tailieunhanh - Influence of intercropping and weed management practices on weed parameters and yield of maize

A field experiment was conducted at Tamil Nadu Agricultural University, Coimbatore during kharif 2015 to investigate the influence of intercropping systems and weed management practices on weed density, dry weight and weed control efficiency in maize under irrigated condition. The experiment was laid out in split plot design and replicated thrice. Three intercropping systems viz., maize alone (I1), maize + blackgram (1:1 ratio) (I2) and maize + blackgram (2:2 ratio) (I3) were evaluated under main plot and four weed management practices viz., unweeded check (Control) 9 (W1), Pendimethalin kg ha-1 as pre emergence (PE) 3 DAS + one hand weeding at 25 DAS (W2), Imazethapyr 75 g ha-1 as post emergence (POE) 25 DAS (W3) and Pendimethalin kg ha-1 as PE 3 DAS + Imazethapyr 75 g ha-1 as POE 25 DAS (W4) were accommodated under subplot. Observations on weed parameters viz., weed density, weed dry weight and weed control efficiency were recorded. The results of the experiment revealed that among the intercropping systems, maize + blackgram (1:1) intercropping and among weed management practices, pendimethalin kg ha-1 as PE 3 DAS + one HW 25 DAS recorded lesser total weed density and weed dry weight. Maize + blackgram intercropping along with pendimethalin kg ha-1 as PE 3 DAS + one HW 25 DAS recorded higher weed control efficiency. The sole crop of maize recorded higher yield than maize under intercropping systems followed maize + blackgram intercropping at 1:1 ratio. | Influence of intercropping and weed management practices on weed parameters and yield of maize

• Nông nghiệp
• Weed control
• Yield of maize
• Weed management practices
• Weed parameters
• Blackgram intercropping
• Planting method
• Weed control efficiency
• Weed dry matter
• Weed index
• Weed management
• Weed population
• Yield of mustard crop
• Dry weight
• Agronomic practices
• Weed management practices on weed dry weight
• Direct seeded rice under rainfed condition
• Weed density
• Weed control efficiency in irrigated cotton
• Tree leaf extract spray
• Different intercropping system
• Total weed count
• Cluster bean during summer
• Integrated weed management practices against
• Control efficiency
• Sequential application
• Weed control in cotton
• Herbicides for weed control
• Black soils
• Randomised block design replicated thrice
• Integrated weed management
• Weed dynamics
• Soyabean [Glycine max (L
• ) Merill]
• Weed dynamics of soyabean
• Higher weed control efficiency resulting
• Growth and yield
• Summer sesamum
• Spacing and weed management
• Weed control efficiency influence
• Hyderabad conditions
• Different levels of nitrogen
• Weed parameters of Gaillardia
• Seed yield
• Weed control index
• Weed flora
• Irrigated ecosystem
• Management on weed interference
• Nutrient depletion by weeds
• Calendar days
• Green gram
• Phenological behaviour
• Weed dynamics and productivity
• Green gram influenced
• Weed control treatments
• Mustard (Brassica Juncea L )
• Planting and management
• Different planting methods
• Dry weight of weeds
• Weed management in ginger
• Integrated approaches
• Quite meager
• Management practices on weed population
• Organic wheat
• Organic manure
• Non chemical weed control
• Deficit plant nutrients
• Especially nitrogen
• Pre emergence
• Post emergence herbicides
• Yield in wheat
• Chilli onion intercropping
• Onion intercropping system
• Chemical weed control in chilli
• Followed by pendimethalin
• Weeding tools
• Weed control efficiency and economics
• Weed control measures
• Wheat (Triticum aestivum L )
• Different weeding tools
• Grain yield
• Straw yield
• Eucalyptus tereticornis based
• Effect of weed control methods
• Crop growth rate
• Relative growth rate
• Sowing dates
• Weed control measure
• Weed control measure on growth
• Yield of chickpea
• Quizalofop ethyl
• Different weed control methods
• Weed control methods on growth
• Yield attributing characters
• Yield attributing characters of Kalmegh
• Herbicidal weed control
• Yield of soybean
• Growth of soybean
• Such situation to minimize
• Weed growth
• Rice (Oryza sativa L
• Aerobic rice
• Chickpea (Cicer arietinum L )
• Evaluation of new herbicides
• Weed flora and productivity
• Plant spacing
• Weed control practices
• Plant spacing and weed management practices
• Yield of hybrid maize
• Zero tillage
• Straw mulching