Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1386
10
1
gregorian
2008
1
1
10
1
online
1
fulltext
en
Evaluation of Barley–Vetch Intercrop at Different Nitrogen Rates
To evaluate the yield and quality of barley (Hordeum vulgare)–vetch (Vicia desycarpa) intercropping, a series of experiments were conducted at the Experimental Field of the College of Agriculture, University of Tehran, in Karaj (Iran) from 2003 to 2005. The ex-periments were arranged in a randomized complete block with a split plot design and four replications. Three levels (0, 45 and 90 Kg N ha-1) of nitrogen fertilizer and three cropping systems (sole barley, sole vetch and barley-vetch intercropping) were allocated to the main and sub plots, respectively. The barley-vetch intercropping treatment had a replacement arrangement (50: 50) with single alternate rows. Land equivalent ratio (LER), was used to compare sole cropping with intercropping systems. Results showed the supremacy of intercropping of barley and vetch over single crops. Generally, increas-ing nitrogen fertilizer caused a decreasing trend in the biological efficiency of intercrop-ping. The highest LER for grain was obtained in control (N fertilizer free) plots (LER= 1.145). Nitrogen fertilizer increased the forage yield, grain yield, crude protein content, and crude protein yield of barley and vetch in sole and intercrops. Nitrogen application increased water use efficiency. In this study, barley was the dominant crop. The inter-cropping vetch and barley had the highest productivity and crude protein yield.
barely,Intercropping,Nitrogen,Vetch,WUE
23
31
http://jast.modares.ac.ir/browse.php?a_code=A-10-1000-4353&slc_lang=en&sid=23
Gh. R.
Mohsenabadi
Gh. R.
Mohsenabadi
100319475328460045270
100319475328460045270
Yes
Department of Agronomy, College of Agriculture, University of Guilan, Rasht, Islamic Republic of Iran.
Department of Agronomy, College of Agriculture, University of Guilan, Rasht, Islamic Republic of Iran.
M. R.
Jahansooz
M. R.
Jahansooz
100319475328460045272
100319475328460045272
No
Department of Agronomy, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
Department of Agronomy, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
M. R.
Chaichi
M. R.
Chaichi
100319475328460045273
100319475328460045273
No
Department of Agronomy, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
Department of Agronomy, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
H.
Rahimian
H.
Rahimian
100319475328460045274
100319475328460045274
No
Department of Agronomy, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
Department of Agronomy, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
A.
Liaghat
A.
Liaghat
100319475328460045275
100319475328460045275
No
Department of Irrigation, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
Department of Irrigation, College of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
Gh. R.
Savaghebi
Gh. R.
Savaghebi
100319475328460045276
100319475328460045276
No
Department of Soil Science, College of Agriculture, University of Tehran, Karaj, Islamic Republic of
Iran.
Department of Soil Science, College of Agriculture, University of Tehran, Karaj, Islamic Republic of
Iran.