Availability of Zn is higher to crops in:_________?

Related Mcqs:

1. From the sources of plant nutrients availability in soil, which of the following statements are correct:

   A. The plant absorbs carbon as carbondioxides directly from the atmosphere.
   B. Water is the source of hydrogen
   C. Air & water is the source of oxygen & the chief source of soil nitrogen is organic matter & when organic matter decomposes it gives ammonia.
   D. All of the above

   Submitted by: Shafiq Rehman

2. Availability of Phosphorus is maximum at:__________?

   A. Neutral
   B. Alkaline
   C. Acidic
   D. None of these

   Submitted by: Shafiq Rehman

3. Erosion permitting and erosion resisting crops grow alternatively at right angle to the slope of the land is called as:_________?

   A. Linear planting
   B. Strip planting
   C. Cover planting
   D. All of the above

   Submitted by: Shafiq Rehman

4. The lower leaves turn yellow and in some crops they quickly start drying up as if suffering from shortage of water, stunted growth, leaves & fruits shedding & whole plant becomes yellow, are deficiency symptoms of:_________?

   A. Potash
   B. Nitrogen
   C. Calcium
   D. Both a & c

   Submitted by: Shafiq Rehman

5. 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

6. 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

7. Chemicals, used for controlling the disease of crops, fruits & vegetables is___________ & chemical prepared for controlling insect-pests ——————-:

   A. Insecticides—Herbicides
   B. Fungicides—Insecticides
   C. Weedicides—insecticides
   D. None of the above

   Submitted by: Shafiq Rehman

8. Who used first artificial hybridization in fruit crops ____________________?

   A. Knight (1800)
   B. Karpocho (1810)
   C. Jones (1917)
   D. none

9. Worlds major food crops belong to which of the following family?

   A. Palmaceae
   B. Moraceae
   C. Both a & b
   D. Gramineae

   Submitted by: Shafiq Rehman

10. These crops are planted in winter from October to December and harvested in summer from March to May is called______?

    A. Kharif crops
    B. Rabi crops
    C. Relay crops
    D. All of these

    Submitted by: Mukhtir Ali jan