Effect of seed soaking with bacillus sp and organic fertilizer on growth of mustard green (Brassica juncea L.)

Bacillus sp. is one type of bacteria that functions as PGPR (Plant Growth Promoting Rhizobacteria). This study is designed to determine the effect of treatment duration time immersion of mustard seeds with Bacillus sp and the doses of organic fertilizer on growth and yield of mustard plants. The research was designed using Randomized Block Design (RBD) Factorial with two treatments i.e. time soaking of mustard seed with Bacillus sp. and organic fertilizer dose. The results showed that there was a very significant interaction (P <0.01) between the treatment of soil seed immersion with Bacillus sp. and the dosage of organic fertilizer on most parameters observed, except for the root length of the plant. The highest fresh weight of the mustard plant was found in the combination of the treatment of soaking of mustard seeds with Bacillus sp. for 20 minutes with a dosage of 1.50 kg organic fertilizer per plant that is 131,900 g, and the lowest was found in the combination treatment of soaking of mustard seeds for 30 minutes with a dosage of 0 kg organic fertilizer i.e. 34.333 g, so an increase of 384.178%. The highest drying weight of the mustard oven was found in a combination of treatment of soaking of mustard seeds with Bacillus sp. for 30 minutes with a dosage of 1.50 kg organic fertilizer per plant of 8,000 g, and the lowest was found in a combination treatment of immersion of mustard seed for 10 minutes with a dose of organic 0 kg fertilizer per plant that is 4.617 g.