#1. Gene responsible for nitrogen fixation is...........
#2. Nitrifying bacteria convert
#3. Which of the following is macronutrient
#4. Soil nitrate is more likely to leach than ammonium due to its
#5. Sulphur is an important nutrient for optimum growth and productivity in
#6. Azolla has a symbiotic relationship with
#7. Brown heart disease is due to deficiency of
#8. Plants absorb nitrogen as
#9. Exanthema is a result of deficiency of
#10. Essential macronutrients are .............
#11. A crop plant which can grow in nitrogen deficient soils without external supply of it is
#12. Function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to
#13. An essential element is that which ........
#14. Which one is not a micronutrient?
#15. One mineral activates enzyme catalase and other is constituent of chlorophyll. They are respectively
#16. Chlorosis is caused by deficiency of
#17. Non-symbiotic nitrogen fixing prokaryote is
#18. Element required in least quantity is ......
#19. Minerals are absorbed in the form of
#20. Plant ash indicates
#21. Which group of three micronutrient elements affect both photosynthestic nad mitochondrial electron transport?
#22. Element which is a component of proteinaceous materials and protoplasm is
#23. A primary deficiency is caused by insufficient absorption of
#24. enitrification is carried out by .......
#25. Bacteria that convert ammonia to nitrite belong to
#26. Nitrogen is an important constituent of .......
#27. Inorganic nutrients are present in the soil as
#28. Which one is essential for root growth?
#29. Active transport occurs
#30. The enzymes required for nitrogen fixation is
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