Uptake of Carbon and Nitrogen through Roots of Rice and Corn Plants, Grown in Soils Treated with 13C and 15N Dual-Labeled Cattle Manure Compost

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Abstract

Nitrogen and carbon dynamics in paddy and upland soils for rice cultivation and in upland soil for corn cultivation was investigated by using ^13C and ^15N dual-labeled cattle manure compost (CMC). In a soil with low fertility, paddy and upland rice took up carbon and nitrogen from the CMC at rates ranging from 0.685 to 1.051% of C and 17.6-34.6% of N applied. The ^13C concentration was much higher in the roots than in the plant top, whereas the ^15N concentration differed slightly between them, indicating that organic carbon taken up preferentially accumulated in roots. The ^13C recovery in the plant top tended to be higher in upland soil than in paddy soil, whereas ^15N applied was recovered at the same level in both paddy and upland soils. In the experiment with organic farming soil, paddy rice took up C and N from the CMC along with plant growth and the final recovery rates of ^13C and ^15N were 2.16 and 17.2% of C and N applied. In the corn experiment, a very large amount of carbon from the CMC was absorbed, accounting for at least 7 times value for rice. The final uptake rates of ^13C and ^15N reached about 13 and 10% of C and N applied, respectively. Carbon emission from the CMC sharply increased by 2 weeks after transplanting and the nitrogen emission was very low. It is concluded that rice and corn can take up an appreciable level of carbon and nitrogen from the CMC through roots.

Journal

  • Soil Science and Plant Nutrition

    Soil Science and Plant Nutrition 48(6), 787-795, 2002-12

    Japanese Society of Soil Science and Plant Nutrition

Cited by:  3

Codes

  • NII Article ID (NAID)
    110001717699
  • NII NACSIS-CAT ID (NCID)
    AA00844314
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    00380768
  • NDL Article ID
    6393803
  • NDL Source Classification
    ZR7(科学技術--農林水産--農産)
  • NDL Call No.
    Z53-G349
  • Data Source
    CJPref  NDL  NII-ELS  Crossref 
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