Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Nitrogen uptake dynamics, yield and quality as influenced by nitrogen fertilization in "Piel de sapo" melon.
Year:2012
Research Areas
  • Mathematics,
  • Natural sciences and health sciences,
  • Earth sciences,
  • Soil science
Information
Abstract
The need to reduce nitrogen (N) fertilizer pollution strengthens the importance of improving the utilization efficiency of applied N to crops. This requires knowledge of crop N uptake characteristics and how fertilization management affects it. A three-year field experiment was conducted from May to September in central Spain to investigate the influence of different N rates, which ranged from 11 to 393 kg ha-1, applied through drip irrigation, on the dynamics of N uptake, nitrogen use efficiency (NUE), fruit yield and quality of a ?Piel de sapo? melon crop (Cucumis melo L. cv. Sancho). Both N concentration and N content increased in different plant parts with the N rate. Leaves had the highest N concentration, which declined by 40-50% from 34-41 days after transplanting (DAT), while the highest N uptake rate was observed from 30-35 to 70-80 DAT, coinciding with fruit development. In each year, NUE declined with increasing N rate. With N fertilizer applications close to the optimum N rate of 90-100 kg ha-1, the fruits removed approximately 60 kg N ha-1, and the amount of N in the crop residue was about 80 kg N ha-1; this serves to replenish the organic nutrient pool in the soil and may be used by subsequent crops following mineralization.
International
Si
JCR
Si
Title
Spanish Journal of Agricultural Research
ISBN
1695-971X
Impact factor JCR
0,615
Impact info
Datos JCR del año 2011
Volume
10
Journal number
3
From page
756
To page
767
Month
SIN MES
Ranking
Participants
  • Autor: M.J. Cabello
  • Autor: M.T. Castellanos
  • Autor: Ana Maria Tarquis Alfonso (UPM)
  • Autor: M.C. Cartagena
  • Autor: A. Arce
  • Autor: F. Ribas
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Automatización en Señal y Comunicaciones (GASC)
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM)
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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