Download Chapter 12

Chapter 12
Plant Nutrition
T12-1
Soil Science & Management, 4E
Objectives
• Discuss nitrogen nutrition and the nitrogen
cycle
• Discuss phosphorus nutrition
• Discuss potassium nutrition
• Answer questions about the secondary
nutrients
• Answer questions about trace elements
T12-2
Soil Science & Management, 4E
Terms to Know
•
•
•
•
•
•
T12-3
Ammonia volatilization
Ammonification
Chelates
Chlorosis
Enzymes
Lodge
Soil Science & Management, 4E
Nitrogen
• The nitrogen cycle
Figure 12-2
T12-4
Soil Science & Management, 4E
Nitrogen
Figure 12-4
T12-5
Soil Science & Management, 4E
Nitrogen
• Forms of nitrogen in the soil
Figure 12-5
T12-6
Soil Science & Management, 4E
Nitrogen
• Forms of nitrogen in the soil
• Nitrogen deficiency
Figure 12-6
T12-7
Soil Science & Management, 4E
Phosphorus
• Forms of phosphorus in the soil
Figure 12-8
T12-8
Soil Science & Management, 4E
Phosphorus
• Movement and uptake in the soil
• Deficiency
T12-9
Soil Science & Management, 4E
Potassium
• Forms of potassium in the soil
Figure 12-11
T12-10
Soil Science & Management, 4E
Potassium
• Movement in the soil
• Deficiencies
Figure 12-12
T12-11
Soil Science & Management, 4E
Secondary Nutrients
• Calcium
Figure 12-13
T12-12
Soil Science & Management, 4E
Secondary Nutrients
• Magnesium
Figure 12-15
T12-13
Soil Science & Management, 4E
Secondary Nutrients
• Sulfur
Figure 12-16
T12-14
Soil Science & Management, 4E
Trace Elements
Figure 12-17
T12-15
Soil Science & Management, 4E
Trace Elements
•
•
•
•
•
•
•
T12-16
Iron
Manganese
Zinc
Copper
Boron
Molybdenum
Chlorine, nickel, and others
Soil Science & Management, 4E
Summary
•
•
•
•
T12-17
Nutrients perform important tasks
Understand behavior in soil
Solubility and mobility important
Each present in right amount
Soil Science & Management, 4E