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A 15N-Labeling Study of the Capture of Deep Soil Nitrate from Different Plant Systems |
YANG Zhi-xin, WANG Jue, DI Hong-jie, ZHANG Li-juan , JU Xiao-tang |
1.Key Laboratory for Farmland Eco-Environment, Hebei Province/College of Resource and Environmental Sciences, Agricultural University of
Hebei, Baoding 0710001, P.R.China
2.Centre for Soil and Environmental Research, PO Box 85084, Lincoln University, Lincoln 7647, New Zealand
3.College of Agricultural Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R.China |
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摘要 The objective of this study was to determine the efficiency of different plant systems in capturing deep soil nitrate (NO3 -) to reduce NO3 - leaching in a field plot experiment using 15N labelling. The study was conducted on a calcareous alluvial soil on the North China Plains and the plant systems evaluated included alfalfa (Medicago sativa), American black poplar (Populus nigra) and cocksfoot (Dactylis). 15N-labelled N fertilizer was injected to 90 cm depth to determine the recovery of 15N by the plants. With conventional water and nutrient management, the total recovery of 15N-labeled NO3 --N was 23.4% by alfalfa after two consecutive growth years. The recovery was significantly higher than those by American black poplar (12.3%) and cocksfoot (11.4%). The highest proportion of soil residual 15N from the labeled fertilizer N (%Ndff) was detected around 90 cm soil depth at the time of the 1st year harvest and at 110-130 cm soil depth at time of the 2nd year harvest. Soil %Ndff in 0-80 cm depth was significantly higher in the alfalfa treatment than those in all the other treatments. The soil %Ndff below 100 cm depth was much lower in the alfalfa than those in all the other treatments. These results indicated that 15N leaching losses in the alfalfa treatment were significantly lower than by those in the black poplar and cocksfoot treatments, due to the higher root density located in nitrate labeling zone of soil profile. In conclusion, alfalfa may be used as a plant to capture deep soil NO3 - left from previous crops to reduce NO3 - leaching in high intensity crop cultivation systems of North China Plain.
Abstract The objective of this study was to determine the efficiency of different plant systems in capturing deep soil nitrate (NO3 -) to reduce NO3 - leaching in a field plot experiment using 15N labelling. The study was conducted on a calcareous alluvial soil on the North China Plains and the plant systems evaluated included alfalfa (Medicago sativa), American black poplar (Populus nigra) and cocksfoot (Dactylis). 15N-labelled N fertilizer was injected to 90 cm depth to determine the recovery of 15N by the plants. With conventional water and nutrient management, the total recovery of 15N-labeled NO3 --N was 23.4% by alfalfa after two consecutive growth years. The recovery was significantly higher than those by American black poplar (12.3%) and cocksfoot (11.4%). The highest proportion of soil residual 15N from the labeled fertilizer N (%Ndff) was detected around 90 cm soil depth at the time of the 1st year harvest and at 110-130 cm soil depth at time of the 2nd year harvest. Soil %Ndff in 0-80 cm depth was significantly higher in the alfalfa treatment than those in all the other treatments. The soil %Ndff below 100 cm depth was much lower in the alfalfa than those in all the other treatments. These results indicated that 15N leaching losses in the alfalfa treatment were significantly lower than by those in the black poplar and cocksfoot treatments, due to the higher root density located in nitrate labeling zone of soil profile. In conclusion, alfalfa may be used as a plant to capture deep soil NO3 - left from previous crops to reduce NO3 - leaching in high intensity crop cultivation systems of North China Plain.
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Received: 05 November 2012
Accepted:
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Fund: This work was financially supported by the Provincial Natural Science Foundation of Hebei Province in China (C2006000491). We also acknowledge the financial support from the National Natural Science Foundation of China (30571110, 31172033) and the National 863 Program of China (2012AA101403-3) for this research. |
Corresponding Authors:
ZHANG Li-juan, Tel: +86-312-7528210, E-mail: lj_zh2001@163.com
E-mail: lj_zh2001@163.com
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About author: YANG Zhi-xin, Mobile: 18632209728, E-mail: yangzhixin@126.com |
Cite this article:
YANG Zhi-xin, WANG Jue, DI Hong-jie, ZHANG Li-juan , JU Xiao-tang.
