A soil is classified as sodic soil when______________________?

Related Mcqs:

1. Which compound is mostly used in Pakistan for the reclamation of saline-sodic & sodic soils_________________?

   A. Apatite B. Calcite C. Dolomite D. Gypsum...

2. The suitable species for reclamation of saline & sodic soil is:__________?

   A. Casuarina equisetifolia B. Albizia lebbeck C. Both A & B D. None of the above Submitted by: Shafiq Rehman...

3. 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...

4. The deficient macronutrient in the sodic soils is:_______?

   A. Mg B. Ca C. Mo D. Cu Submitted by: Shafiq Rehman...

5. 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...

6. Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?

   A. 250ºC B. 1000ºC C. 550ºC D. 1250ºC...

7. Being a soil scientist, do you know which is the popular book of soil science of Nyle.C.brady, 14th edition available in markets:

   A. Fundamentals of soil B. Essenttials of soil sciences C. The nature and properties of soil D. The mechanics of soil Submitted by: Shafiq Rehman...

8. The major soil fertility problems in Pakistani soils deficiencies of N, P and Zn. Deficiencies K, Fe, and B also occur in specific crop genotypes or soil types, while deficiencies of S, Cu, and Mn are negligible. however, the common nutrient deficiencies are_________________: and some micronutrients including Mo?

   A. N, P, K B. Ca, Mg, S C. both A & B D. The above statement is wrong Submitted by: Shafiq Rehman...

9. 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...

10. Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:

    A. Acid rain B. Neutral rain C. Both A & B D. None of the above Submitted by: Shafiq Rehman...