According to the Soil survey of Pakistan, the total waterlogged summer-rain area in the country is:_________?

Related Mcqs:

1. 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...

2. 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...

3. 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...

4. According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?

   A. Drought stress B. Accelerated erosion & salinization C. Depletion of soil fertility and SOM D. All of the above Submitted by: Shafiq Rehman...

5. A soil is classified as sodic soil when______________________?

   A. EC is 8.5 C. SAR is >13 D. All the above...

6. Addition of sodium hexametaphosphate in soil for determination of soil texture causes__________________?

   A. Agregation of soil particles B. Cementing of soil particles C. Dispersion of soil particles D. All the above...

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

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

8. 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...

9. 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...

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...