The EC: SAR and RSC values suggested by WAPDA for 3rd class irrigation water(C,S,R,) are____________________?

Related Mcqs:

1. The formula used for calculating RSC is _____________________?

   A. RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2) B. RSC=(CO32 + HCO2) ( Ca2 + Mg2) C. None of the above D. non of these...

2. The horizontal flow of water in irrigation channel or canal leading to water loss is called as:_________?

   A. Infiltration B. Percolation C. Seepage D. All of these Submitted by: Shafiq Rehman...

3. According to WAPDA, the ECe of the salt free soil should remain__________________?

   A. < 4 dsm-1 B. Equal to 4 dsm-1 C. 4-8 dsm-1 D. None of the above...

4. Boron concentration is irrigation water is considered safe only upto_________________?

   A. 0.7 ppm B. 1.5 ppm C. 2 ppm D. 3 ppm...

5. The depth of irrigation water required for the full crop period is called_________?

   A. Delta of water  B. Water required C. Crop water required D. None of these Submitted by: Mukhtir Ali jan...

6. Planets in our system are____________________?

   A. 8 B. 12 C. 10 D. 9...

7. Rocks which are formed by disintegration of pre-existing rocks by weathering are____________________?

   A. Sand stone B. Classics C. Igneous D. Greis...

8. Total salt affected soils of Pakistan are____________________?

   A. 6.3 m ha B. 5.0 m ha C. 12.3 m ha D. 10.5 m ha...

9. Examples of micro biota are____________________?

   A. Protozoa B. Virus C. Both a & b D. None of the above...

10. The digestive vacuole in the animal cell are____________________?

    A. Ribosomes B. Lysosomes C. Lysozymes D. Dictysomes...