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Paper Information

Title: 

CROP ROTATION EFFECTS ON DIFFERENT WEED SPECIES APPEARANCE

Type: PAPER
Author(s): ALIMORADI L.,RASSHED M.H.,KHAZAEE H.R.,AHMADIAN YAZDI A.
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

CROP ROTATION COULD CHANGE WEED COMMUNITY STRUCTURE BY DIFFERENT MANAGEMENT. IN ORDER TO EVALUATE THE WEED SPECIES RESPONSE TO DIFFERENT CROPS AND CROP ROTATIONS, AN EXPERIMENT WAS CONDUCTED TO INVESTIGATE THE WEED POPULATION IN 84-85 & 85-86 GROWING SEASONS. IN THIS EXPERIMENT, CROPS WERE: CORN, SUGAR BEET, CUMIN, CICER, ONION, HEY, BARLEY AND FALLOW. THE FIELDS THAT WERE SOWN SUGAR BEET, CUMIN, CICER, ONION IN THE FIRST YEAR, WERE PLANTED BARELY IN THE SECOND YEAR AND OTHER FIELDS WERE PLANTED THE SAME CROPS. SPECIES SUCH AS YELLOW NIGHTSHEDE, GARDEN PURSLAN, AND RED ROOT PIGWEED HAD MORE CORRELATION WITH CORN. DANDELION AND DODDER WERE SEEN MORE IN HEY FIELDS. THE EFFECTS OF CROP ROTATION ON WEED SPECIES APPEARANCE AND DENSITY SHOWED THAT CREEPING OXALIS, SHEPHERD'S PURS AND PERSIAN SPEED WEEL HAD CORRELATION WITH ONIONBARLEY ROTATION. INDIAN MALLOW AND CREEPING OXALIS WERE SEEN MORE IN SUGAR BEET-BARLEY ROTATION. PCA WEED POPULATION ANALYSIS WAS SHOWN THAT THERE WAS RELATION BETWEEN CROP ROTATION AND WEED COMMUNITY.

 
Keyword(s): PCA, WEED POPULATION, CROP ROTATION
 
 
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