro-environ Prot (农业环境保护), 2001, 20 (4): 210~213
10 Feng ZY (冯绍元), Shao HB (邵洪波), Huang GH (黄冠华). Field experimental study on the residue of heavy metal in wheat crop. Trans Chin Soc Agric Engin (农业工程学报), 2002, 18 (4): 113~115
11 Jiang LN (姜丽娜), Shao Y (邵云), Li CX (李春喜), Li XL (李向力), Lu XY (鲁旭阳), Ma SC (马守臣). Studies on uptake, distribution and accumulation of Cd in wheat plant. J Henan Agric Sci (河南农业科学), 2004, 18 (7): 13~17
12 Shao Y (邵云), Jiang LN (姜丽娜), Li XL (李向力), Lu XY (鲁旭阳), Li CX (李春喜). Distribution of five heavy metals in different organs of wheat. Ecol & Environ Sci (生态环境学报), 2005, 14 (2): 204~207
13 Zeng QR (曾清如), Zhou XH (周细红), Mao XY (毛小云). 不同氮肥对铅锌矿尾矿污染土壤中重金属的溶出及水稻苗吸收的影响. Soil & Fertil (土壤肥料), 1997, 3: 26~32
14 Yang M (杨锚), Wang HY (王火焰),Zhou JM (周健民), Hu CX (胡承孝), Du CW (杜昌文). Effects of appling nitrogen fertilizers on transformation of external cadmium in the paddy soil with different soil moisture. J Agro-Environ Sci (农业环境科学学报), 2006, 5 (5): 1202~1207
15 Smolders E, Lambregts RM, McLaughlin MJ, Tiller KG. Effect of soil solution chloride on cadmium availability to Swiss chard. J Environ Qual, 1998, 27 (2): 426~431
16 Chen SB (陈世宝), Zhu YG (朱永官), Yang JC (杨俊诚). Mechanism of the effect of phosphorus on bioavailability of heavy metals in soil-plant systems. Tech & Equipment Environ Pollut Contr (环境污染治理技术与设备), 2003, 4 (8): 1~7
17 Chen S (陈苏), Sun LN (孙丽娜), Sun TH (孙铁珩), Chao L (晁雷), Yang CL (杨春璐). Influence of potassium fertilizer on the phytoavailability of cadmium. Environ Sci (环境科学), 2007, 28 (1): 182~188
18 McLaughlin MJ, Andrew SJ, Smart MK, Smolders E. Effects of sulfate on cadmium uptake by Swiss chard: I. Effects of complexation and calcium competition in nutrient solutions. Plant Soil, 1998, 20: 2ll~216
19 McLaughlin MJ, Lambrechts RM, Smolders E, Smart MK. Effects of sulfate on cadmium uptake by Swiss chard: II. Effects due to sulfate addition to soil. Plant Soil, 1998, 202: 217~222
20 Mitchell LG, Grant CA, Racz GJ. Effect of nitrogen application on concentration of cadmium and nutrient ions in soil solution and in durum wheat. Can J Soil Sci, 2000, 80 (1): 107~l15
21 Gray CW, Moot DJ, McLaren RG, Reddecliffe T. Effect of nitrogen fertilizer applications on cadmium concentrations in durum wheat (Triticum turgidum) grain. New Zealand J Crop Hort Sci, 2002, 30 (4): 29l~299
22 Erikson JE. Effects of nitrogen-containing fertilizers on solubility and plant uptake of cadmium. Water, Air & Soil Pollut, 1990, 49 (3): 355~368
23 Fabing G, Dezsi DM. Ecophysiological studies of the relationship between heavy metal toxicity and nitrogen nutrition in the early development stage of winter wheat. Acta Bot Hungarica, 1987, 33 (3): 219~234


 JIN Yanling,GAN Mingzhe,et al.Ethanol Production with 4 Varieties of Sweet Potato at Different Growth Stages[J].Chinese Journal of Applied & Environmental Biology,2009,15(01):262.[doi:10.3724/SP.J.1145.2009.00267]
 ZHANG Daijing,JIANG Lina,SHAO Yun,et al.Variations in Germination and Endogenous Hormone Contents of Wheat Cultivars under Cr Stress[J].Chinese Journal of Applied & Environmental Biology,2009,15(01):602.[doi:10.3724/SP.J.1145.2009.00602]
 NI Jing,XU Zhibin,FENG Bo,et al.Effects of Different Treatments with Water and Nitrogen on Quality of Waxy Wheat[J].Chinese Journal of Applied & Environmental Biology,2010,16(01):770.[doi:10.3724/SP.J.1145.2010.00770]
 HUANG Yuhong,JIN Yanling,ZHAO Yun,et al.Viscosity Reduction During Fuel Ethanol Production by Fresh Sweet Potato Fermentation[J].Chinese Journal of Applied & Environmental Biology,2012,18(01):661.[doi:10.3724/SP.J.1145.2012.00661]


四川省科技支撑计划项目(No. 2008NG0002)和国家科技支撑计划项目(No. 2006BAD02A05)资助
更新日期/Last Update: 2010-02-09