Among all essential plant nutrients, potassium is the 3rd most likely, after nitrogen and phosphorus to limit plant productivity. The production and productivity of onion is very sensitive to potassium status in soil. Thus, it has become essential to replenish the reserve of potassium which are removed or lost from the soil. | Efficacy of vermicompost and inorganic source of potassium on yield attributing characters, bulb yield of kharif onion and residual fertility status of soil