2014.
A 15N-Labeling Study of the Capture of Deep Soil Nitrate from Different Plant Systems. Journal of Integrative Agriculture, 13(1): 167-176.
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Angle J S, Gross C M, Hill R L, Mclntosh M S. 1993. Soil nitrate concentrations under corn as affected by tillage, manure, and fertilizer applications. Journal of Environmental Quality, 22, 141-147 Caldwell M M. 1994. Exploiting nutrients in fertile soil microsites. In: Caldwell M M, Pearcy R W, eds., Exploitation of Environmental Hterogeneity by Plants. Academic Press, London, UK. pp. 325-347 Costa J M, Bollero G A, Coale F J. 2000. Early season nitrate accumulation in winter wheat. Journal of Plant Nutrition, 23, 773-783 Delgado J A. 1998. NLEAP facts about nitrogen manage ment. Journal of Soil and Water Conservation, 53, 332-338 Delgado J A. 2001. Use of simulations for evaluation of best management practices on irrigated cropping systems. In: Shaffer M J, Ma L, Hansen S, eds., Modeling Carbon and Nitrogen Dynamics for Soil Management. Lewis Publications, Boca Raton, FL. pp. 355-381 Dong X X, Liu X Y, Ren C L. 2012. Fate and residual effect of fertilizer nitrogen under winter wheat-summer maize rotation in North China Plain in meadow cinnamon soils. Scientia Agricultura Sinica, 11, 12-13 (in Chinese) Editorial Committee for China Agriculture Yearbook. 2009. The Agricultural Statistics Almanac of China. China Agriculture Press, Beijing. (in Chinese) Fitter A H. 1991. Characteristics and functions of root systems. In: Waisel Y, ed., Plant Roots: The Hidden Half. Marcel Decker, New York. pp. 3-25 Gathumbi S M, Cadisch G, Buresh R J, Giller K E. 2003. Subsoil nitrogen capture in mixed legume stands asassessed by deep nitrogen-15 placement Soil Science Society of America Journal, 67, 573-582 Glendining M J, Poulton P R, Powlson D S, MacDonald A J, Jenkinson D S. 2001. Availability of the residual nitrogen from a single application of 15N-labeled fertilizer to subsequent crops in a long-term continuous barley experiment. Plant and Soil, 233, 231-239 Jensen L S, Christensen L, Mueller T, Nielsen N E. 1997. Turnover of residual 15N-labeled fertilizer N in soil following harvest of oilseed rape (Brassica napus L.). Plant and Soil, 190, 193-202 Ju X T, Gao Q, Christie P, Zhang F S. 2007. Interception of residual nitrate from a calcareous alluvial soil profile on the North China Plain by deep-rooted crops: a 15N tracer study. Environmental Pollution, 146, 534-542 Ju X T, Kou C L, Zhang F S, Christie P. 2006. Nitrogen balance and groundwater nitrate contamination: comparison among three intensive cropping systems on the North China Plain. Environmental Pollution, 143, 117-125 Ju X T, Liu X J, Zhang F S, Roelcke M. 2004. Nitrogen fertilization, soil nitrate accumulation, and policy recommendations in several agricultural regions of China. Ambio, 33, 300-305 Kage H. 1997. Is low rooting density of faba beans a cause of high residual nitrate content of soil at harvest? Plant and Soil, 190, 47-56 Kou C L, Ju X T, Zhang F S. 2005. Nitrogen balance and its effects on nitrate-N concentration of groundwater in three intensive cropping systems of North China. Chinese Journal of Applied Ecology, 16, 660-667 (in Chinese) Liu X Y, Zhang L J, Yuan L J, Ju X T, Wen H D. 2010. Effects of topsoil water and nitrogen control on the utilization of nitrate accumulated in deep soil by wheat. Scientia Agricultura Sinica, 43, 3564-3571. (in Chinese) Marschner H. 1997. Mineral Nutrition of Higher Plants. 