Agronomy 🌾
Crop production systems, cropping patterns, tillage, weed management, irrigation, organic farming, soil health. Covers Basics of Agriculture, Principles of Agronomy, Crop Production, Water Management, Mushroom Cultivation & Meteorology.
Course Structure
What's Inside
Principles of Agronomy
Principles of agronomy — soil-plant-atmosphere relationships, cropping systems, crop rotations, intercropping, weed-crop competition, sustainable agriculture, organic farming, and natural-farming policy concepts. 8 lessons.
Meteorology 🌦️
Atmospheric layers, monsoons, solar radiation, temperature, humidity, wind, clouds, drought, agro-climatic zones, and climate classification for competitive exams.
Water Management
Irrigation methods (surface, drip, sprinkler), water use efficiency, drainage systems, watershed management, water harvesting structures, command area development — high-scoring topic for all agriculture exams.
Weed Science
Comprehensive course on Weed Science covering classification, control methods, herbicides, allelopathy, weed indices, and integrated weed management.
Crop Production
Kharif and rabi crop production — paddy, wheat, maize, cotton, sugarcane, pulses, oilseeds. Covers tillage, sowing methods, seed rate, fertilizer schedules, irrigation, harvesting and threshing. 36 lessons.
Mushroom Cultivation 🍄
Pedagogically arranged mushroom cultivation course from fungal basics to spawn, substrate science, button mushroom production, tropical mushrooms, IPM, post-harvest and enterprise.
What is Agronomy?
Agronomy is the science and technology of producing and using plants for food, feed, fibre, and fuel — integrating knowledge from soil science, plant physiology, meteorology, and ecology to maximise crop productivity within sustainable limits. India's agricultural system, which feeds 1.4 billion people across wildly diverse agro-climatic conditions, rests on agronomic principles developed over decades of research at ICAR institutes, State Agricultural Universities, and farmer fields.
For competitive exam aspirants, Agronomy consistently forms the largest single section of IBPS AFO Professional Knowledge and is a major component of NABARD Grade A Agriculture papers. Unlike theoretical subjects, Agronomy demands precision — exact seed rates, specific fertilizer doses, irrigation schedules tied to crop growth stages, herbicide names, and numerical indices that appear directly as MCQ options.
The AgriDots Agronomy course is organised into six focused sub-courses, each covering a distinct domain: Principles of Agronomy, Crop Production, Water Management, Weed Science, Meteorology, and Mushroom Cultivation. Together they span every topic tested in major agriculture competitive exams.
Course Structure
| Sub-Course | Topics | Lessons |
|---|---|---|
| Principles of Agronomy | Foundations, agro-climatic zones, India's production scenario, tillage, cropping systems (LER, relay, intercrop), organic farming (NPOP, PGS), precision agriculture | 7 |
| Crop Production | Crop classification, cereals (rice, wheat, maize, barley), millets, pulses, oilseeds, fiber crops, sugarcane, potato, forage/commercial crops, 2 practice tests | 39 |
| Water Management | Irrigation types, scheduling (IW/CPE), water requirement, surface/drip/sprinkler methods, water quality (SAR, EC), drainage, dry-land agriculture, watershed management (PMKSY, IWMP) | 11 |
| Weed Science | Weed classification, crop associations, control methods (biological, chemical), herbicides (2,4-D, glyphosate, pendimethalin, atrazine), IWM, allelopathy, weed indices, 1 practice test | 9 |
| Meteorology | Atmospheric layers, monsoon, solar radiation, temperature (GDD, lapse rate), humidity, wind, clouds, drought, 15 agro-climatic zones, Koppen/Thornthwaite, 1 practice test | 8 |
| Mushroom Cultivation | Basics and species, spawn/substrate science, button mushroom production, casing/IPM, oyster-paddy straw-milky mushrooms, enterprise/post-harvest, 1 practice test | 7 |
Key Numbers to Know
| Topic | Key Figure |
|---|---|
| Paddy — transplanted seed rate | 50–60 kg/ha |
| Wheat seed rate | 100–125 kg/ha |
| Drip irrigation efficiency | 90% |
| Sprinkler irrigation efficiency | 75% |
| Surface irrigation efficiency | 40–50% |
| Agro-climatic zones (Planning Commission) | 15 |
| ICAR agro-ecological sub-zones | 127 |
| Critical period of weed competition — wheat | 30–45 DAS |
| SW monsoon onset — Kerala | ~June 1 |
| DALR | 9.8°C / 1,000 m |
| Button mushroom composting (Phase I) peak temp | 70–80°C |
| Organic farming certification — NPOP body | APEDA |
| LER threshold for intercropping advantage | > 1.0 |
| Urea nitrogen content | 46% |
Who Should Study This Course?
