Effect of biofertilizers on growth and yield of spinach (beta vulgaris.l)

An investigation on “Effect of biofertilizers on growth and yield of Spinach (Beta vulgaris L.)” was conducted at the experimental farm, College of Horticulture, V.N.M.K.V Parbhani, during kharif season 2016-2017. The experiment was laid out in Randomized Block Design (RBD) with ten treatments replicated thrice by using the variety Pusa All Green. The treatment comprises of control (T1), Azotobacter@10kg/ha (T2), PSB@10kg/ha (T3), Azotobacter+PSBeach@10kg/ha (T4), Azotobacter +PSB as seed treatment (T5), Azotobacter @ 2lit/ha (T6) PSB @2lit/ha (T7), Azotobacter +PSB each @ 2lit /ha (T8), Azotobacter @ 10kg and PSB @2lit/ha (T9), and Azotobacter @2lit +PSB @10kg/ha (T10). Regarding the growth attributes it is observed that, the maximum values of growth parameters like plant height (26.66 cm), number of leaves per plant (19.33), number of branches per plant (1.32) and minimum days required for maturity (28.12 days) were recorded with the application of Azotobacter + PSB each @2lit/ha (T8).The yield attributes like maximum fresh weight of whole plant (98.11 g) was recorded in treatment of Azotobacter + PSB each @2lit/ha (T8) weight of shoot (69.11 g) and shoot root ratio (2.47) was recorded in treatment PSB @ 10kg/ha (T3). However, the minimum values for all other characters and maximum root weight (44.33 g) was recorded in control (T1) treatment. Significantly maximum yield (3.8 kg/ plot) and yield (63.34 q) per hectare was recorded in the treatment (T8) i.e. application of Azotobacter +PSB each @ 2lit /ha and it was at par with treatment of Azotobacter + PSB each @ 10kg/ha(T4) and the application of Azotobacter @ 10kg+ @ 2lit/ha (T9).