UNIVERSITY OF SARGODHA

COURSE OUTLINE                                                                                              Fall 2020-2021

Course Title:                Principles of Weed Science                      

Course Code:               AGRO-401                 

Credit Hours:               3(2-1)

Instructor:                    Dr. Muhammad Asif   

Email:                          [email protected]

In this course weeds will be studied in relation to their impact on agricultural production. Principles of preventive, mechanical, chemical, cultural and biological weed control will be outlined. Weed identification, sprayer calibration and herbicide application will be performed.

By the end of this course, student should be able to:

• Get knowledge, facts and information from different sources, related to weed biology and management.
• Critically evaluate the importance of different weed management approaches.
• Identify most common summer and winter weeds of field crops found in Pakistan.
• Be able to identify and apply herbicides for the control of weeds in different crops.
• Be able to understand herbicide resistance and integrated weed management.
• Guide the farmers about the weed problems, and their control.

1. Definition and importance of weeds.
2. Yield losses and harmful effects of weeds.
3. Classification and biology of weeds.
4. Weed-crop interference, Competition and allelopathic interactions.
5. Methods of weed management; preventive, cultural, mechanical, biological and chemical.
6. Weed control in major field crops.
7. Integrated weed management.
8. Herbicide resistance and tolerance against weeds and crops. Technical information regarding current herbicides.
9. Mulching and soil solarization.

1. Ashiq, M., M. M. Nayyar and J. Ahmad. 2003. Weed Control Handbook Directorate of Agronomy. Ayub Agri. Res. Inst. Faisalabad.
2.  Gupta, O.P. 1998. Modern Weed Management. Agro Botanica, Bikaner, India.
3. Kumar, J. R. and Jagannathen. 2003. Weed Science Principles. Kalyani Publishers New Delhi.
4. Nayyar, M., M. Ashiq and J. Ahmad. 2001. Manual on Punjab Weeds: Part I and II. Directorate of Agronomy. Ayub Agri. Res. Inst. Faisalabad.
5. Rao, V.S. 2002. Principles of Weed Science 2nd Ed. Sci. Pub. Inc. USA.
6. Zimdhal, R. L. 2007. Fundamental of Weed Science 3rd Ed. Elsevier, Academic Press, USA.
7. Tanveer, A. 2008. Biology and Ecology of Weeds, HEC, Islamabad, Pakistan.
8. Walia, U.S. 2014. Weed Management 2nd Ed. Kalani Publisher New Delhi, India.
9. Tanveer, A. 2006. Weeds and their control
10. K. Rammoorthy and P. Subbian. 2006. Weed Management 1st Ed. Agrotech, Udaipur, India.

1. Students will be involved in different activities related to weed control.
2. Herbicide dose calculation
3. Spray machine calibration
4. Chemical weed control
5. Weed collection and preservation

Mid-term Exam:                        12

Quizzes and Test:                    02

Project:                                    02

Presentation/Assignment:         04

Final Exam:                             20

Practical:                                   20