Northeast Region Certified Crop Adviser (NRCCA) Study Resources

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In This Section

• Introduction
• PO 7 Variables in supplying nutrients from the soil
• PO 8 Nutrient transformations and interactions
• PO 9 Mass flow, diffusion, root interception
• PO 10 Affects of CEC
• PO 11 Mobile and immobile macronutrients
• PO 12 Soil characteristics and nutrient uptake
• PO 13 Nitrogen cycle
• PO 14 Symbiotic nitrogen fixation
• Summary

Competency Area 1: Basic Concepts of Soil Fertility

Summary

• Minerals are provided to plants through soil content, plant residues, organic matter, and applied nutrients.  Soil characteristics such as texture, pH, and temperature affect the form and availability of nutrients.
• The nitrogen cycle is an example of how different soil conditions and processes change the form of N, which may increase or decrease the availability of the N to plants, and may contribute to environmental loss.