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Paper Information

Journal:   JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES)   SPRING 2013 , Volume 5 , Number 1; Page(s) 49 To 65.
 
Paper: 

EFFECT OF COMBINED APPLICATION OF NICOSULFURON+RIMSULFURON AND BROMOXYNIL+MCPA HERBICIDES ON COMMONLY WEEDS CONTROL, YIELD AND YIELD COMPONENTS OF CORN IN KARAJ REGION

 
 
Author(s):  MOTEBAHERI A.*, BAGHESTANI M., ZAND S., ANGAJI S.J.
 
* SCIENCE AND RESEARCH BRANCH, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Evaluate the effect of combined application of two herbicides; nicosulfuron+rimsulfuron and bromoxynil+MCPA for control of narrow and broadleaf weeds in corn; an experiment was carried out in Karaj at Agricultural Research Centers during 2011. The experiment was conducted in a randomized complete blocks design with two factors and four replications. The first factor was nicofulfuron+rimsulfuron dosage at four level:; 0, 125, 150 and 175 grams per hectare and the second factor was bromoxynil+MCPA at 0, 0.5, 1.0 and 1.5 liters per hectare. Additionally, a hand weeded control was added to treatments. Different factors of weed and corn including weed population reduction and dry matter reduction were evaluated 30 and 60 days after spraying. Corn height, forage yield, grain yield and yield components were measured at harvest stage. The results showed that the best combination of tank-mix of the above mentioned herbicides was 1.0 liters per hectare of bromoxynil+MCPA and 125 grams per hectare for nicosulfuron+foramsulfuron. Considering to weed control efficiency, percent of corn yield augmentation (Up to two times) and minimal environmental risk (Due to reduced herbicide), it’s was best selected treatment. These treatments had the best control of weeds and could be used for management of weed resistance to herbicides in corn fields. Because the nicosulfuron+rimsulfuron is an ALS-inhibitor herbicide, combination of two mentioned herbicides, could delayed broadleaf weed resistance to both mentioned herbicides in corn.

 
Keyword(s): JIMSON WEED, REDROOT PIGWEED, RESISTANCE, VENICE MALLOW, YIELD
 
References: 
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