Microbial Enriched Biochar Levels and Fertilizer Doses on Soil Chemical Properties under Spinach (Spinacia oleracea) Production

Intensive cultivation of vegetables and imbalanced fertilization depleted the soil nutrients caused low yield with poor quality crops. A novel microbial enriched biochar fertilizer combination could alleviate nutrient stress. Therefore, a field experiment was conducted 14 treatments [4 levels (5, 7.5,10, 15 t ha-1), 3 doses fertilizers (50, 75,100% recommended) along without absolute control] in spinach production. This study randomized block designed replicated three times trial plot at BAIF, Central Research Station, Pune during 2020-2021. Maximum growth parameters (plant height, leaf length, width petiole length) were recorded (T4) Biochar @ 10 tha-1 + 75% RDF followed by (T7) 7.5 +50% RDF. Whereas, highest Spinach (18.58 tha-1) under 75 % (T3) (17.93 tha-1). The treatment (T1) 100 has registered as superior from an economic point view. Furthermore, minimum values control. Based on above results it is concluded that combined application biochar(10t ha-1) (75% recommended dose) enhanced availability to for maximum yield.