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