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Guidelines_English_Final
تحميل الدليل التدريبي

أسئلة شائعة


 

PPS 347: Weeds And Weeds Control 2(1+1) credits

Course Description

This course study the weeds importance , classification , dispersal , characteristics and competition with field crops in addition to study principles , methods and applied importance of herbicides with concern to the applied protection programs of field crops in Saudi Arabia.

Laboratory studies

morphology and classification of weed plants. Collecting and germinating seeds of some common local weeds. Weed Seeds fertility and viability.  Herbicides groups, commercial and scientific names, applications, hazards and precautions. 

Text book:

·         Field Crops: weeds. Morse, M. A. & Abdel-Gawad, A. (1963). Egyptian Anglo Library Publisher.

·         Weeds In Saudi Arabia (Laboratory Training). Isa, A. M. (1999). King Saud Publication, Riyadh 

Examinations 

There will be four 1-HOUR EXAMINATIONS during the semester, and a FINAL EXAMINATION. The final exam will be comprehensive. Grades will be based on the percentage of total points acquired in the examinations:

A+ ≥ 95%               A  = 90-94%      B+ = 85-89%

B  = 80-84%            C+ = 70-79%      C  = 70-74%

D+ = 65-69%           D  = 61- 64%      F  < 60%

Attendance

Under the University regulations, students will fail the course if their absence exceeds 25% of the total number of lectures. A grade Denied (DN) will be shown in his transcript.

 


 

 Course Outline                                                           

 

Weeks

Lecture Titles

1

Introduction: weeds importance, classification and effects on agricultural production.

2

 

Weeds common features, types and their propagation

3

 

Weeds problem, costs and medical uses

4

 

Dormancy effects, types and life cycles of weed plants and seeds

5

.

Weeds establishment, competition effects  on plant crops

6

Factors affecting competition, dispersal, seeds viability and survival

7

Controlling weeds: naturally, by agricultural practices and rotations

8

1st annual test

9

Applied importance of herbicides', regulations and useful recommendations

10

 

The strategic plans of weeds protection, time and applications of herbicides

11

 

Herbicides classes, scientific and commercial names, common groups

12

Weeds resistance of herbisides

13

Herbicides speciality in weeds protection: points,  applied importance

14

Design of protection programs of weeds in field crops and horticulture and examples.

2nd annual test

15

Final exam

 

 

 
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