This document discusses plant nutrition and the essential elements needed for plant growth. It identifies the macronutrients - carbon, oxygen, hydrogen, nitrogen, phosphorus, potassium, calcium, and sulfur - which plants require in large amounts. Nitrogen is particularly important as it is a component of proteins, nucleic acids and chlorophyll. The document also outlines the micronutrients - chlorine, iron, manganese, boron, zinc, copper, nickel, and molybdenum - which plants need in small amounts. These elements play catalytic roles in enzymatic reactions. The document explains how plants absorb minerals and describes symptoms of nutrient deficiencies. It connects plant nutrition to soil characteristics like texture, composition and fertility.

1. PLANT NUTRITION

2. OBJECTIVES
•IDENTIFYTHE DIFFERENT
ELEMENTS/NUTRIENTS USED BY PLANTTO
SURVIVE.
•EXPLAINTHE IMPORTANCE OFTHESE
ELEMENTS FORTHE PLANT.
•GIVETHE CONNECTION OF SOIL
CHARACTERISTIC IN PLANT NUTRITION.

3. •HOW DO PLANTS GETTHEIR
NUTRITION FROMTHE SOIL
ANDTHE ATMOSPHERE?

4. PLANT NUTRITION
•Plant nutrition is the study of the
chemical elements that are
necessary for plant growth.

5. •Plant nutrition is remarkable to us
because plants require only inorganic
nutrients, and from these they make all
the organic compounds that compose
their bodies.

6. TIMETO REFRESHYOUR MEMORY
•WHAT ARETHOSE MATERIALS
NEEDED BY PLANTTO PHOTOSYNTHESIZE?
•ANSWER: Carbon dioxide, water and light
energy
•What are those elements present in the
materials needed by plant?
•Answer: C, O, H

7. Are these elements (C, O, H) enough for the
plant to grow and survive?
• Answer: No
• Plants need other elements,or minerals, which they obtain from
the environment.
• An element is termed an essential nutrient that a plant cannot
live without it.
• The essential nutrients are divided into macronutrients and
micronutrients, according to their relative concentrations in plant
tissue.

8. What are macronutrients?
•These are essential elements used by plants in
large amount for them to survive.
•Six of these are the major components of organic
compounds forming a plant’s structure: carbon,
oxygen, hydrogen, nitrogen,
phosphorus, and sulfur.
•The other three macronutrients are potassium,
calcium, and magnesium.

9. MACRONUTRIENTS

10. Among the macronutrients given in the previous
slide, what contributes most in plant growth and
crop yields?
•Answer: Nitrogen
•What is the reason behind why nitrogen contributes
most in plant growth and cop yields?
•Answer: Plants require nitrogen as a component of
proteins, nucleic acids, chlorophyll, and other important
organic molecules

11. What are micronutrients?
•These are essential elements used by plants
in small amount for them to survive.
•They are chlorine, iron, manganese, boron,
zinc, copper, nickel, and molybdenum.
•Micronutrients function in plants mainly as
cofactors, nonprotein helpers in enzymatic
reactions.

12. •Iron, for example, is a metallic component of cytochromes,
the proteins in the electron transport chains of chloroplasts
and mitochondria.
• It is because micronutrients generally play catalytic roles
that plants need only tiny quantities.
•The requirement for molybdenum, for instance, is so
modest that there is only one atom of this rare element for
every 60 million atoms of hydrogen in dried plant material.

13. MICRONUTRIENTS

14. MINERAL ABSORPTION
•Proton pumps
• active transport of H+ ions out of cell
• chemiosmosis
• H+ gradient
• creates membrane
potential
• difference in charge
• drives cation uptake
• creates gradient
• cotransport of other
solutes against their
gradient

15. NUTRIENT DEFICIENCY
•Lack of essential nutrients
•exhibit specific symptoms
•dependent on
function of nutrient
•dependent on
solubility of nutrient
HYDROPONIC CULTURE

16. Magnesium deficiency
• Symptoms
• chlorosis = yellowing of leaves
• Why?What is magnesium’s function?

17.  Plants are dependent on soil
quality
A.Texture / structure
A.1 relative amounts of
various sizes of soil particles
B. Composition
B.1. organic & inorganic
chemical components
B.2. fertility
Role of Soil