Subhadri Pal

After watching this course you will be able to know about various characteristics of weeds and their effects on agriculture. Also their control methods also described in this course.

Crack UPSC CSE Prelims and Mains Exams. Know how to prepare for UPSC 2019 and 2020, complete syllabus, exam patterns, latest notifications to join IAS, IFS, IPS and other cadres of Civil Services.

UPSC CSE - GS

UPSC - Civil Services Examination (IAS) Preparation

English

Weeds: Agriculture Optional for UPSC CSE Mains

MCQs

Practice Questions

Practice & Strategy

UPSC CSE

Ace the toughest competitive and government exams in India 

Test Preparation

Union Public Service Commission Exams (UPSC)

UPSC - Mock Test / MCQ

After watching this lesson you will be able to know why you should watch this course and how can you benefited from it. Further total syllabus for the weed portion of Agriculture optional paper is described in this lesson.

Overview of the course

After watching this lesson you will be able to know what are weeds, why they persist in almost every where, their harmful effects & what are the benefits we can derive from it.

Introduction to Weeds

After watching this lesson you will be able to know various ways of weeds reproduction.

Multiplication of Weeds

In this lesson several types of dispersal of weeds are described. Further why weeds are persistent in adverse conditions when other plants are unable to persist in that condition is also described.

Dissemination and Persistence of Weeds

This is the first part of crop-weed interference. In this lesson crop-weed competition for nutrient, water, light & space described.

Crop-Weed Interference 1- Competition

This is the second part of crop-weed interference. In this lesson allelopathy & it's several aspect described.

Crop-Weed Interference 2- Allelopathy

This is the last part of crop-weed interference. In this lesson several factors that may affect the crop-weed competition & critical period of crop-weed competition is described.

Crop-Weed Interference 3- Factors & Critical Period of Competition

This lesson deals with  two types of weed classification- based on life cycle & based on specificity.

Classification of Weeds

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Sudarshan Gurjar

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UPSC/State PSC/SSC

(Hindi) Geography Through MCQ's

Travelling gives you 'experience' & teaching 'immortalizes' it.  Loves both :)  

Vimal Singh Rathore

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(Hindi) Mock Test for UPSC CSE Prelims 2017 - 100 MCQs

MA in Applied Human Rights from Sheffield Hallam University, BA (Hons.) History from LSR, reader, dancer, love to teach, AIR 42 in 2018 UPSC

Nandini Maharaj

This course will be an effort in answer writing, focused on the UPSC Mains 2017/18 exams. Everyday three questions will be discussed. One from current affairs, one static and one previous year question.

July 2017: Daily Mains Mock Questions UPSC CSE

Saurabh Pandey

In this course, the educator will include lessons which will cover important MCQs both from current affairs and Static portion. The course will help students to direct their prelims preparation in the right direction.

(Hindi) Daily Dose MCQs by Saurabh Pandey: UPSC CSE

This course contains models answers on all questions from history in the GS Paper 1. Years 2016-2013 are covered. This will help students prepare history for mains 2017. Sources of study are also covered.

Lessons

8 lessons • 1h 18m

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Overview of the course

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Introduction to Weeds

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Multiplication of Weeds

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Dissemination and Persistence of Weeds

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Crop-Weed Interference 1- Competition

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Crop-Weed Interference 2- Allelopathy

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Crop-Weed Interference 3- Factors & Critical Period of Competition

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Classification of Weeds