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The Nature of:. Recognizing the Importance of Plant and Soil Science. Objectives. Identify the v arious roles of plants in everyday l ife ; Identify the various segments of plant and soil science ; and Identify important types of plants and their uses . Roles of Plants in E veryday Life.

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The Nature of:


Recognizing the Importance of Plant and Soil Science


Objectives

  • Identify the various roles of plants in everyday life;

  • Identify the various segments of plant and soil science; and

  • Identify important types of plants and their uses.


Roles of Plants in Everyday Life

  • Why do we need plants?

    • Food

    • Food Chain

    • Oxygen

  • Let’s list the most important uses of plants


Roles of Plants in Everyday Life

  • Edible Plants

    • Whole plants

    • Portions of plants

  • The most important – can you guess?

    • Grains

      • Wheat, rice, corn, barley

  • About 88% of the world’s total caloric intake comes from plant food sources

  • About 80% of the world’s protein intake comes from plant food sources

  • Some plants are used to make beverages


Roles of Plants in Everyday Life

  • Industrial Uses

    • Wood

      • What is it use for?

    • Fiber

      • What is it use for?

    • Chemicals

      • What is it use for?

    • Rubber

      • What is it use for?


Roles of Plants in Everyday Life

  • Medicinal uses

    • Plants have played a very important role in developing medicines

  • Scientists are still studying plants to understand the chemical compounds found within them

  • Some believe that some of our most deadly diseases will be cured by an undiscovered plant compound


Roles of Plants in Everyday Life

  • Oils

    • Many plants store oils as food in the seed or plant itself

  • Some oils are used to make or produce food for humans

  • Others are used in industry

  • What are some oil producing plants?


Segments of Plant and Soil Science

  • What makes up the top layer of the earth’s crust?

    • Soil

  • What is soil science?

    • Study of structure, composition, fertility, use, and protection of soil.

  • What is plant science?

    • Study of structure, functions, growth, and protection of plants

    • Can be divided into 3 categories


Segments of Plant and Soil Science

  • 3 categories of Plant Science

    • Field Crops

    • Forestry

    • Horticulture Crops


Segments of Plant and Soil Science

  • Field Crops

    • Plants (other than fruits and veggies) grown in large fields and are used for agricultural purposes

      • oil, fiber, grain, etc…

    • Corn and wheat are often grown for their seed but other parts of the plant can be used

    • Agronomyspecializes in field crops and their relations with the soil


Segments of Plant and Soil Science

  • Forestry

    • Science of growing trees and producing wood products

      • What are some wood products?

    • Tree Farms are cultured forests that are carefully planned


Segments of Plant and Soil Science

  • Horticulture Crops

    • Grown for food, comfort, and beauty

    • Two major areas of horticulture are

      • Ornamental Horticulture

      • Food Crop Horticulture


Segments of Plant and Soil Science

  • Ornamental Horticulture

    • Plants used for their beauty

    • Floriculture

      • Use of plants for the flowers and foliage

        • Foliage is the stems and leaves


Segments of Plant and Soil Science

  • Ornamental Horticulture

    • Landscape Horticulture

      • Growing and using plants to make outdoor environment more appealing

      • Shrubs, flowering plants, lawn areas


Segments of Plant and Soil Science

  • Ornamental Horticulture

    • Interiorscaping

      • Plants inside buildings to create an attractive indoor environment


Segments of Plant and Soil Science

  • Food Crop Horticulture

    • Growing plants for food

    • Includes orchards and gardens


Food Crop Horticulture

  • Food Crop Horticulture

    • Olericulture

      • Science of producing vegetable crops

    • Pomology

      • Science of producing fruit and nuts


Today’s Assignment(Need a separate sheet of paper)

  • For each area of plant science, list 5 crops that are grown.

    • Field crops, Floriculture, Landscape, Interiorscape, Olericulture, Pomology, Forestry.

  • Circle the plant in each section that you would be most interested in learning about.

  • Choose 2 areas of plant science that interest you and write a paragraph about each one explaining why you are interested, what kind of crops do you want to grow, etc…


Types of Plants and Their Uses

  • Very few wild plants play an important role in everyday life

  • Plant Domestication is removing plants from their native environment and growing them under controlled conditions


Types of Plants and Their Uses

  • Seven categories of important domesticated plants in North America

    • They are all field and horticulture crops


Types of Plants and Their Uses

  • Grain Crops

    • Plants grown for an edible seed

      • Does not include nuts

    • Cereal Grains is the seed of grass-type plants grown for food and animal feed


Types of Plants and Their Uses

  • Sugar Crops

    • Source of sucrose

      • Sucrose is a carbohydrate that provides energy

    • Major sugar crops

      • Sugar beets

      • Sugar cane

    • Can you think of other sources of sugar?


Types of Plants and Their Uses

  • Oil Crops

    • Grown for the vegetable oil in their seeds and fruits

    • Major oil crops for the U.S. are:

      • Soybeans

      • Cotton

      • Canola

      • Corn


Types of Plants and Their Uses

  • Fiber Crops

    • Grown for the fiber harvested from their fruit, stems, or leaves

    • What are fibers?

      • Threadlike structures used to manufacture cloth, paper, and other things

    • What is the major fiber crop?

      • Cotton

      • Others include flax, hemp, jute, and ramie


Types of Plants and Their Uses

  • Vegetable, Fruit, and Nut Crops

    • Primarily grown for food


Types of Plants and Their Uses

  • Forage Crops

    • Forage: leaves and stems of plants used for animal feed

    • Primarily grasses or legumes

      • Grasses are non-woody plants that have parallel veins in their leaves

      • Legumes are broad-leaf plants that have the potential to fix nitrogen from air in the soil

    • Forages can be grazed or harvested and stored for later feeding


Types of Plants and Their Uses

  • Ornamental and Turf Crops

    • Ornamental Crops: flowers, shrubs, vines, and other plants grown for beauty and appeal

    • Turf Crops: provide a pleasing look and protect the soil

      • Usually grasses

      • What are they protecting the soil from?


Types of Plants and Their Uses

  • Other crops

    • These just don’t fit in any other group

    • Beverages

      • Coffee, tea, use your imagination

      • Herbs, spices, or medicine


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