Paper Information

Title: 

REDROOT PIGWEED (AMARANTHUS RETROFLEXUS L.) AND JIMSONWEED (DATURA STRAMONIUM L.) RESPONSE TO CORN AND SOYBEAN INTERCROPPING

Type: PAPER
Author(s): REZVANI M.,AGHAALIKHANI M.,ZAEFARIAN F.,RAHIMIAN MASHHADI H.,ZAND E.
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

IN ORDER TO INVESTIGATING THE ROLE OF CORN/SOYBEAN INTERCROPPING IN WEEDS GROWTH, A FIELD EXPERIMENT WAS CARRIED OUT IN RESEARCH FARM OF AGRICULTURE FACULTY OF TEHRAN UNIVERSITY IN 2006. TREATMENTS WERE ARRANGED IN FACTORIAL EXPERIMENT BASED ON RANDOMIZED COMPLETE BLOCKS WITH THREE REPLICATIONS. THE TREATMENTS WERE 5 DIFFERENT MIXING RATIOS OF CORN (ZEA MAYS L.) AND SOYBEAN (GLYCINE MAX L.) CONSIST OF: 100% CORN: 0% SOYBEAN (P1), 75% CORN: 25% SOYBEAN (P2), 50% CORN: 50% SOYBEAN (P3), 25% CORN: 75% SOYBEAN (P4) AND 0% CORN: 100% SOYBEAN (P5) AND 4 LEVELS OF WEED CONTAMINATION CONSIST OF: WEED FREE (W1), INFESTATION OF REDROOT PIGWEED (AMARANTHUS RETROFLEXUS L.) (W2), INFESTATION OF JIMSONWEED (DATURA STRAMONIUM L.) (W3) AND SIMULTANEOUS INFESTATION OF REDROOT PIGWEED AND JIMSONWEED (W4). THE DENSITIES OF THE WEEDS WERE 15 PLANT PER METER OF ROW. THE RESULT SHOWED THAT THE HIGHEST WEED BIOMASS WAS OBTAINED IN MONOCULTURE OF SOYBEAN INFESTED WITH JIMSON WEED AND REDROOT PIGWEED AND LOWEST AMOUNTS IN 50: 50 RATIO (CORN: SOYBEAN), BRANCH NUMBERS AND FLOWER WEIGHT OF WEEDS HAVE ALSO FOLLOWED A SIMILAR TREND. BUT HIGHEST WEED HEIGHT WAS OBSERVED IN P5W3.

 
Keyword(s): REDROOT PIGWEED, JIMSONWEED AND INTERCROPPING
 
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