In alkaline soil which form of phosphorus uptake by plants?

Related Mcqs:

1. In acidic soil which form of phosphorus uptake by plants?

   A. Primary orthophosphate B. Secondary orthophosphate C. Both D. None of these Submitted by: gmsyed...

2. In which form plant uptake phosphorus?

   A. H2po4 B. HPO4-2 C. Both D. Non of these Submitted by: gmsyed...

3. Phosphorus (P) is the second major nutrient essential for plant growth. With the exception of Nitrogen (N) and Potassium (K), Phosphorus is required by plants in_________?

   A. Lesser quantities B. Greater quantities C. Not required D. The above statement is wrong Submitted by: Shafiq Rehman...

4. Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:

   A. Mull B. Mulch C. Mycorrhizae D. Muck Submitted by: Shafiq Rehman...

5. Mechanisms of material uptake by plants is by____________________?

   A. Diffusion B. Osmosis C. Root interception D. Mass flow...

6. What happens when an saline-alkaline soil is reached with water:

   A. pH decrease, Ec increase B. pH & Ec both increase C. pH increase & Ec decrease D. None of these Submitted by: Mir Mehrbiyar...

7. Loss of nitrogen in the form of NH3 in alkaline medium is known as_________?

   A. Denitrification B. Leaching C. Volatilization D. None of these Submitted by: Shafiq Rehman...

8. The availability of essential nutrients from soil to the plants is controlled by the ________ properties of soil:

   A. Physical B. chemical C. Biological D. both A & B Submitted by: Shafiq Rehman...

9. Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:

   A. Soil amendment B. Soil conditioner C. Both a & b D. None of the above Submitted by: Shafiq Rehman...

10. Pedogenic processes bring about changes in the parent materials in the form of _____________________, within the soil body (soil profile)?

    A. Additions, losses B. Transfers and transformations C. both A and B D. None of the above Submitted by: Shafiq Rehman...