Paper Information

Title: 

EFFECTS OF VARIOUS PLANTING PATTERNS AND HERBICIDES APPLICATOPN ON WATER USE EFFICIENCY AND GRAIN YIELD OF CORN (ZEA MAYS)

Type: PAPER
Author(s): GHANBARI BIRGANI D.,ZAND E.,BARZEGARI M.,KHORRAMIAN M.
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

THIS EXPERIMENT WAS CONDUCTED FROM 2005 TO 2006 TO EVALUATE THE EFFECTS OF PLANTING METHODS AND HERBICIDES ON WEEDS AND GRAIN YIELD OF CORN AND ALSO INCREASING WATER USE EFFICIENCY AT DEZFUL AND KARAJ, I. R. IRAN. THE EXPERIMENTAL DESIGN WAS A RANDOMIZED COMPLETE BLOCK WITH STRIP BLOCK ARRANGEMENT OF TREATMENTS WITH THREE REPLICATIONS. PLANTING METHOD WAS AS VERTICAL FACTOR AT FOUR LEVELS CONSISTING: PLANTING OF ONE AND TWO ROWS OF CORN ON BEDS AND ONE AND TWO ROWS OF CORN IN FURROWS. APPLICATION OF HERBICIDES WAS AS HORIZONTAL FACTOR AT SIX LEVELS CONSISTING OF: PREEMERGENCE APPLICATION OF THE MIXTURE OF ATRAZINE+ALACHLOR AT (0.8+2) KG AI/HA AND ALSO AT 25% REDUCED RATES, PREPLANT APPLICATION OF EPTC AT 4 KG AI/HA AND ALSO AT 25% REDUCED RATE, WEEDY AND WEED FREE CHECKS. COMPARED TO THE WEEDY CHECK, ON AVERAGE, TOTAL WEED DENSITY WAS REDUCED AT DEZFUL, BY APPLICATION OF ATRAZINE+ALACHLOR TREATMENTS BY 63%, AND AT KARAJ, BY APPLICATION OF ATRAZINE+ALACHLOR AND EPTC TREATMENTS BY 65, AND 56%, RESPECTIVELY. AT DEZFUL AND KARAJ, WEED FREE CHECKS IN PLANTING METHOD OF TWO ROWS OF CORN ON BEDS WITH 13.34 AND 12.91 T/HA HAD THE HIGHEST AND APPLICATION OF EPTC AT 3 KG AI/HA AND WEEDY CHECK BOTH IN PLANTING METHOD OF ONE ROW OF CORN IN FURROWS WITH 6.99 AND 4.38 T/HA HAD THE LOWEST CORN GRAIN YIELD, RESPECTIVELY.

 
Keyword(s): CORN, WEEDS, PLANTING PATTERN, IN FURROW PLANTING, HERBICIDE
 
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