ACCT 2220 Study Guide - Final Guide: Soil Organic Matter, Nitrogen Fixation, Clay Minerals
14 Sep 2016
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Document Summary
The major plant nutrients, n, p and k play different roles in plant growth. Nitrogen is important in chlorophyll formation, photosynthetic production of carbohydrates and synthesis of proteins. Phosphorus is important in energy transfer within cellular tissue, the composition of chromosomes rna, dna and root development. Potassium is important in synthesis of proteins, carbohydrates, and chlorophyll and translocation and storage of carbohydrates. Soil plays an important role in this nutrient budget as it acts as a reservoir of nutrients. The clay and organic matter fractions of the soil are particularly important for nutrient supply. They determine the quantity or reserve of nutrients in the soil and the rate of release in forms which may be used by plants. Soil ph is also an important factor in determining the availability of many plant nutrients. Nitrogen moves in a cycle with only a very small portion of the earth"s nitrogen existing in forms that can be used by plants (i. e. , nh4.
