Paper Information

Journal:   IRANIAN JOURNAL OF BIOLOGY   WINTER 2008 , Volume 20 , Number 4; Page(s) 334 To 343.
 
Paper: 

COMPARISON OF CHEMICAL CONTROL AND ALLELOPATHIC EFFECT OF WEEDS IN CHICKPEA UNDER RAINFED CONDITIONS

 
 
Author(s):  SEYED SHARIFI RAOUF*, FARZANEH SALIM, SEYED SHARIFI REZA
 
* FACULTY OF AGRICULTURE, UNIVERSITY OF MOHAGHEGH ARDABILI, ARDABIL, I.R. OF IRAN
 
Abstract: 

In order to comparison the effect of various the values wheat, barley, sufflower and sunflower residues on weeds control in chickpea, an experiment was conducted in 2003 at Agricultural Research Center of Jahad-Keshavarzi Ardabil based on randomized complete block design with three replications. The treatments were no using of plant residues and herbicide, twist hand weeding and using of 2 and 4 kg per plot of wheat, barley, sufflower and sunflower residues. The results showed that application of wheat, barley, sufflower and sunflower residues decreased dry weight and number weeds, while grain yield increased. The highest grain yield (0.767 ton/ hectare) was obtained in treatment of twist hand weeding and in application of 2 kg per plot of barley residue (0.761 ton/hectare). The least grain yield (0.541 ton/hectare) was obtained in treatment of without control. The other experiment in order to study various the values of Lentageran herbicide on weeds control in chickpea was conducted based on randomized complete block design with three replications at the same year and local similar with nine treatments. The treatments were: control ( without of weeds) , twist hand weeding (the first stage 20-30 days and the second stage 50-60 days after emergence) and using of various the values of Lentageran herbicide (0,0.5,1,1.5,2,2.5,3 and 3.5 lit/hectare). The results showed that maximum grain yield was obtained in twist hand weeding (with yield of 0.816 ton/hectare) and application of 2 lit/hectare Lentageran herbicide (with yield of 0.796 ton/he). The least grain yield was belonged to treatment of without control of weeds with yield of 0.542 ton/hectare.

 
Keyword(s): ALLELOPATHY, CHICKPEA, LENTAGERAN HERBICIDE AND WEED
 
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