- IBPS AFO — Agronomy comprises ~30% of Professional Knowledge paper
- NABARD Grade A/B — Agriculture paper, Development Assistant cadre
- ICAR JRF/SRF — Agronomy discipline (entire exam)
- FCI AGM (Agriculture) — Crop production and water management
- State PSC Agriculture Officer — All states
- Pre-PG Entrance — IARI, BHU, ANGRAU, TNAU, OUAT, PDKV
Frequently Asked Questions
What does the Agronomy course cover? Six sub-courses: Principles of Agronomy (cropping systems, zones, organic farming), Crop Production (30+ crops with complete agronomic packages), Water Management (irrigation efficiency and watershed schemes), Weed Science (herbicides and weed indices), Meteorology (monsoon, lapse rate, drought, climate zones), and Mushroom Cultivation (species, composting, diseases).
What is the seed rate of paddy and wheat? Paddy — direct seeded: 20–25 kg/ha; transplanted: 50–60 kg/ha. Wheat: 100–125 kg/ha normal sowing, 125–150 kg/ha late sowing. These are among the most frequently tested figures in IBPS AFO.
What is the efficiency of drip vs surface irrigation? Drip: 90%, Sprinkler: 75%, Surface (flood/furrow): 40–50%. The large efficiency gap justifies PMKSY's "More Crop Per Drop" subsidy for micro-irrigation installation across India.
How many agro-climatic zones does India have? 15 agro-climatic zones defined by the Planning Commission of India, further subdivided into 127 agro-ecological sub-zones by ICAR for crop planning at regional level.
Is Weed Science important for IBPS AFO? Yes — Weed Science is a consistent 4–6 question topic in IBPS AFO Professional Knowledge. The most tested items are: herbicide names and classification (2,4-D, glyphosate, pendimethalin, atrazine), Weed Index formula, critical period of competition, and allelopathy examples.
Frequently Asked Questions
What topics does the Agronomy course cover for IBPS AFO?
The Agronomy course covers six sub-courses: (1) Principles of Agronomy — cropping systems, LER, agro-climatic zones, organic farming certification; (2) Crop Production — seed rates, fertilizer schedules, and agronomic packages for 30+ field crops; (3) Water Management — irrigation efficiency, IW/CPE scheduling, watershed programmes; (4) Weed Science — herbicide classification, weed indices, allelopathy; (5) Meteorology — monsoon dates, lapse rates, drought types, Koppen classification; (6) Mushroom Cultivation — species, composting, spawn, diseases.
What is the most important agronomy topic for IBPS AFO?
Crop Production (kharif and rabi crops — seed rate, fertilizer dose, critical irrigation stages) consistently carries the highest weightage in IBPS AFO Professional Knowledge, followed by Water Management (drip/sprinkler efficiency, IW/CPE ratio, PMKSY). Together these two sub-courses contribute 15–20 questions in a typical 60-question agronomy section.
How many agro-climatic zones are there in India?
The Planning Commission of India defined 15 agro-climatic zones. ICAR further divided these into 127 agro-ecological sub-zones for more precise crop planning. The zones range from the Western Himalayan Region (Zone I) to the Islands of Andaman, Nicobar, and Lakshadweep (Zone XV).
What are the major cropping systems of India?
Major cropping systems in India: Rice–Wheat (12 million ha, Indo-Gangetic Plains), Rice–Rice (coastal Andhra, Tamil Nadu, West Bengal), Cotton–Wheat (Punjab, Haryana), Soybean–Wheat (MP, Maharashtra), Maize–Wheat (UP hills, Bihar), Groundnut–Wheat (Gujarat). Cropping intensity of India averages ~145%, with states like Punjab exceeding 190%.
What is the seed rate of paddy and wheat?
Paddy: 20–25 kg/ha for direct seeding, 50–60 kg/ha for transplanting. Wheat: 100–125 kg/ha for normal sowing, increased to 125–150 kg/ha for late sowing. These figures appear as direct MCQ options in virtually every IBPS AFO and NABARD exam.
Which exams test Agronomy most heavily?
Agronomy is tested heavily in IBPS AFO (Professional Knowledge — ~30% of paper), NABARD Grade A/B (Agriculture paper — 15–20 questions), ICAR JRF (Agronomy discipline — entire paper), state PSC Agriculture Officer exams, and Pre-PG entrance exams at IARI, BHU, ANGRAU, TNAU, and OUAT.