Podcast
Questions and Answers
Why are strongly acidic soils (pH 4.0) unfavourable for plant growth?
Why are strongly acidic soils (pH 4.0) unfavourable for plant growth?
- They have high levels of basic cations like Ca, Mg, K, and Na.
- They have low levels of toxic elements like Al, Mn, and Fe.
- They have optimal pH levels for plant growth.
- They interfere with the growth of crops and reduce yield. (correct)
What can happen to the concentration of Al, Mn, and Fe in extremely acidic soils (pH 4.0)?
What can happen to the concentration of Al, Mn, and Fe in extremely acidic soils (pH 4.0)?
- Disintegrate
- Decrease
- Remain constant
- Increase to toxic levels (correct)
What effect do strongly alkaline soils (pH 8.5) have on crop production?
What effect do strongly alkaline soils (pH 8.5) have on crop production?
- Promote crop growth
- Enhance nutrient absorption
- Reduce yield (correct)
- Prevent diseases
Why should soils be limed when their pH falls below 5.0?
Why should soils be limed when their pH falls below 5.0?
Which soil pH requirement is most suitable for Rice (upland) cultivation?
Which soil pH requirement is most suitable for Rice (upland) cultivation?
How does the Cation Exchange Capacity (CEC) of soil affect nutrient availability?
How does the Cation Exchange Capacity (CEC) of soil affect nutrient availability?
How does soil pH affect the availability of nutrients for plant growth?
How does soil pH affect the availability of nutrients for plant growth?
What effect does a high cation exchange capacity (CEC) have on plant growth?
What effect does a high cation exchange capacity (CEC) have on plant growth?
Why is fertile soil generally dark in color?
Why is fertile soil generally dark in color?
How does soil color impact the availability of nutrients in the soil?
How does soil color impact the availability of nutrients in the soil?
What is the role of soil pH in determining the quality of soil for plant growth?
What is the role of soil pH in determining the quality of soil for plant growth?
How does soil pH affect the absorption of nutrients by plant roots?
How does soil pH affect the absorption of nutrients by plant roots?
What is the critical role of temperature in plant growth?
What is the critical role of temperature in plant growth?
Why is an inadequate amount of water detrimental to plant growth?
Why is an inadequate amount of water detrimental to plant growth?
What temperature range do plants generally require to survive?
What temperature range do plants generally require to survive?
How does water influence the opening and closing of stomata in plants?
How does water influence the opening and closing of stomata in plants?
What happens when plants are exposed to temperatures above their survival range?
What happens when plants are exposed to temperatures above their survival range?
How does water help cool down plants during the transpiration process?
How does water help cool down plants during the transpiration process?
