MCQs Soil Science-58

MCQs Soil Science-58

1. Humus increases soil fertility by improving ————-

 
 
 
 

2. ————– are the most efficient and dominant organisms in decomposing lignin-rich materials like wood

 
 
 
 

3. Nitrogen is usually the most limiting nutrient in crop production

 
 

4. Soil enzyme activity decreases with heavy metal pollution

 
 

5. Which fraction of soil organic matter decomposes fastest?

 
 
 
 

6. A higher C:N ratio in residues leads to ———-

 
 
 
 

7. Root exudates promote microbial growth in the rhizosphere

 
 

8. Clay soils generally have higher fertility than sandy soils

 
 

9. A productive soil under one crop may ———-

 
 
 
 

10. Rhizobia, bacteria live in the roots of leguminous plants, play a crucial role in _________

 
 
 
 

Question 1 of 10

Leave a Reply

Your email address will not be published. Required fields are marked *