Which of the following nutrient is 4th most important nutrient for Oilseeds and pulses?

Correct option is D

Sulphur is considered the 4th most important nutrient for oilseeds and pulses. It plays a crucial role in the synthesis of proteins, enzymes, and vitamins.
Examine each option:
(a) Nitrogen (N)
· Nitrogen is a primary nutrient essential for the growth and development of plants. It is a major component of amino acids, proteins, and chlorophyll. It is typically the most important nutrient for overall plant health and productivity.
(b) Potassium (K)
· Potassium is a major nutrient that helps in various physiological processes, including water uptake, enzyme activation, and photosynthesis. It is vital for the overall health and yield of plants, often considered the second or third most important nutrient.
(c) Molybdenum (Mo)
· Molybdenum is a micronutrient required in very small amounts. It is essential for the functioning of certain enzymes involved in nitrogen fixation and nitrate reduction. It is important but not considered one of the top four primary or secondary nutrients.
(d) Sulphur (S)
· Sulphur is crucial for oilseeds and pulses as it is a component of certain amino acids (like cysteine and methionine) and vitamins. It is involved in the formation of chlorophyll and helps in the synthesis of oils. Sulphur is often regarded as the 4th most important nutrient after nitrogen, phosphorus, and potassium.
(e) Phosphorus (P)
· Phosphorus is another primary nutrient essential for energy transfer, photosynthesis, and nutrient movement within the plant. It is typically the second or third most important nutrient for plant growth.
Conclusion:
Sulphur is the 4th most important nutrient for oilseeds and pulses, following nitrogen, phosphorus, and potassium. The other nutrients listed play critical roles, but in the context of oilseeds and pulses, Sulphur is especially significant for protein and oil synthesis.