Paper Information

Title: 

EFFECT OF WINTER RYE COVER CROP ON WEED MANAGEMENT IN CORN

Type: PAPER
Author(s): MAFAKHERI SAEED,ARDAKANI MOHAMMAD REZA,MIRHADI MOHAMMAD JAVAD,MEIGHANI FARIBA,VAZAN SAEED
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

IN RECENT YEARS, UNCONTROLLED APPLICATION OF CHEMICAL HERBICIDES HAS INCREASED CONCERNS OVER DESTRUCTIVE IMPACTS OF THESE MATERIALS ON LIVING ORGANISMS AND ENVIRONMENTAL HEALTH AND IT REQUIRES STUDIES ON NON-CHEMICAL WEED MANAGEMENT TECHNIQUES. AS A RESULT, THIS EXPERIMENT WAS INITIATED IN NOVEMBER 2008 AT KARAJ ISLAMIC AZAD UNIVERSITY RESEARCH FARM, TO EVALUATE WEED-SUPPRESSIVE ABILITY OF WINTER RYE COVER CROP COMPARED TO WINTER FALLOW IN ROTATION WITH MAIZE. EXPERIMENTAL DESIGN WAS RANDOMIZED COMPLETE BLOCK (RCBD) IN SPLIT PLOT ARRANGEMENT WITH FOUR REPLICATIONS. TREATMENTS INCLUDED THREE LEVELS OF RYE DENSITY PLUS THREE LEVELS OF RYE CUT STAGE. RESULTS SHOWED THAT RYE DENSITY DOES NOT AFFECT WEEDS SIGNIFICANTLY BUT STAGES OF RYE CUT DID. ALTHOUGH THE FIRST CUT STAGE STIMULATED THE GERMINATION AND BIOMASS PRODUCTION OF WEEDS, BUT THE THIRD CUT STAGE COULD CONTROL WEEDS SIGNIFICANTLY. 32.16% AND 27.68% OF DENSITY CONTROL FOR JIMSONWEED (DATURA STRAMONIUM) IN FOURTH AND SIXTH WEEK (RESPECTIVELY) AND 26.61% OF BIOMASS CONTROL FOR COMMON PURSLANE (PORTULACA OLERACEA) IN SIXTH WEEK AFTER MAIZE PLANTING WAS THE BEST RESULTS WHICH WERE ACHIEVED IN THIRD CUT STAGE TREATMENT.

 
Keyword(s): WEEDS, COVER CROP, MULCH, RYE (SECALE CEREALE L.)
 
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