Chapter 37

Chapter 37 - Chapter 37 Plant Nutrition 1) Plants require...

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Chapter 37 Plant Nutrition 1) Plants require certain chemical elements to complete their life cycle a) Plants derive most of their organic mass (biomass) from the CO2 in the air b) Also need soil nutrients like water and minerals 2) Essential Plant Elements a) Essential Element: element required by a plant to complete its life cycle b) Macronutrients: required by plants in relatively large amounts c) Micronutrients: elements that are needed in only small amounts i) Function mainly as cofactors in chemical reactions 3) Soil quality is a major determinant of plant distribution and growth a) In addition to climate, texture and composition of soil are major factors determining the distribution of plants 4) Texture and Composition of Soils a) Soil is made up of particles derived from the breakdown of rocks (minerals) along with organic material (humus) b) Texture: the relative amounts of various sizes of soils particles c) Composition: relative amounts of inorganic and organic components 5) Soil Horizons a) Soil horizons are visible in vertical profile
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This note was uploaded on 02/04/2009 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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Chapter 37 - Chapter 37 Plant Nutrition 1) Plants require...

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