AGRI 32 - EXER 6

Any material, organic or inorganic, which is applied to the soil and provided to the plant to supply nutrient needed for optimum plant growth and development

types of fertilizers based on source

types of fertilizers based on chemical composition

- Substances containing carbon

-Originates mostly from living organisms

- Improves physical, chemical, and biological properties of soil

- Essential to sustain long-term land productivity

the process of managing the amount, source, timing and

method of nutrient application.

Each nutrient undergoes changes in form as it moves from one “source” (physical environment) to another “recipient” (living organisms) and back to the physical environment.

Soil microflora and fauna act upon

senescing plant parts such as leaves and

fallen branches through a process called

application of solution during transplanting at a ratio of 1:2:1 or 1:1:2

spraying of solution on the foliage of plants

application of soluble fertilizers through irrigation water