Which of the following crop takes N in ammonical form:

Related Mcqs:

1. What is the effect of application of P2O5 fertilizer to a green manure leguminous crop in the availability of phosphorus to the succeeding crop?

   A. Green manure increases the availability in organic from to the next crop
   B. It does not affect the availability of phosphorous to succeeding crop 
   C. Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter
   D. It fixes the P2O5 through humus and reduces the availability..

   Submitted by: Shafiq Rehman

2. Which one of the following is a high salt tolerant crop?

   A. Moong
   B. Arhar
   C.  Both a & b
   D. Lucerne

   Submitted by: Shafiq Rehman

3. Which of the following is not a legume crop?

   A. Ground nut
   B. Beans
   C. Wheat
   D. Peas

   Submitted by: Shafiq Rehman

4. A compound toxic to crop formed by the thermal decomposition of urea is_________________?

   A. Uric acid
   B. Biurct (NH2CONH CONH2 H2O)
   C. Diuret
   D. Both b & c

5. 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

6. 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

7. From the point of view of crop production, Soil testing refers to______________?

   A. Laboratory analysis assessing plant available nutrient status
   B. Collection of plant leaves samples only
   C. Salinity & elemental toxicity of a soil
   D. Both A & C

   Submitted by: Shafiq Rehman

8. Most out standing green manure crop is__________?

   A. Sun hemp
   B. Dhaincha
   C. Both of the above
   D. None of the above

   Submitted by: Shafiq Rehman

9. Items needed for synthesis of plant food in green leaves are _________ & the process through which it takes place is called photosynthesis:

   A. Sunlight
   B. Chlorophyll
   C. Water & plant nutrients
   D. All of the above

   Submitted by: Shafiq Rehman

10. “Wash-in” takes place in which horizon?

    A. E
    B. O
    C. B
    D. A

    Submitted by: Shafiq Rehman