Download PTU B.Sc-Agriculture 2020 March 7th Sem 74830 Weed Management Question Paper

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Roll No. HEEEEEEEEEE Total No. of Pages : 02

Total No. of Questions : 09

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B.Sc. Agriculture (2014 to 2018) (Sem.-7)

WEED MANAGEMENT

Subject Code : BSAG-CS703

M.Code : 74830

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Q1. Write short notes on :

1. Weedicide
2. Weed biology
3. Aquatic weed
4. Prevention

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5. Eradication
6. Collego
7. Roundup ready seed
8. Compatibility
9. Blind hoeing

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10. Herbicide

SECTION-B

Q2. Define weed integrated management.

Q3. Discuss weed management in organic crops.

Q4. Define adjuvants. Write their use in herbicides.

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Q5. Define weed. Write their advantages and disadvantages.

Q6. Discuss shift in weed flora in different cropping systems

SECTION-C

Q7. Discuss different methods of weed management, in detail.

Q8. What do you know about herbicide selectivity? Discuss fate of herbicides in soil.

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Q9. Differentiate competition and allelopathy. Discuss allelopathy in detail.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.