2nd ed. Academic Press, London. p. 889. Menezes R S C, Gascho G J, Hanna W W, Cabrera M L, Hook J E. 1997. Subsoil nitrate uptake by grain pearl millet. Agronomy Journal, 89, 189-194 van Noordwijk M, Lawson G, Soumare A, Groot J J R, Hairiah K. 1996. Root distribution of trees and crops: Competition and/or complementarity. In: Ong C K, Huxley P, eds., Tree-crop Interactions. CAB International, Wallingford, UK. pp. 319-364 van Noordwijk M, Purnomosidhi P. 1995. Root architecture in relation to tree-crop interactions and shoot pruning in agroforestry. Agroforestry Systems, 30, 161-173 Robinson D, Linehan D J, Gordon D C. 1994. Capture of nitrate from soil by wheat in relation to root length, nitrogen inflow and availability. New Phytologist, 128, 297-306 Roth G W, Fox R H. 1990. Soil nitrate accumulations following nitrogen fertilized corn in Pennsylvania. Journal of Environmental Quality, 19, 243-248 Rowe E C K, Hairiah K E, Giller M, van Noordwijk, Cadisch G. 1999. Testing the safety-net role of hedgerow tree roots by 15N placement at different soil depths. Agroforestry Systems, 43, 81-93 Schenk M, Heins B, Steingrobe B. 1991. The significance of root development of spinach and kohlrabi for N fertilization. Plant and Soil, 135, 197-203 Schroth G, Zech W. 1995. Root length dynamics in agroforestry with Gliricidia sepium as compared to sole cropping in the semi-deciduous rainforest zone of West Africa. Plant Soil, 170, 297-306 Schroth G. 1998. A review of belowground interactions in agroforestry, focusing on mechanisms and management options. Agroforestry Systems, 43, 5-34 Strong W M, Dalal R C, Weston E J, Cooper J E, Lehane K J, King A J. 1996. Nitrogen fertiliser residues for wheat cropping in subtropical Australia. Australian Journal of Agricultural Research, 47, 695-703 Tennant D. 1975. Test of a modified line intersect method of estimating rootlength. Journal of Ecology, 63, 995-1001 van Vuuren M M I, Robinson D, Griffiths B S. 1996. Nutrient inflow and root proliferation during the exploitation of a temporally and spatially discrete source of nitrogen in soil. Plant and Soil, 178, 185-192 Wiesler F, Horst W J. 1994. Root growth and nitrate utilization of maize cultivars under field conditions. Plant and Soil, 163, 267-277 Wu Y C, Wang Z M, Zhou S L. 2011. Studies on the characteristics of nitrogen fertilizer utilization in summer maize based on techniques of soil column and 15N-label. Scientia Agricultura Sinica, 44, 2446-2453 (in Chinese) Zhang F S. 2008. Research Reports on Fertilizer Industry of China and Strategies of Fertilization. China Agricultural University Press, Beijing. p. 37. (in Chinese) Zhang L J, Ju X T, Gao Q, Zhang F S. 2004. Recovery of N-labeled nitrate injected into deep subsoil by maize in a Calcaric Cambisol in North China Plain. Plant Nutrition and Fertilizer Science, 10, 455-461 (in Chinese) Zhang L J, Ju X T, Wen H D. 2010. Utilization of residual nitrogen by plants and its movement in different soil layers. Plant Nutrition and Fertilizer, 16, 82-91 Zhang L J, Ju X T, Zhang F S. 2005. Recovery of labeled nitrate-N in different soil layers by wheat in different growth stages. Scientia Agricultura Sinica, 38, 2261- 226. (in Chinese) Zhang W L, Tian Z X, Zhang N, Li X Q. 1996. Nitrate pollution of groundwater in northern China. Agriculture, Ecosystems and Environment, 59, 223-231 Zhang Y L, Ju X T 2012. Mining the accumulated nitrate from deep soil layers by rotation with different crops. Scientia Agricultura Sinica, 16, 20-23 Zhu Z L. 1997. Fate and management of fertilizer nitrogen in agroecosystems. In: Zhu Z L, Wen Q X, Freney J R, eds., Nitrogen in Soils of China. Kluwer, Dordrecht, the Netherlands. pp. 239-279. |
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