Ch 37- Plant Nutrition-Outline

Ch 37- Plant Nutrition-Outline - Chapter 37 Plant nutrition...

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Chapter 37
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Plant nutrition also depend on soil nutrients, such as water and minerals require certain chemical elements to complete their life cycle Every organism continually exchanges energy & materials with its environment plants derive most of organic mass from CO 2 in the air root & shoot systems of a vascular plant ensure extensive networking w/ both sources & reservoirs of inorganic nutrients
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Macronutrients and Micronutrients in plants <50 chemical elements identified among inorganic substances only 17 of these are essential to plants essential nutrient is a chemical element required for plant to complete its life cycle Hydroponic cultures All nutrients except K + All nutrients
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Essential nutrients Nine of the essential elements are called macronutrients Required in large amounts
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Essential nutrients Remaining eight are called micronutrients If concentrations are too high, damage is possible to the plants
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Symptoms of Mineral Deficiency deficiency of a mobile nutrient usually affects older organs more than young ones deficiency of a less mobile nutrient usually affects younger organs more than older ones Most common defiencies: Healthy Phosphate Potassium Nitrogen
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Soil quality is a major determinant of plant distribution and growth along w/ climate, soil texture & composition are major factors determining whether a plant can grow well in a certain location The Soil topsoil horizons often visible in vertical profile Texture soil’s general structure Composition organic and inorganic chemical components Humus remains of partially decayed organic material Topsoil other vertical layers
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Ch 37- Plant Nutrition-Outline - Chapter 37 Plant nutrition...

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