Explaining a Soil Profile
Soil scientists study the chemical, physical, biological, and mineral characteristics of soil. Their study of the soil is frequently associated with plant growth. The work of a soil scientist might include the responses of various soil types to fertilizers, soil composition, and drainage patterns.
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Explaining a Soil Profile
www.senecahs.orgA soil profile is usually studied to a depth of 3 to 5 feet. To see the soil profile, soil cores may be taken or holes dug to expose the pro-file.
Understanding Soil Texture and Structure
www.senecahs.orgSilt is the mid-size soil particle. Silt has good water-holding ability and good fertility char-acteristics. It feels like flour when dry and smooth like velvet when moist.
Plant Classification - Seneca High School
www.senecahs.orgCultivar Cultivars have distinguishing characteristics from the other plants in the species, but cultivars do not transfer those characteristics to offspring
Understanding Leaf Anatomy and Morphology
www.senecahs.orgare responsible for most of the photosynthesis in the leaf and are called the palisade mesophyll. Located under the palisade mesophyll are loosely packed cells called the spongy mesophyll.
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Plant Classification - Seneca High School
www.senecahs.orgPlant Divisions Tracheophyta or Spermophyta – Seed Producing plants that bear flowers – Pterodophyta - a class of Tracheophyta that does not produce seeds (Ferns, reproducing with spores) Thallophyta – Fungi and bacteria
Understanding Horticulture
www.senecahs.orgapples, and pears. Small fruits include strawberries, raspberries, and blueberries. Almonds, pecans, and walnuts are popular nut crops. OLERICULTURE The area of horticulture that involves the production of vegetable food crops is olericulture. Olericulture includes the planting, harvesting, storing, processing, and marketing of vegeta-ble crops.
Understanding Soil Texture and Structure
www.senecahs.orgSoil Structure Sand, silt, clay, and organic-matter particles in a soil combine with one another to form larger particles of various shapes and sizes. These larger particles, or clusters, are often referred to as aggregates. The arrangement of the soil particles into aggregates of various sizes and shapes is soil structure.
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Understanding Leaf Anatomy and Morphology
www.senecahs.orgAxillary bud Stipule Stem Petiole Blade FIGURE 1. The major parts of a leaf. Dicots have leaves with veins that connect and branch from each other. Veins in a branch-ing pattern are called netted veins. A leaf with netted veins sometimes has several smaller
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www.osha.govgravel, sand and loamy sand, submerged soil, soil from which water is freely. seeping, and submerged rock that is not stable. Also included in this. classification is material in a sloped, layered system where the layers dip into. the excavation or have a slope of four horizontal to one vertical (4H:1V) or. greater. e. Multi-type soil i.