Author(s):

Priyanka Kumari, Arun Kumar Jha, Gopal Kumar and Amarjeet Kumar

Abstract: A field experiment was conducted during kharif season (2018-19) to find out the effect of nutritional modules (Vermicompost and inorganic fertilizers) on growth, yield and nutrient uptake by onion (Allium cepa L.). There were fifteen treatments comprised of varied levels of vermicompost and chemical fertilizers. The experiment was laid out under Split plot design (SPD) and the treatments were triplicated during the experiment. Significantly higher yield of onion (31.84t ha^-1) was observed in the plots received 50% K through vermicompost +50% K through fertilizers (T₄) as compared to other treatments. Similar significant effect was observed on nutrient content (N, P and K) and nutrient uptake (N, P and K). On the basis of results obtained it can be concluded that the nutritional modules (vermicompost and inorganic fertilizers) can substitute the potassium requirement of plant to the extent of 20-23% and increased the yield, content and uptake of N, P and K by onion significantly over the sole use of chemical fertilizers.

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