"Soil" Essays and Research Papers

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    What is Salinity? Salinity – Salinity can be defined as the condition where the quantity of salt causes problems in the soil and impacts in the landscape. The term salinity can be classified in numerous diverse ways: irrigation salinity‚ dryland salinity‚ urban salinity‚ river salinity and industrial salinity. These contrasting types of salinity are arranged to how and where the salt has been located and what the effects are. An example of salinity is the amount of salt that is measured in a fish

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    The study presented in this thesis form a relationship between soil chemical properties throughout the years within Giant Miscanthus soil. Miscanthus is a perennial‚ rhizomatous‚ giant grass that was originated from East Asia and now distributed worldwide. This subtropical plant has C4 photosynthetic pathway and can be grown in warm seasonal weather. These perennial rhizomatous grasses are promising energy crops due to their high productivity‚ low nutrient requirements‚ ecosystem services and great

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    -How plants get liquid and minerals- Flowers absorb liquid through their roots‚ which are attached to xylem vessels. Xylem vessels are tubes that can expand through several feet of tissue and be .7mm in diameter. Their walls are thickened with cellulose deposits. Xylem bring water up to the leaves and petals of the plant. Even without contact with the roots‚ the xylem can still absorb water. Because of this‚ a cut flower usually doesn’t die for a couple days (as long as it is placed in water of

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    tomato plant to grow taller in a short amount of time. Materials: 1. 2 tomato plants of the same type 2. 2 pots 3. Soil 4. Sunlight 5. Water 6. Organic fertilizer 7. Journal and camera (for observations and documentation) Procedure: 1. Put 2 tomato plants of the same kind in separate pots. 2. Grow them both in the same appropriate manner; subject both to sunlight‚ fertile soil‚ and daily watering. 3. Subject 1 of the 2 plants with organic fertilizer. 4. Label both plants as “Plant A” and

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    Metalochlor

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    Temperature‚ moisture‚ soil type‚ microbial activity‚ oxygen concentration‚ sunlight‚ nitrification‚ and the amount of leaching all have an effect on the breakdown of pesticides in the soil (Extoxnet‚ 2000a). Rainfall patterns and the timing/intensity of irrigation in relation to high rainfall intensities will also influence herbicide movement in or from soil. Metolachlor is considered to be moderately persistent in different soil types (U.S. EPA‚ 1997)‚ and has an average field dissipation half-life

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    Science Fair

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    discovered in the 18th century that plants absorb mineral nutrients as inorganic ions in water. Normally soil is thought to be required for plant growth‚ but in actuality‚ soil is not needed at all. When the mineral nutrients in the soil dissolve in water‚ plant roots have the ability to absorb them. When the required mineral nutrients are introduced into a plant’s water supply artificially‚ soil is no longer required for the plant to thrive. Almost any terrestrial plant will grow with hydroponics

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    intensive day

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    Study Questions:   1.) Why is sub-soiling needed in soils with hard pans? Sub-soiling is essential especially to hard pan layer because it will help the roots penetrate deep and be able to explore and obtain water and nutrients from larger volume of soil. Hard span obstructs root’s downward proliferation and restricts root growth of crops (of crops that have vertical root growth). With sub-soiling‚ the needed soil depth‚ at least 80cm will be met . With sub-soiling‚ we can break hard pan without

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    earthworm casting is a better planting medium than garden soil. Five set-ups were prepared including one control‚ with the same amount of water given and exposure to sunlight and temperature. However‚ they differ in the proportion of earthworm casting in every pot. The earthworm casting and garden soil were weighed and then thoroughly mixed (according to the proportion of earthworm castings‚ 0%‚ 25%‚ 50%‚ 75% & 100%). Each mixture of soil had a total of two kilograms. The mixtures were placed in

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    activities that range from Shallow to Deep foundations. Refer to photos in appendix 1 for further clarification. Soil Investigation: Prior to any foundation design or excavation work to take place‚ soil Geotechnical Investigation using process is carried out by a competent contractor‚ this to explore the surface and subsurface of each foundation. A CME-45B Truck Mounted Auger Drill is used retrieve soil samples‚ all samples are tested in an off-site laboratory. The truck operators are usually exposed to various

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    Environmental Lab Report

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    HAEF Psychico College ENVIRONMENTAL SYSTEMS & SOCIETIES LAB REPORT (SL) TITLE OF LAB : Investigation of the impact of overpopulation in biodiversity Objective of the investigation: To investigate the impact of climate change in biodiversity Research Question: How does the temperature change ( each pot will be held in 35°C‚  20°C‚  10°C‚  0°C‚  -10°C respectively) influence the growth of lettuce plants calculated from the measurement of the weight of each plant every 2 days

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