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Paper Information

Title: 

WEED CONTROL IN WHEAT BY NO CHEMICAL METHODS

Type: PAPER
Author(s): POURMORAD KALEIBAR BEHNAZ,MOHAMMADDUST HAMIDREZA,ASGHARI ALI
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

THE PROBLEMS PRODUCED BY MUCH USING OF HERBICIDES CAUSES THAT RESEARCHERS SEEK NO CHEMICAL METHODS FOR WEEDS CONTROL. THIS EXPERIMENT CONDUCED IN 2008 TO STUDY THE EFFECTS OF NITROGEN AND MANURE ON YIELD AND WEED CONTROL IN WHEAT, AT AGRICULTURAL RESEARCH SITE IN AGRICULTURAL COLLEGE, UNIVERSITY OF MOHAGHEGH ARDABILI. THE EXPERIMENT WAS LAID OUT AS FACTORIAL IN RANDOMIZED COMPLETE BLOCK DESIGN. WITH THREE REPLICATION. THE TREATMENTS CONSISTED OF THREE NITROGEN LEVELS: [0 (CONTROL), 150, 300 KGNHA-1] AND TWO MANURE LEVELS [APPLICATION 30 THA-1AND NO APPLICATION]. DATA SHOWN THAT MANURE APPLICATION HAD NO A SIGNIFICANT EFFECT ON WEED DENSITY, WEED DRY MASS AND WHEAT YIELD. ANALYSIS SHOWN THAT DIFFERENT NITROGEN LEVELS HAD A SIGNIFICANT EFFECT ON WEED DENSITY AND WEED DRY MASS. THREE HUNDRED KGNHA-1 APPLICATIONS DECREASED WEED DENSITY AND INCREASED THEIR DRY MASS. THREE HUNDRED KG NHA-1 APPLICATIONS IN COMPARISON CONTROL DECREASED WEED DENSITY 17.6%, THAT THIS DIFFER WAS SIGNIFICANT, BUT 150 KG NHA-1 APPLICATION IN COMPARISON 300 KG NHA-1 INCREASED WEED DENSITY. ANALYSIS INDICATE THAT WHEN THERE ARE NO COMPETITION BETWEEN WEEDS AND WHEAT, NITROGEN APPLICATION INCREASED WHEAT YIELD, BUT WHEN WEED COMPETE WITH WHEAT, NITROGEN HAD NO SIGNIFICANT EFFECT ON WHEAT YIELD. THE RESULTS INDICATE THAT WITH NITROGEN APPLICATION MANAGEMENT CAN CONTROL WEEDS IN WHEAT WITHOUT USE HERBICIDES.

 
Keyword(s): WEED, NITROGEN, NO CHEMICAL CONTROL
 
 
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