Here at Toppersexam.com , you can practice a complete set of Mock Test Series along with a free ASRB ARS Soil Science mock test designed by our expert faculty Team.
Asrb Ars (soil Science) 2026 Free Mock Test Practice
Free Important Questions
Asrb Ars (soil Science) 2026 Exam Free Online Question Bank
Combo Offers
ASRB ARS Soil Science Combo Packages
We Launches Combo Offers ! with Heavy Discount and Cost Saving Prices. Combo Packages includes - Online Mock Test Series + Important Questions or MCQs + Previous Year Papers with Answer.
Combo Package
ASRB ARS Soil Science
Combo - 1 Preliminary Exam (English)
1. Online Mock Test Series in English = 11 Tests.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹201₹231
Combo Package
ASRB ARS Soil Science
Combo - 2 Preliminary Exam (English)
1. Online Mock Test Series in English = 11 Tests.
2. Question Bank - 1700 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1700 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
₹651₹721
Combo Package
ASRB ARS Soil Science
Combo - 3 Preliminary Exam (English)
1. Online Mock Test Series in English = 11 Tests.
2. Question Bank - 1700 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook ASRB ARS Soil Science (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1700 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook ASRB ARS Soil Science (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
₹801₹921
ASRB ARS (Soil Science) Syllabus 2026, Exam Pattern
ASRB ARS (Soil Science) Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about ASRB has published notification 2026 for the recruitment of Agriculture Research Service (Soil Science) vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
ASRB ARS Notification 2026 - Overview
| Organization Name | Agricultural Scientists Recruitment Board (ASRB) |
| Exam Name | Agricultural Research Service (ARS) Examination 2026 |
| Post Name | Soil Science |
| No.of Posts | Notified Soon |
| Mains Exam Date 2026 | Notified Soon |
| Mode of Application | Online |
| Selection Process | Prelims, Mains and Interview |
| Category | Syllabus and Exam Pattern |
| Official Website | www.asrb.org.in |
ASRB ARS (Soil Science) Syllabus 2026
Soil Science :
Unit 1: Soil genesis, classification, survey and land use planning :
Concept of land, soil and soil science. Composition of earth crust and its relationship with soils; Rocks, minerals and other soil forming materials; Weathering of rocks and minerals; Factors of soil formation; Pedogenic processes and their relationships with soil properties; Soil development; Pedon, polypedon, soil profile, horizons and their nomenclature. Soil Taxonomy - epipedons, diagnostic subsurface horizons and other diagnostic characteristics, soil moisture and temperature regimes, categories and criteria for soil classification systems. Soil mineralogy and clay mineralsclassification, structure, compostion, properties, genesis, transformation and identification techniques, role in plant nutrition, interaction with humus, pesticide and heavy metals. Interpretation of soil survey data for land capability and crop suitability classifications, Macromorphological study of soils. Land evaluation and land use type concept and application. Application and use of global positioning system for soil survey. Soil survey- types, techniques. Soil series- characterization and procedure for establishing soil series, benchmark soils, major soils of India and soil correlations. Study of base maps: cadastral maps, toposheets, aerial photographs and satellite imageries. Use of geographical information system for preparing thematic maps.
Unit 2: Soil Physics :
Soil physical constraints affecting crop production. Soil texture - textural classes. Soil structure -classification, soil aggregation and significance, soil consistency, soil crusting, bulk density and particle density of soils and porosity, their significance and manipulation. Soil water- retention and potentials. Soil moisture constants. Movement of soil water - infiltration, percolation, permeability, drainage and methods of determination of soil moisture. Darcy's law. Thermal properties of soils, soil temperature, Soil air- composition, gaseous exchange, influence of soil temperature and air on plant growth. Soil erosion by water, wind - types, effects, mechanics. Rain erosivity and soil erodibility. Runoff - methods of measurement, factors and management, runoff farming. Soil conservation measures, soil conservation in special problem areas Characterization and evaluation of soil and land quality indicators; Causes of land degradation; Management of soil physical properties for prevention /restoration of land degradation; Identification, monitoring and management of waste lands; Land use- land cover mapping and land use planning using conventional and remote sensing techniques; Concept of watershed - its characterization and management. Remote sensing and geographic information system in precision farming.
