Fertiliser application

This lesson introduces students to the different types of fertilizers, including organic, inorganic, and slow-release options, and explores how to determine the correct application rates based on crop needs, soil conditions, and environmental factors. Through discussions, practical applications, and case studies, students learn how proper fertilization practices enhance plant growth and minimize environmental impact, especially in regions like North Queensland with heavy rainfall.

Learning Objectives:

Discuss the uses of organic, inorganic, and slow-release fertilizers.
Interpret soil test results to identify nutrient deficiencies.
Explain how crop type, soil conditions, and environmental factors affect fertilizer selection and application rates.
Identify appropriate fertilizer types and rates for specific crops.

Lesson Highlights:

Starter Activity: Students discuss the effects of over-fertilization, differences in crop nutrient needs, and strategies used in North Queensland to prevent fertilizer runoff.
Types of Fertilizers: Overview of organic, inorganic, and slow-release fertilizers, focusing on benefits and specific examples like compost, urea, and polymer-coated fertilizers.
Application Methods: Discussion on broadcasting, banding, foliar feeding, and fertigation, and how these methods suit different crop types and soil conditions.
Environmental Considerations: Exploration of split applications, slow-release options, and crop rotation to prevent nutrient leaching, particularly in tropical climates.
Practical Activity with Soil Probes: Students practice using soil probes to assess site suitability for crop planting based on pH, salinity, and nutrient levels.
Complete Answers and Timed Activities: All answers are provided to facilitate discussion, with timers for smooth lesson pacing.

Included Materials:

PowerPoint Presentation with fertilizer types and application methods
Worksheet for interpreting soil test results and choosing fertilizers
Answer key for all discussion points and practical exercises
Reflection prompts for student self-assessment
This lesson package equips students with practical skills for effective fertilizer application, helping them understand how to balance plant growth needs with environmental stewardship in agriculture.