by BlastRoom
Interpret soil test results to evaluate drainage, fertility, and appropriate land use.
#environmental_science

20 questions
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A settled-jar test shows a thick sand layer, a thin silt layer, and almost no clay. What does this result mean for a vegetable plot?
A soil sample is 55% clay, 25% silt, and 20% sand. After rain, what condition is most likely at this site?
A garden soil tests as loam, with substantial sand, silt, and clay. Why is this texture useful for many crops?
A field soil contains mostly silt and forms a smooth powder when dry. What land-use concern should a manager consider?
A soil is 70% sand, 20% silt, and 10% clay. During a dry summer, what practice best addresses the texture result?
A proposed lawn site has a clay-dominant texture and puddles after ordinary rain. What is the most likely maintenance issue?
A field soil has pH 4.5, but the planned crop grows best near neutral pH. Which amendment directly addresses this result?
A soil test reports pH 7.8, and a farmer plans to grow blueberries that require acidic soil. What change would move the pH in the needed direction?
A community garden soil tests at pH 6.6, and its crops grow best from pH 6.0 to 7.0. What does the pH result suggest?
A soil tests at pH 5.0. What problem can this acidic reading create for many common crop plants?
An azalea bed tests at pH 7.5, and the plants show yellow leaves. Which interpretation best fits the test?
A percolation test pit remains full of standing water for many hours after filling. What does this indicate about the site?
In two identical test pits, Site A drains 30 cm of water in 10 minutes and Site B drains 30 cm in 2 hours. Which site has greater risk of nutrient leaching below plant roots?
A school measures infiltration at 1 cm per hour in a compacted recreation field. What result is most likely during a heavy rain?
A percolation pit empties in 5 minutes, and the soil is mostly coarse sand. What does the result imply for irrigation planning?
A proposed septic-field site has a shallow water table 30 cm below the surface and a percolation pit that stays wet. What is the key land-use concern?
A vegetable plot tests low in organic matter and nitrate but has good drainage. Which preparation addresses both fertility results without reducing drainage?
A site for a building has firm, well-drained loam, a 2% slope, and no shallow bedrock found in a 1.5 m test pit. What does this assessment most strongly suggest?
A rural site has loam soil, pH 6.5, good drainage, and at least 1 m of soil above bedrock. What use is best supported by these results?
A proposed parking lot is on a site with hydric soil, frequent saturation, and runoff flowing directly to a stream. What does the assessment indicate?
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Feedback Loops in Earth Systems
20 questions