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?

Related Mcqs:

1. The diagnostic techniques used in evaluating soil nutrient status and determining fertilizer requirements of the crop include:

   A. Nutrient deficiency symptoms & field experimentation B. Greenhouse pot experimentation & soil testing C. Plant analysis D. All of the above 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. 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. 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. Sustainable technologies to improve soil fertility and physical condition:

   A. Balance use of NPK fertilizers according to the need of crops. B. Following proper crop rotation (shallow rooted and deep root crops) in the cropping session. C. Regular use of FYM, Composts, acidic mulches, Green manures and Organic fertilizers to increase OM content of Soil. D. All of the above Submitted by: Shafiq Rehman...

6. 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...

7. Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?

   A. Alkaline B. Very much acidic C. Calcareous D. both A & C Submitted by: Shafiq Rehman...

8. Which of the following techniques is/are used for the soil fertility evaluation?

   A. Soil testing B. Plant tissue testing C. Aspergillus niger test D. All of these Submitted by: Mir Mehrbiyar...

9. Organic Soils are classified as ____________ and are also known as ____________ soils:

   A. Alfisols. fine & coarse textured B. Histosols, peat & muck C. Ultisols, Fe & Al rich D. None of the above Submitted by: Shafiq Rehman...

10. The forest soils have lower bulk density than agricultural soils because of their ______ content.

    A. High organic matter B. Low organic matter C. Both a & b D. None of these Submitted by: Adnan...