Unit 3: Soil Chemistry :
Chemical composition of soil; Soil colloids - structure, composition, constitution of clay minerals, amorphous clays and other non-crystalline silicate minerals, oxide and hydroxide minerals; crystallography, space lattice, coordination theory; solubility and ionic products: computation and mineral formation, Charge development on clays and organic matter; pH- charge relations; Buffer capacity of soils. Soil organic matter fractions, clay organic interaction. Elements of equilibrium thermodynamics, chemical equilibria, electrochemistry and chemical kinetics. Inorganic and organic colloids- surface charge characteristics, diffuse double layer theories, zeta potential stability, coagulation/ flocculation, peptization, electrometric and sorption properties of soil colloid. Soil organic matter- fractionation, clay-organic interactions. Cation exchange- theories, adsorption isotherms, Donnan-membrane equilibrium concept, clay-membrane electrodes and ionic activity measurement, thermodynamics, anion and ligand exchange- inner sphere and outer-sphere surface complex formation, fixation of oxyanions, hysteresis, sorptiondesorption of oxy-anions and anions. Nitrogen, potassium, phosphate and ammonium fixation in soils and management aspects. Quantity/intensity relationship and nutrient availability. Chemistry of acid, salt-affected soil, Chemistry and electrochemistry of submerged soils and management aspects, geochemistry of micronutrients,. Basics of radioisotopes-radioactivity, monitoring radiation and isotopic techniques.
Unit 4: Soil Fertility :
Essential elements in plant nutrition; Nutrient cycles in soil; Transformation and transport of nutrients (Macro and micro nutrients) in soil; Manures and fertilizers; Fate and reactions of fertilizers in soils; Chemistry of production of different fertilizers; Slow release fertilizers and nitrification retarders; Quality control of fertilizers. Soil fertility evaluation - soil testing, plant and tissue tests and biological methods; Common soil test methods for fertilizer recommendation; Soil test-crop response correlations; Integrated nutrient management; Use of isotopic tracers in soil research; Nature, properties and development of acid, acid sulphate, saline and alkali and their management; Lime and gypsum requirements of soils, lime potential; Irrigation water quality - EC, SAR, RSC and specifications. Fertility status of major soil groups of India. Concept and application of soil health and soil quality. Pollution: types, causes, methods of measurement, standards and management. Heavy metal toxicity and soil pollution; Chemical and bio-remediation of contaminated soils; Soil factors in emission of greenhouse gases; Carbon sequestration in mitigating greenhouse effect; Radio-active contamination of soil.
Unit 5: Soil Microbiology :
Soil biota, soil microbial ecology, types of organisms. Soil microbial biomass, microbial interactions, unculturable soil biota. Microbiology and biochemistry of root-soil interface Phyllosphere. Soil enzymes, origin n, activities and importance. Soil characteristics influencing growth and activity of microflora. Microbial transformations of N, P, K, S, Fe and Zn in soil. Biochemical composition and biodegradation of soil organic matter and crop residues. Humus formation. Cycles of important organic nutrients, microbial transformations of pollutants in soil. Soil genomics; xenobiotics; Biodegradation of pesticides, organic wastes and their use for production of biogas and manures. Biofertilizers - definition, classification, specifications, method of production and role in crop production.
Unit 6: Analytical chemistry in soil :
Concept of chemical analysis, Solution reactions, titrimetric analysis, concept of standard solution, Indicators: theory and applications. Methods of soil analysis - particle size distribution, bulk and Particle density, moisture constants, Modern methods of soil, plant and fertilizer analysis Flame photometry and inductively coupled plasma optical emission spectroscopy; Spectrophotometry - visible, ultra-violet and infrared; Atomic absorption spectrophotometry; Potentiometry and conductimetry; X-ray diffractometry; Mass spectrometry; Geiger Muller counter, solid and liquids scintillation counters.
Unit 7: Statistics :
Experimental designs for pot culture and field experiments; Analysis of Variance (ANOVA) and Covariance; Statistical measures of central tendency and dispersion; Correlation and regression; Tests of significance - t and F' tests; Computer use in soil research.
