Pengaruh Pupuk Hayati Berbasis Azolla terhadap Nitrogen Tanah, Nitrogen Tanaman, Populasi Azotobacter, dan Hasil Tanaman Mentimun Pada Inceptisol Jatinangor

The low productivity of cucumber plants in Indonesia can be caused by several factors, one which is fertilization. Fertilization on Inceptisol soil has a nitrogen content needed to increase crop yields. use inorganic fertilizers limited avoid environmental pollution, so the biofertilizers an environmentally friendly option. purpose this study was determine effect concentration and interval application azolla extract based biofertilizer total N, plant N content, Azotobacter population yield. experiment carried out from August November 2021 at Ciparanje Experimental Garden, Faculty Agriculture, Padjadjaran University. This used Completely Randomized Block Design combination concentrations (0, 5, 10, 15, 20 mL.L-1) time (1, 2, 3 times). results showed that with different times had significant azotobacter but no levels, concentrations, addition mL/L 2 azolla-based increased fruit weight 35.97% compared control did not cause yield