Please enable JavaScript.
Coggle requires JavaScript to display documents.
Soil Science - Modules 1-8 - Coggle Diagram
Soil Science - Modules 1-8
Geochemical Cycles - Module 8
Nitrogen Cycles
Calcuim cycles
Macronutrient - Base cation affected by soil pH
Losses from leaching, crop removal, soil erosion
Iron Cycle
Magnesium cycle
Micronutrient - 20% of nutrient found in chrolophyll system
Lack of Green in leaves can indicate deficiency
Leaching caused by pH conditons. Ideal exchange above pH 6
Silicon Cycles
One of the 3 most abundant elements on earth
Neutral - no charge
Uptake by plants - Silicic Acid
forms Phytoliths
Affects dry weight of plant growth (increases) when added to soil. Only works in certain soil types
assists with Iron toxicity or heavy metal toxicity
Studies around silicon increasing access to Phosporus
Oxydisation and Reduction (REDOX)
Frees up elements
Iron
Manganese
copper
nickle
Flooding main source of REDOX - pushes oxygen out of soil making in anerobic
Soil Classification - week 3
Soils and Nutrients
Parent Materials
Measuring Soil Properties - Module 4
Acids and Bases - Module 5
Soil Biological Properties - Module 6
Soil Biology - Responses to Land Use Changes - Module 7