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2025 Vol.52, Issue 4 Preview Page

Plant & Forest

Effect of basal fertilizer types and fertigation ratio on yield and nitrogen use efficiency of carrot in upland cultivation
Minji Kim1
,
Boyun Lee1
,
Minchang Kim1
,
Jwakyung Sung1*
1Department of Crop Science, Chungbuk National University, Cheongju 28644, Korea
*Corresponding Author
1 December 2025. pp. 575-585
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Abstract

As a root vegetable, carrot requires consistent nutrient availability throughout the growing season to reach optimal yield. Developing an effective fertigation strategy is therefore essential for open-field carrot production in upland cultivation. The objective of this study was to investigate nitrogen use efficiency (NUE) and yield under different basal fertilizers (livestock compost, LC; organic fertilizer, OF; and a 1 : 1 mixture, LC+OF) and fertigation ratios (100:0, 50:50 and 30:70). The treatment without fertilizer application was used as the control. The treatments OF100:0, LC30:70, and LC+OF30:70 enhanced nutrient uptake (nitrogen, phosphorus, and potassium), NUE, and yield, indicating that synchronizing nutrient release with crop demand is more critical than the absolute basal-to-topdressing ratio. OF supplied readily available N for early growth, while LC supported later uptake through gradual mineralization, underscoring the importance of aligning fertilizer type with fertigation ratio. Further research comparing fertigation with conventional fertilization in upland carrot is needed to confirm these findings across diverse conditions.

Keywords
by-product fertilizer
Daucus carota L.
fertigation
nitrogen use efficiency
yield
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Information
  • Publisher :Institute of Agricultural Science, Chungnam National University
  • Publisher(Ko) :충남대학교 농업과학연구소
  • Journal Title :Korean Journal of Agricultural Science
  • Journal Title(Ko) :농업과학연구
  • Volume : 52
  • No :4
  • Pages :575-585
  • Received Date : 2025-08-10
  • Revised Date : 2025-09-30
  • Accepted Date : 2025-10-01
  • DOI :https://doi.org/10.7744/kjoas.520414
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