HPSC ADO Descriptive Notes - 15 Unit Practice Papers with Model Answers

The HPSC ADO Descriptive Notes from GD Sir's Classes are written for the Subject Knowledge Test (SKT) of the Haryana Public Service Commission Agriculture Development Officer exam. The SKT is a descriptive (written) paper of 150 marks in 3 hours and carries 87.5% of the final merit, so writing good answers decides selection. These notes give you 15 unit-wise practice papers, one for each unit of the agriculture syllabus, each with a full set of model answers.

What is inside

• 15 PDFs, one per unit, about 207 pages in all

• 330 descriptive questions: 22 per unit in three sections, 10 short answers (2 marks), 8 short notes (5 marks) and 4 long answers (10 marks), 100 marks per paper

• Model answers for every question at the end of each paper, written the way a top-scoring candidate answers: definition, structured points, comparison tables and a short conclusion

• Worked numericals with every step and unit: seed rate, plant population, fertilizer and gypsum requirement, irrigation depth and duration, herbicide dose, cost of cultivation, B:C ratio, heterosis, linkage and more

• Haryana field problems in every unit: sodic land, falling groundwater, paddy straw burning, Phalaris minor, pink bollworm, cotton leaf curl, yellow rust, waterlogging and state schemes

• Printed in a standard exam-paper format (Times New Roman), so you can practise each paper in 3 hours before checking the answers

Units covered

1. Ecology and Environment

2. Cropping Systems and Farming Practices

3. Forestry

4. Weed Management

5. Soil Science

6. Soil and Water Conservation

7. Irrigation and Water Management

8. Farm Economics and Management

9. Agricultural Extension

10. Genetics and Plant Breeding

11. Seed Technology

12. Plant Physiology

13. Horticulture

14. Pest and Disease Management

15. Food Security and Policies

How the notes were checked

Every paper was checked by an independent agriculture examiner: each fact, figure and scheme detail was verified and every numerical was worked again before publishing. Scheme content is current to November 2026.

Who these notes are for

Candidates who cleared the HPSC ADO screening test and are preparing for the descriptive Subject Knowledge Test, and B.Sc. Agriculture graduates preparing for other descriptive agriculture officer papers. HPSC has not published a marks-wise question split for the SKT, so the 2, 5 and 10-mark format here is a practice format by GD Sir's Classes; check the official HPSC notification for your recruitment.

Also try the HPSC ADO Mock Test Series - 15 Unit-Wise Tests by GD Sir's Classes for quick objective revision of the same units.