ASRB ARS (Soil Science) Exam Pattern 2026
Preliminary Exam
Duration : 120 Minutes
Negative Marking : 0.33
Mains Exam (Descriptive)
Mains Exam Date 2026 : Notified Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
Duration : 120 Minutes
Negative Marking : 0.33
| S.No | Subject | No.of Question | Marks |
| 1. | Soil Science | 150 | 150 |
| Total | 150 | 150 |
Mains Exam (Descriptive)
| S.No | Subject | Marks | Duration |
| 1. | Soil Science | 200 | 03 Hour |
| Total | 200 | 03 Hour |
Mains Exam Date 2026 : Notified Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
FAQs
Asrb Ars (soil Science) 2026 Exam Syllabus Frequently Asked Questions (FAQ's)
Here at Toppersexam.com , you can practice a complete set of Imporatnt Questions (MCQ) along with a Free ASRB ARS Soil Science MCQ designed by our expert faculty.
In this article Page, we have provided the required syllabus of the ASRB ARS Soil Science exam.
Being familiar with ASRB ARS Soil Science Exam Pattern will help you understand the types of questions asked, difficulty level of the exam and important topics that require your keen attention. It will also acquaint you with the marking scheme and time allotted to each Topics.
ASRB ARS Soil Science syllabus pdf download option is available here which will help you to get the PDF saved in your device that you can access anytime. It consists of a complete syllabus of ASRB ARS Soil Science which you can refer to while preparing for the exams.
ASRB ARS Soil Science exam is not tough but it depends on your preparation. The candidates find the Subject not challenging. The dedicated preparation in the right direction will undoubtedly take you towards the goal.
The candidates must be well versed and acquainted with the syllabus and the exam pattern. Select the areas where improvement is required and schedule your preparation accordingly. To ace this exam, the applicants ought to maintain speed with high accuracy. Practicing previous years question papers will help you understand the exam pattern and the level of difficulty of the exam. You need to hone your strengths and improve upon your weaknesses. Toppersexam.com will aid you through the preparation and drive you to success. At Toppersexam.com, you can practice a complete set of test series along with a free ASRB ARS Soil Science mock test designed by our expert faculty.
The syllabus of ASRB ARS Soil Science Exam includes all topics that are important for the exam and are necessary for thorough preparation. Toppersexam provides a complete and updated syllabus with a detailed topic-wise breakdown.
You can download the complete ASRB ARS Soil Science Exam syllabus PDF from toppersexam.com. The PDF is available free and includes a detailed list of topics, section-wise subjects, and weightage for better exam preparation.
Yes, ASRB ARS Soil Science Exam has a topic-wise syllabus that includes all relevant subtopics. Toppersexam provides the detailed breakdown, helping candidates focus on high-weightage areas and avoid missing important sections.
Toppersexam ensures that the ASRB ARS Soil Science syllabus is updated for 2026. The latest syllabus reflects current exam trends, question patterns, and updated topics as per official notifications.
The ASRB ARS Soil Science Exam pattern includes details like the number of sections, total questions, marks distribution, and exam duration. Toppersexam provides a comprehensive guide on exam format, marking scheme, and question types.
Yes, the majority of questions in ASRB ARS Soil Science Exam are MCQs. Toppersexam provides practice MCQs with answers to help candidates understand the question pattern and improve accuracy.
Yes, questions are divided section-wise. Toppersexam provides a clear guide on how many questions are asked per section and their difficulty level for effective preparation.
Yes, Toppersexam offers online mock tests that strictly follow the ASRB ARS Soil Science Exam pattern. These mocks help candidates practice time management and get real-exam experience.
Yes, exam patterns can change over time. Toppersexam provides updated information on the latest exam pattern, question types, and section-wise changes.
Understanding the exam pattern is crucial for time management, question prioritization, and strategy planning. Toppersexam guides candidates on how to use the pattern effectively to maximize scores.
Start by dividing the syllabus into sections and prioritizing high-weightage topics. Toppersexam provides a preparation strategy, along with topic-wise tips and sample questions to make syllabus analysis easier.
Yes, focusing on high-weightage topics improves efficiency. Toppersexam highlights important topics, helping candidates prioritize sections for better performance.
Toppersexam provides a free downloadable PDF that includes both the syllabus and detailed exam pattern. This helps candidates study offline and revise efficiently.