Soil moisture and ET losses are_________________?

Related Mcqs:

1. 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

2. 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

3. According to national commission of Pakistan, post harvest losses in fruits are_________________?

   A. 20-40%
   B. 60-70%
   C. 30-50%
   D. 20-25%

4. 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

5. The moisture content below which a cohesive soil does stick to metal tools is known as______________________?

   A. Liquid limit
   B. Plastic limit
   C. Sticky limit
   D. Alter berg limit

6. The resistance of a soil at various moisture contents to mechanical stresses or manipulations:

   A. Soil crusting
   B. Soil consistence
   C. Bulk Density
   D. Both a & c

   Submitted by: Shafiq Rehman

7. Losses of soil water not includes_________?

   A. Direct evaporation from the soil & transpiration from vegetation
   B. down-ward drainage
   C. Hydroponics loss
   D. Surface run-off from the field

   Submitted by: Shafiq Rehman

8. A soil is classified as sodic soil when______________________?

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

9. 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

10. 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