Growth, yield and nitrogen uptake in rice crop grown under elevated carbon dioxide and different doses of nitrogen fertilizer

被引:0
作者
Raj, Amita [1 ]
Chakrabarti, B. [1 ]
Pathak, H. [3 ]
Singh, S. D. [1 ]
Mina, U. [1 ]
Purakayastha, T. J. [2 ]
机构
[1] ICAR Indian Agr Res Inst, Ctr Environm Sci & Climate Resilient Agr, New Delhi 110012, India
[2] ICAR Indian Agr Res Inst, Soil Sci & Agr Chem, New Delhi 110012, India
[3] Natl Rice Res Inst, Cuttack 753006, Odisha, India
关键词
Climate change; Elevated CO2; Paddy; Oryza sativa; AIR CO2 ENRICHMENT; ORYZA-SATIVA L; SEASONAL-CHANGES; PLANT-GROWTH; TEMPERATURE; DYNAMICS; QUALITY; RATES; WHEAT; FACE;
D O I
暂无
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Climate change associated with rising atmospheric carbon dioxide (CO2) concentration may have impact on crop production and soil health. Increase in atmospheric CO2 concentration may enhance crop growth with higher demand for nutrients by the crop. An experiment was conducted during July-October, 2013 using Free Air Carbon Dioxide Enrichment facility at the Indian Agricultural Research Institute, New Delhi to study the impact of elevated CO2 and nitrogen (N) dose on growth, yield and nitrogen uptake in rice crop. Four doses of N, i.e., control, 0.6 g N pol(-1 )(75% recommended dose of N), 0.8 g N pot(-1 )(100% recommended dose of N) and 1.0 g N pot(-1) (125% recommended dose of N) were applied in both ambient (395 ppm) and elevated CO2 (550 +/- 20 ppm) conditions. Grain and biomass yield of rice was significantly higher under elevated CO(2 )condition. Plant growth and yield parameters also increased with increased N doses in both elevated and ambient CO2 conditions. Nitrogen concentration of grain and straw decreased under high CO2 level but N uptake increased under elevated CO2 condition. Agronomic efficiency of N was higher under elevated CO2 while recovery efficiency of N remained unaffected. The study showed that although yield of rice increases under elevated CO2 condition, to maintain plant nitrogen concentration, application of additional dose of N is required.
引用
收藏
页码:181 / 187
页数:7
相关论文
共 40 条
  • [1] Growth, yield and quality of maize with elevated atmospheric carbon dioxide and temperature in north-west India
    Abebe, A.
    Pathak, H.
    Singh, S. D.
    Bhatia, A.
    Harit, R. C.
    Kumar, Vinod
    [J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2016, 218 : 66 - 72
  • [2] Does elevated atmospheric [CO2] alter diurnal C uptake and the balance of C and N metabolites in growing and fully expanded soybean leaves?
    Ainsworth, Elizabeth A.
    Rogers, Alistair
    Leakey, Andrew D. B.
    Heady, Lindsey E.
    Gibon, Yves
    Stitt, Mark
    Schurr, Ulrich
    [J]. JOURNAL OF EXPERIMENTAL BOTANY, 2007, 58 (03) : 579 - 591
  • [3] [Anonymous], CARBON DIOXIDE POPUL
  • [4] Baker J. T., 1996, CARBON DIOXIDE TERRE, P265
  • [5] Chakrabarti B, 2012, CURR SCI INDIA, V102, P1035
  • [6] Physiology of yield determination of rice under elevated carbon dioxide at high temperatures in a subhumid tropical climate
    De Costa, WAJM
    Weerakoon, WMW
    Herath, HMLK
    Amaratunga, KSP
    Abeywardena, RMI
    [J]. FIELD CROPS RESEARCH, 2006, 96 (2-3) : 336 - 347
  • [7] Dey SK, 2016, J AGROMETEOROL, V18, P7
  • [8] Ditz K, 1988, NITROGEN EFFICIENCY
  • [9] Dlugokencky E., 2015, Trends in Atmospheric Carbon Dioxide
  • [10] More efficient plants: A consequence of rising atmospheric CO2?
    Drake, BG
    GonzalezMeler, MA
    Long, SP
    [J]. ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1997, 48 : 609 - 639