warzywnictwo warzywnictwo
  Mapa witryny | Dojazd     
sobota, 22.09.2018
.
.




Informacje ogólne
- Strona główna
- O Instytucie
- Dyrekcja
- Działalność
- Struktura organizacyjna
- Rada naukowa
- Konferencje i seminaria
- Aktualności
- Dojazd
Prace badawcze
- Współpraca z zagranicą
- Projekty zagraniczne
- Projekty krajowe
- Własność intelektualna
Usługi
- Oferta usługowa
- Szkolenia
Zasoby
- Strony pracowników
- Biblioteka
Wydawnictwa
- Oferta wydawnicza
- Publikacje
- Vegetable Crops Research Bulletin

General information | Instruction for authors | Search | Select issue
 

 

 

 

 

 

 

 


VCRB :: Contents of Volume 51/1999 :: Detailed information


RESPONSE OF LEEK TO IRRIGATION, FERTIGATION AND BROADCAST NITROGEN FERTILIZATION

Stanisław KANISZEWSKI, Jan RUMPEL, Jacek DYŚKO
Research Institute of Vegetable Crops, Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland


Summary

Research on response of leek (Allium porrum L.) to trickle irrigation, fertigation and broadcast fertilization was conducted in 1997-1998 growing seasons. Fertigation with nitrogen or with a complex fertilizer "Polyfeed" significantly affected growth, yield and nitrogen content of leeks as compared to broadcast nitrogen application. Total and marketable yield of leek was highest with 1/3 preplant and 2/3 trickle applied nitrogen in the total dose of 200 kg N.ha-1. Reduced nitrogen rate to 125 kg N.ha-1, applied in several drip fertigations caused an insignificant reduction in leek yield. In 1997 lowest yield of leek was obtained with only broadcast nitrogen application (without trickle irrigation), in 1998 however, broadcast application of N, both with and without trickle irrigation, produced lowest yield of leek. Fertigated plants had greater leaf area and produced more fresh and dry matter, as compared plants with only broadcast nitrogen application. Leaf N03-� N content in leek plants decreased during growing season and was highest under surface fertigation, intermediate under subsurface fertigation and lowest with only broadcast nitrogen application. No significant differences in total N content of whole leek plants, up to 80 days from transplanting, were found. In later growth stage however, fertigated plants showed higher total N concentration as compared these with only broadcast applied nitrogen.

keywords:leek, nitrogen, fertilization, trickle irrigation, fertigation

[Back]      [Printer friendly version]