SCSC 301 Exams 1,2,3,4 Questions and Answers Already Passed
0 view 0 purchase
Course
SCSC 301
Institution
SCSC 301
SCSC 301 Exams 1,2,3,4 Questions and
Answers Already Passed
What is soil porosity, and why is it important?
Soil porosity refers to the amount of open space between soil particles, which is crucial for
water and air movement.
How does soil texture influence water retention?
Clay soils...
SCSC 301 Exams 1,2,3,4 Questions and
Answers Already Passed
What is soil porosity, and why is it important?
✔✔Soil porosity refers to the amount of open space between soil particles, which is crucial for
water and air movement.
How does soil texture influence water retention?
✔✔Clay soils retain water well due to their fine particles, while sandy soils drain quickly
because of larger particles.
What is the role of gypsum in soil management?
✔✔Gypsum improves soil structure by reducing compaction and helping with water infiltration.
Why is soil conservation important in agriculture?
✔✔Soil conservation prevents erosion, maintains fertility, and ensures sustainable crop
production.
What is a soil horizon?
1
,✔✔A soil horizon is a distinct layer of soil with specific characteristics, such as color and
texture, found at different depths.
How does organic matter affect soil fertility?
✔✔Organic matter enhances soil fertility by providing nutrients and improving water retention.
What does a soil pH of 7 indicate?
✔✔A soil pH of 7 is neutral, meaning it is neither acidic nor alkaline.
What is the impact of high soil salinity on plants?
✔✔High soil salinity can inhibit plant growth by reducing water uptake through the roots.
How does soil compaction occur?
✔✔Soil compaction happens when soil particles are pressed tightly together, reducing pore
space and air flow.
Why is crop rotation beneficial for soil health?
✔✔Crop rotation prevents nutrient depletion and reduces the buildup of pests and diseases.
2
,What is the purpose of contour plowing?
✔✔Contour plowing helps reduce soil erosion on slopes by following the natural contours of the
land.
How can over-irrigation affect soil?
✔✔Over-irrigation can lead to waterlogged soil, reducing oxygen availability for roots.
What is the difference between macronutrients and micronutrients in soil?
✔✔Macronutrients are needed in larger quantities, like nitrogen, phosphorus, and potassium,
while micronutrients are required in trace amounts.
Why is soil aeration important?
✔✔Aeration increases oxygen levels, promoting root growth and microbial activity.
What is a cover crop, and why is it used?
✔✔A cover crop is grown to protect and enrich the soil during off-seasons, preventing erosion
and improving fertility.
3
, How does soil color indicate its health?
✔✔Dark soil often indicates high organic matter content, while pale soil may suggest low
fertility.
What causes soil acidification?
✔✔Soil acidification can result from acid rain, the use of certain fertilizers, and natural processes
like plant root activity.
What is leaching, and how does it affect soil?
✔✔Leaching is the loss of nutrients as water drains through the soil, potentially reducing soil
fertility.
Why are legumes beneficial in soil management?
✔✔Legumes fix nitrogen in the soil, improving its nutrient content for future crops.
What is the purpose of soil sampling?
✔✔Soil sampling helps determine nutrient levels and soil health to guide fertilization and
planting decisions.
4
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BrilliantScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
