Vol. 11, Issue 12 (2022)

Author(s):
Suman G Sahu, Ashish Kumar Dash, Narayan Panda, Kshitipati Padhan, Sweta Nanda, Bishnupriya Patra, Ambika Prasad Mishra, Meenakhi Prusty and Sushanta Kumar Pattanayak

Abstract:
A long-term field experiment was started in the College of Agriculture, OUAT, Bhubaneswar, Odisha since kharif 2010 in a randomized block design with 08 treatments and three replications under a cereal-vegetable-pulse cropping system. Different observations on plant were taken during crop growth period to evaluate the performance of the test crop towards different package and practices followed. The test crop was blackgram, cv PU31 the 26th crop in the sequence. The treatments were T₁: Control, T₂: Soil Test Dose (STD), T₃: STD + Farm Yard Manure (F), T₄: STD + Vermicompost (VC), T₅: STD + F + Biofertilizers (BFs), T₆: STD + VC + BFs, T₇: STD + F + L + BFs, and T₈: STD + VC + L + BFs which consisted of different combinations of inorganic fertilizers, organic manures (FYM and vermicompost), ameliorant (lime) and biofertilizers. Blackgram crop was grown in the experimental plot with different organic and inorganic fertilizers as per the treatment plans. The economic yield of crop blackgram recorded highest (0.82 t ha^-1) in the treatment supplied with inorganic and organic source of nutrient with lime and significantly higher than rest other treatments and lowest was obtained in STD (0.18 t ha^-1). Leaf samples from different treatments were collected at different growth stages for study of photosynthetic activity. The highest values 1.45, 1.91 and 1.95 mg g^-1 of fresh leaves were recorded for chlorophyll content with treatment where vermicompost was added with all the ingredients. Whereas lowest values were recorded for chlorophyll content with control. However, the nodulation, nodular nitrogen content and nutrient content of grain and plant (stover) after harvest of the crop were found to be better with the treatment where vermicompost was integrated with inorganic fertilizer, biofertilizer and lime.