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广东南雄烟区主要植烟土壤中氮肥淋失特征研究 被引量:4

Study on Leaching Characteristics of Nitrogen in the Main Types of Tobacco-planting Soils in Nanxiong, Guangdong Province
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摘要 采用室内土柱淋溶模拟试验,研究了广东南雄烟区3种主要植烟土壤不同施氮水平下氮素淋失特征。结果表明,3种土壤氮素淋失形态主要为硝态氮,淋失主要发生在第1、2、3、4、5次淋洗,其淋失量(Y)随施氮量(x)增加而增加Y紫色土=1.8889+0.0121x+0.0012x2(R2=0.9993)、Y牛肝土田=2.7918-0.0771x+0.0012x2(R2=0.9861)、Y砂泥田=3.6654-0.0536x+0.0012x2(R2=0.9935)。在相同施氮量下,3种土壤硝态氮淋失率大小顺序为:紫色土>砂泥田>牛肝土田,其硝态氮累计淋失量与淋洗次数间最佳回归方程为对数方程。淋洗结束后,施氮处理土柱各层硝态氮含量较未施肥处理高,且在相同施氮量时,牛肝土田土柱各层残留硝态氮最高,紫色土最低。 A soil column experiment was conducted to investigate the leaching characteristics of nitrogen at different nitrogen rates in three main types of tobacco-planting soils in Nanxiong,Guangdong province.The results showed that the main leaching nitrogen form was nitrate in these three types of tobacco-planting soils,leaching occurred mainly in the first 2,3,4 times leaching,and leaching loss volume of nitrate(Y) increased with increasing rate(x) of nitrogen application Ypurple soil=1.8889+0.0121x+0.0012x^2(R^2 =0.9993),Yliver soil=2.7918-0.0771x+0.0012x^2(R^2=0.9861),Ysand field=3.6654-0.0536x+0.0012x^2(R^2=0.9935).In the same amount of nitrogen application,the nitrate leaching rates of three types of soil were as follows: purple soilsand fieldliver soil.The best regression equation between nitrate cumulative leaching loss and leaching times was logarithmic equation.After leaching,the nitrate content in each layer of soil column treated with nitrogen was higher than those without nitrogen application,and in the same nitrogen application rate,the level of residual nitrate in each layer of liver soil column was the highest,but lowest in purple soil.
出处 《中国烟草科学》 CSCD 北大核心 2011年第1期5-11,共7页 Chinese Tobacco Science
基金 广东省科技厅项目(2008B021900002) 广东省烟草专卖局项目{粤烟科[2008]19号} 川渝中烟工业公司"南雄浓香型风格特色烟叶生产技术开发及示范推广"项目
关键词 植烟土壤 淋失 tobacco planting soil nitrogen leaching loss
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  • 1陶芾,滕婉,李春俭,张福锁.我国烤烟生产体系中的养分平衡[J].中国烟草科学,2007,28(3):1-5. 被引量:28
  • 2巨晓棠,晁逢春,李春俭,江荣风,张福锁,石俊雄,刘建利,陈江华.土壤后期供氮对烤烟产量和烟碱含量的影响[J].中国烟草学报,2003,9(B11):48-53. 被引量:54
  • 3李春俭,张福锁.烤烟生产养分综合管理理论与实践[M].北京:中国农业大学出版社,2006.
  • 4Ceccon P. N in drainage waters as influenced by soil depth and N fertilizer: a study in lysimeters[J]. European Journal of Agronomy, 1995, 4(3): 289-298.
  • 5张福珠 熊先哲 戴同顺.应用^15N研究土壤,植物系统氮素淋失动态.环境科学,1984,5(1):21-24.
  • 6Roman R, Caballero R, Bustos A, et al. Water and solute movement under conventional corn in Central Spain[J]. I. Water balance. Soil Sci. Soc. Am. J., 1996, 60: 1530-1536.
  • 7Diez J A, Caballero R, Roman R, et al. Integrated fertilizer and irrigation management to reduce nitrate leaching in Central Spain[J]. J. Environ. Qual., 2000, 29: 1539-1547.
  • 8Pleysier J L , Juo A S R. Leaching of fertilizer ions in a Ultisol from high rainfall tropics: Leaching trough undisturbed soil columns[J]. Soil Science Society of America Journal, 1981, 45: 754-760.
  • 9Lars B, Nils B. Effects of different applications of fertilizer N on leaching losses and distribution of inorganic N in the soil[J]. Plant and Soil, 1986, 93: 333-345.
  • 10Zhang H C, Cao Z H, Wang G P, et al. Winter runoff losses of phosphorus from paddy soils in the Taihu Lake region in South China[J]. Chemosphere, 2003, 52: 1461-1466.

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