Effects of different irrigation programs and nitrogen levels on nitrogen concentration, uptake and utilisation in processing tomatoes (Lycopersicum esculentum)

ERDAL İ., ERTEK A., ŞENYİĞİT U., YILMAZ H.

Australian Journal of Experimental Agriculture, cilt.46, sa.12, ss.1653-1660, 2006 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 12
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1071/ea04252
  • Dergi Adı: Australian Journal of Experimental Agriculture
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1653-1660
  • Anahtar Kelimeler: N fertilisation, N nutrition, N usage, Plant, Soil water content
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Hayır

Özet

A study was conducted to investigate the effect of different irrigation programs and nitrogen (N) levels on N concentration, uptake and utilisation by the processing tomato (Lycopersicum esculentum). The amount of water used was determined based on a screened class-A pan. Irrigation treatments consisted of 2 different irrigation intervals (I5, 5 days; I10, 10 days) and 3 plant-pan coefficients (Kcp0.50, 0.50; Kcp0.75, 0.75; Kcp1.00, 1.00). Nitrogen treatments consisted of 3 N levels (N0, 0 kg/ha; N80, 80 kg/ha; N160, 160 kg/ha). The irrigation interval, plant-pan coefficient and N fertiliser rate affected all parameters examined; however, the N fertiliser rate had the greatest impact. Nitrogen applications increased N concentrations in the leaf, tomato and vegetative biomass. Plant total N uptake and benefit rate from fertiliser was highest with the N160, I10 and Kcp0.75 and Kcp1.00 treatments. Results show that the N160, I 10 and Kcp0.75 treatments can be used for increasing plant N uptake and the benefit rate from fertiliser. © CSIRO 2006.