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Paper Information

Journal:   IRANIAN JOURNAL OF FIELD CROPS RESEARCH   2006 , Volume 4 , Number 2; Page(s) 291 To 300.
 
Paper: 

THE EFFECTS OF INTEGRATED AND SINGLE MANAGEMENT METHODS ON WEED BIOMASS AND DENSITY AND TOMATO YIELD

 
 
Author(s):  KAZEROUNI MONFARED E., KOUCHAKI ALI REZA, NASIRI MAHALATI MAHDI, EGHBALI SH.
 
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Abstract: 
Although, various weed control methods have been developed, weeds pose a permanent threat to the crop production. A field study was conducted in 2004 at the Ferdowsi University of Mashhad Research Field to evaluate the effects of different weed managements and their integration on weed density and biomass and tomato yield. The experiment was designed as a strip plot based on complete randomized block design with three replications. Treatments were two tillage systems (reduced and conventional) and six weed management methods (herbicide, rotary cultivator, hand weeding, herbicide plus rotary cultivator, herbicide plus hand weeding, and hand weeding plus rotary cultivator). The herbicide, hand weeding, and rotary cultivator treatments were applied 2, 3, and 6 weeks after transplanting, respectively. The highest and lowest amounts of tomato yields were obtained in herbicide plus rotary cultivator and rotary cultivator, respectively. Density and biomass of broadleaved weeds was affected by different weed managements, and they were controlled by hand weeding and its integration with herbicide better than other treatments. Different weed managements had no effect on grass weeds density, except by the end of growing season. Hand weeding treatment and its integration with herbicide, also, controlled grass weeds better than the other treatments In conclusion, integrated treatments in comparison with single treatments decreased weed density and biomass and increased tomato yield. The least weed control and tomato yield was obtained in rotary cultivator treatment.
 
Keyword(s): REDUCED TILLAGE, CONVENTIONAL TILLAGE, WEEDS, TOMATO, INTEGRATED WEED MANAGEMENT
 
References: 
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