FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Above 8 PH
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Near 7 PH
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Below 6 PH
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None of the above
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Detailed explanation-1: -Soils can be classified according to their pH value: 6.5 to 7.5-neutral. over 7.5-alkaline. less than 6.5-acidic, and soils with pH less than 5.5 are considered strongly acidic.
Detailed explanation-2: -A soil pH value above 8.5 indicates the presence of sodium. High-sodium soils may reach pH values up to 10. Such high-sodium soils are termed “sodic” soils, and they may also be saline. Sodic soils contain so much sodium that the soils become dispersed and almost impervious to water.
Detailed explanation-3: -Low pH values (< 5.5) indicate acidic soils and high pH values (> 8.0) indicate alkaline soils. Soil pH between 5.5 and 8 is not usually a constraint to crop or pasture production.
Detailed explanation-4: -What Happens If Soil Is Too Alkaline? High pH levels typically hinder plant growth, especially with plants that do best in acidic soil like blueberries, rhododendrons, and azaleas. Soil alkalinity indicates a higher calcium carbonate content that produces chalky, highly porous soil.
Detailed explanation-5: -The range goes from 0-14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.