Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES   Summer 2005 , Volume 11 , Number 2; Page(s) 179 To 192.
 
Paper: 

THE EFFECTS OF DIFFERENT RATES OF SULFUR COATED UREA AND OTHER NITROGEN FERTILIZER SOURCES ON SEED YIELD AND QUALITY OF WINTER RAPESEED

 
 
Author(s):  TAHER KHANI MARYAM, GOLCHIN A., NOURMOHAMMADI GHORBAN
 
* 
 
Abstract: 

In order to study the effects of different rates of sulfur coated urea and other nitrogen fertilizer sources on seed yield and quality of winter rapeseed (SLM046 Variaty) an experiment was conducted in Zanjan Agricultural Research Center during year 2001. The experiment was carried out in three replications using a factorial experiment with a randomized complete block design .Five rates of N(0,60,120,180 and 240 kg/ha) from four different sources (sulfur coated urea (s1),urea (s2) ,ammonium nitrat (s3) and ammonium sulphate(s4) )were used in this experiment . The results obtained from analysis of variance showed that rate and sources of nitrogen had significant effects on seed yield (p<5%<p<1% respectively). Interaction effects of nitrogen rates and sources on seed yield was not significant. The highest seed yield (4216kg/ ha) was obtained from the application of 240 kg/ha N and the least yield (2408kg/ha) was obtaind from control(without nitrogen fertilizer) treatment. The results showed that the best source of nitrogen is Urea and the best rate of nitrogen is 240kg N. Highest yield was obtained from S 2 N 240 treatment. The highest oil yield was also obtained with highest rate of nitrogen, showing that rapeseed has high nitrogen requirement .there was a positive and significant correlation between seed yield and plant characteristics such as leaf nitrogen content<pod number, grain protein content, biomass production, plant height, leaf number and grain number per pod. There was a great correlation between oil yield and grain yield (r=0/99**). According to this results, selection of Nitrogen fertilizer sources and rates of nitrogen must be selected according to yield potential of canola cultivars.

 
Keyword(s): SOURSE OF FERTILIZER, NITROGEN, RAPESEED, OIL YIELD
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 86
 
Latest on Blog
Enter SID Blog