AgriInfo.in
AgronomyHorticultureBotanySoil SciencePlant PathologyEntomologyExtentionAgril. EngineeringDairy ScienceEconomics
 
categories
 
» Water Management Including Micro Irrigation
» Principles of Agronomy
» Agricultural Meteorology
» Rainfed Agriculture
» Farming Systems & Sustainable Agriculture
» Practicals on Weed Managemet
» Crop Production - Rabi Season
» Weed Management
agriculture information

Current Category » Principles of Agronomy

Manures and Fertilizers

Plant requires food/nutrients/elements for its growth and development which are absorbed through soil. The nutrient supplying sources are manures and fertilizers. Application of manures and fertilizers to the soil is one of the important factors which help in increasing the crop yield and to maintain the soil fertility. N, P and K are the 3 major elements required for the crop growth.

Manure: It is a well decomposed refuse from the stable and barn yards including both animal excreta and straw or other litter. Or

The term manure implies to the any material with the exception of water which when added to the soil makes it productive and promotes plant growth.

Fertilizers: These are industrially manufactured chemicals containing plant nutrients. Or

It is an artificial product containing the plant nutrients which when added to soil makes it productive and promotes plant growth.

Difference between Manures and Fertilizers:
  

Sr No

Characteristics

Manures

Fertilizer

1

Origin

Plant or animal origin

Chemical synthesized or manufactured

2

Nature

Organic in nature

Inorganic in nature

3

Type

Natural product

artificial product

4

Conc. Of nutrients

less concentrated

More concentrated

5

Material

Supply organic matter

Supply inorganic matter

6

Nutrient availability

slowly available

May or may not be readily  available      

7

Nutrients

Supply all the primary nutrients including Micronutrient

Supply specific type of nutrients one, two or three. micro nutrients may or may not be present

8

Effect on Soil Health

Improves physical condition of soil

Do not improve the physical condition of soil

9

Effect on plant growth

No bad effect when applied in large quantities.

Adverse effect on plant whenever there is deficiency or excessive application

Current Category » Principles of Agronomy