Download PTU B.Sc Agriculture 2019 May 3rd Semester 72557 SOIL CHEMISTRY FERTILITY AND NUTRIENT MANAGEMENT Question Paper

Roll No.

Total No. of Questions : 09

Total No. of Pages : 02

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B.Sc. (Agriculture) (2014 & Onwards) (Sem.-3)

SOIL CHEMISTRY, FERTILITY AND NUTRIENT MANAGEMENT

Subject Code : BSAG-307

M.Code: 72557

Time: 3 Hrs.

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Max. Marks : 60

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.

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SECTION-A

1. Write short notes on the following :
   1. Top dressing
   2. Role of Ca, Mg and S in plant growth
   3. Sodium adsorption ratio
   4. Critical limit

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   5. Muriate of potash
   6. Incomplete complex fertilizers
   7. Macronutrients
   8. Nutrient deficiency
   9. Soil with pH < 7

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   10. Bone meal fertilizers

SECTION-B

2. Discuss role of beneficial and essential plant nutrients for plant growth.
3. How DRIS approach is beneficial for plant analysis.

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4. Discuss different chemical methods for reclamation of acidic soils.
5. Explain different techniques to increase nitrogen use efficiency.
6. Explain plant tissue tests for nutrients availability.

SECTION-C

7. Discuss salt affected soils and conditions under which these are formed.

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8. Explain different approaches for soil fertility evaluation.
9. Describe fertilizer recommendations of N, P and K fertilizers for some important oil seed crops grown under irrigated conditions.

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.

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