OPSC AAO study plan

List the core sub-areas of the Agriculture domain (agronomy, soil science, horticulture, plant protection, animal husbandry, agricultural economics, extension) and rank them by your current confidence

Define the syllabus boundary for each sub-area so you know what is in scope and what is not

Build a one-page concept map linking soil, crop, water, and nutrient relationships

Start a spaced-repetition deck with 40 foundational terms (soil profile horizons, soil texture classes, macro and micronutrients, cropping systems)

Explain soil formation factors, soil profile horizons, and physical properties (texture, structure, bulk density, porosity) in writing without notes

Classify soils by texture using the textural triangle and state the agronomic implications of each class

Describe soil pH, cation exchange capacity, base saturation, and their effect on nutrient availability

Compare the major soil orders or the Indian soil classification groups and match each to a typical crop belt

Detail the 16 essential plant nutrients, their deficiency and toxicity symptoms, and the fertilizer sources that supply each

Compute fertilizer doses for N, P, and K using straight and complex fertilizers, including unit conversions to elemental form

Explain integrated nutrient management, organic manures, green manuring, and biofertilizers with examples

Describe irrigation scheduling methods, water-use efficiency, and drainage and salinity management practices

Explain the principles and methods of crop production: tillage, seed rate, sowing geometry, spacing, and cropping systems (sole, mixed, relay, intercropping)

Compare irrigation and dryland farming practices, moisture conservation, and watershed management

Summarize weed biology and integrated weed management, including herbicide classification and modes of action

Describe the major crop groups (cereals, pulses, oilseeds, fibre, sugarcane, plantation crops) with their package of practices at a summary level

Identify major insect pests of field crops, their damage symptoms, and integrated pest management options, including economic threshold levels

Identify major fungal, bacterial, and viral diseases with characteristic symptoms and their management

Classify pesticides, explain formulation types, and state safety, residue, and resistance-management principles

Explain seed production, certification, and quality control, including seed testing parameters

Describe animal husbandry and dairy basics: breeds of cattle, buffalo, goat, and poultry, breeding systems, and lactation

Explain animal nutrition, feed composition, and common livestock diseases with vaccination schedules

Summarize fisheries and aquaculture systems at an awareness level

Cover agricultural extension: transfer of technology, extension methods, and the roles of KVK, ATMA, and cooperatives

Explain agricultural economics: farm costing, cost concepts (A1, A2, B, C), farm budgeting, and measures of farm efficiency

Compute gross margin, net return, benefit-cost ratio, and break-even yield from given farm data

Describe agricultural marketing channels, price behaviour, MSP, procurement, and cooperative marketing

Summarize major agricultural schemes, credit institutions, and insurance and risk-management instruments

Revise the full domain using only your own summary sheets and error log, closing every flagged weak area

Complete three timed full-length mock tests under exam conditions and analyse each attempt by sub-area

Convert recurring mock-test errors into 30 new spaced-repetition cards and clear them

Rehearse high-yield factual lists: crop seasons, soil types, thresholds, vaccine schedules, and scheme names