WEED MANAGEMENT
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WEED MANAGEMENT
ASAG 2105 (1-1-0)
To familiarize the students about the weeds, herbicides and methods of weed control.
This course offers a wide scope for students in employment and skill development.
Theory
Introduction to weeds, characteristics of weeds their harmful and beneficial effects on ecosystem. Classification, reproduction and dissemination of weeds. Herbicide classification, concept of adjuvant, surfactant, herbicide formulation and their use. Introduction to mode of action of herbicides and selectivity. Allelopathy and its application for weed management. Bio-herbicides and their application in agriculture. Concept of herbicide mixture and utility in agriculture. Herbicide compatibility with agro-chemicals and their application. Integration of herbicides with non chemical methods of weed management. Herbicide Resistance and its management. Transformation of herbicide in plant, Fate of herbicides in soil. Residual effect of herbicides in plant and environment.
Practice
Techniques of weed preservation. Weed identification and their losses study. Biology of important weeds. Study of herbicide formulations and mixture of herbicide. Herbicide and agrochemicals study. Shift of weed flora study in long term experiments. Study of methods of herbicide application, spraying equipments. Calculations of herbicide doses and weed control efficiency and weed index.
Weed survey and vegetation analysis, Field Visit to Farm to observe the effect of various weed management practices in different crops .
References
1. Gupta,O.P. 2012. Modern weed management (4th edition), Agribios (India) Ltd, Jodhpur
2. Rao, V.S. 1992. Principles of weed science ( 2nd edition), Oxford &IBH Publishing Co. Pvt Ltd, New Delhi.
3. Ross,M.A. and Lembi,C.A. 1999. Applied Weed Science. (2nd edition), Prentice Hall of India Pvt Ltd, New Delhi
4. Saraswat,V.N., Bhan, V.M. and Yaduraju,N.T. (Eds.). 1998. Weed management –ICAR Publication
Introduction to Weeds, Characteristics and its effects
introduction to weed
Practice-1 (weed preservation and identification)
https://www.youtube.com/watch?v=IwoVC0e6nHo&t=36s
weed classification
classification of weed
https://www.youtube.com/watch?v=QC9oqot_XR8
Practice 2 (Shift of weed flora)
shift of weed flora
Reproduction and Dissemination of Weeds
reproduction and dissemination
Practice 3 (weed biology)
https://www.youtube.com/watch?v=QvnwhgDCwho
Allelopathy
Allelopathy
https://www.youtube.com/watch?v=vUyoyoLlXYg
Practice 4(weed survey, vegetation and losses)
weed loss studiesweed surveyweed vegetation
Bio-herbicide and herbicide classification
bioherbicide
herbicide classification
https://www.youtube.com/watch?v=-1Vy4_yODw8
Practice 5 (herbicide and agrochemicals)
herbicide and agrochemicals
Herbicide formulations and mode of action
herbicide formulation
mode of action of herbicides
https://www.youtube.com/watch?v=-1Vy4_yODw8
https://www.youtube.com/watch?v=QtC14bq42aw
Practice 6 (Herbicide formulation and mixture)
herbicide formulation and mixture
Herbicide mixture and IWM
https://www.youtube.com/watch?v=_OMcALg9t-Y
Practice 7 (Herbicide application methods)
herbicide application methods
Transformation of herbicide in plants and fate of herbicide in soil.
Transformation of herbicide in plants
Fate of Herbicides in Soil
https://www.youtube.com/watch?v=gluE3paDqQA
Practice 8(herbicide spraying equipments)
https://www.youtube.com/watch?v=GyenD-9ejvA
Herbicide resistance management and residual effect of herbicide.
herbicide resistance management
https://www.youtube.com/watch?v=9clmjyGWebg
Practice 9 (Weed control efficiency and weed index)
https://www.youtube.com/watch?v=ii6-hBsL4gU
Residual effect of herbicide.
https://www.youtube.com/watch?v=JM3nBEFXkUQ
Practice 10 (Herbicide dose)
herbicide dose
Assistant Professor, Department of Agronomy, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Odisha, India
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