Soil Organic Matter (SOM) which consists of about _______ % organic carbon plays a vital role by providing macro & micro nutrients:

Related Mcqs:

1. Soil Organic Matter (SOM) serves not only as a reservoir of all the required plant nutrients, but it:

   A. Provides energy for the microbial B. Maintains the productivity of soil C. Gives structure to the soil D. All of these Submitted by: Shafiq Rehman...

2. Organic matter decomposes rapidly in Pakistani soils because of ____________ conditions, that is why our soils generally have < 1% organic matter:

   A. High temperature B. Alkaline C. Both a & b D. None of a & b Submitted by: Shafiq Rehman...

3. The indicator used for the the estimation of the organic matter or organic carbon is;_________?

   A. Mixed indicator B. Diphenylamine indicator  C. Both a and b D. None of the above Submitted by: Shafiq Rehman...

4. Walkley and blacks method of organic matter determination allows recovery of ______ ℅ organic carbon content:

   A. 44 ℅ B. 45 ℅ C. 33℅ D. None of the above Submitted by: Shafiq Rehman...

5. Walkley and Blacks method of organic matter determination allows recovery of _____% organic carbon content:

   A. 74 % B. 54 % C. 62.5 % D. 34% Submitted by: Shafiq Rehman...

6. Potassium plays a significant role in the transport of water & nutrients through the plant in the xylem. When the supply of K is reduced, the transportation of ___________________ is depressed:

   A. Nitrates, Phosphates B. Calcium, magnesium C. Amino acids D. All of the above Submitted by: Shafiq-ur-Rehman...

7. Previously Essential nutrients required for the growth of plants were sixteen. In recent time the essential nutrients required for the growth of plants are:_________?

   A. 16 B. 17 C. 18 D. None of the above Submitted by: Shafiq Rehman...

8. __________________ systems play a crucial role in increasing soil organic C storage and reducing net emissions of greenhouse gases in addition to soil erosion control:

   A. Engineering B. Agroforestry  C. Cultivating D. All of the above Submitted by: Shafiq Rehman...

9. 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...

10. Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?

    A. Peat soil B. solonchalk soil C. Muck soil D. Both a and c Submitted by: Shafiq Rehman...