1. Introduction to
Agronomy
ANSHUL PHAUGAT

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• Etymology of Agronomy
• Definition
• Principle Of Agronomy
• Relation of agronomy to other sciences
Content and topics included
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• Greek origin – ‘agros’ meaning: field
- ‘nomos’ meaning: management
• Pietro de'Crescenzi is the father of agronomy.
• It is both a humanitarian career and a scientific one.
• Producing and using plants in agriculture for food, fuel, fiber, and land
restoration.
Etymology and meaning
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1. An agricultural science deals with principles and practices of crop production
and field management.
2. Agronomy is branch of agricultural science, which deals with principles, &
practices of soil, water & crop management.
3. It is branch of agricultural science that deals with methods which provide
favorable environment to the crop for higher productively
Definition Of Agronomy
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Easy way to learn the definition:
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A G R YMONO
Activities on
Ground for
Raising
Outspread use of
Noble crops for
Obtaining
Massive
Yield

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1. Resource utilization: Appropriate and efficient utilization of natural resources, capital and
labour are very necessary for ever increasing crop production.
2. High productivity under all conditions: There are many agro-climatic zones and agro-
ecological regions and to sustain high productivity of the crop under all zones is very
important.
3. Selection of the right variety: A right variety of the crop should be selected taking care of
different irrigated and rainfed conditions, soil fertility and seasons.
4. Proper field management: Proper field management by tillage, timely irrigation, proper
drainage and controlling land degradations is very important.
5. Perfect crop system: That cropping system should be designed which has higher yields, high
resource use efficiency, more net return, and remain sustainable.
Principle Of Agronomy
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6. Timely application of fertilizers: Timely application of nutrients to the crop keeping in mind
the improvement of soil fertility and productivity. Application of organic manure and
biofertilizers should be encouraged.
7. Right plant density: Quality seed material should be selected and optimum plant density
per unit area should be maintained for optimum production.
8. Efficient use of water: When to irrigate, how much to irrigates and how to irrigate the
crops, conservation of rain water and increasing water use efficiency.
9. Timely adoption of plant protection measures: Proper plant protection methods should be
adopted for control of weeds, harmful insects, and diseases.
10. A suitable method of harvesting: Suitable method of harvesting the crop to reduce
harvesting loss and prepare the land for next crop.
11. Adoption of post-harvest techniques: Adoption of required post-harvest techniques like
cleaning, drying, storage, value addition etc.
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• The Soil Science helps the agronomist to thoroughly understand the soil physical, chemical
and biological properties to effect modification of the soil environment.
• The Agricultural Chemistry help the agronomist to understand the chemical composition and
changes involved in the production, protection, and use of crops and livestock.
• The crop physiology helps to understand the basic life process of crops to understand
functioning of each parts of plant to determine their input requirement like nutrients etc.
• The plant ecology helps us to understand the associated environment in which the crops
grown like the influence of weather (Temperature, Rainfall etc.).
• The biochemistry shows the way in which biochemical process takes place in crops which
helps to understand critical requirements to favorably activate this process.
• The economics paves the way for profit and loss analysis in farming
Relation of agronomy to other sciences
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9. Thank You
Anshul Phaugat
engrossingagriculture@gmail.com