Growth Promotion of Lettuce by Biofertilizer, BIOACTIVE, Prepared from Bacillus subtilus HR-1019 and N-acetyl-thioproline

Abstract

A biofertilizer, BIOACTIVE, was manufactured by N-acetyl-thioproline (ATCA) and mineral phosphate solubilizing bacteria. The growth promoting effect of the biofertilizer on lettuce was evaluated under three different pot conditions, and its stability was assessed in the field. According to the results of the pot experiments, plant growth was improved compared with that of control: 128%, 122%, and 153% for the leaf number, leaf length, and leaf mass, respectively. Applying the manufactured biofertilizer increased the concentration of phosphate: 118% and 132% in the cultivation soil and plant cells, respectively. These show that BIOACTIVE may have potential as an effective biofertilizer in agriculture.

Physiological changes and growth promotion induced in poplar seedlings by the plant growth-promoting rhizobacteria Bacillus subtilis JS

“…If inorganic nutrients or substances, which can improve the growth of the rhizosphere system, are applied, the production of woody biomass can be increased. Among biofertilizers, PGPR can minimize land salinization, while improving the pH, nitrogen (N) availability from nitric acid and ammonia, phosphate (P) content, and exchangeable positive ion amount of the soil (Yadav et al 2000, Vessey 2003, Lee et al 2013.…”

Growth and Yield of Potato (Solanum tuberosum) by Drench or Foliar Spray of a Microbial Agent AGN-LTE

“…For example, application of Bacillus subtilis strain KPS-11 to the rhizosphere of potato has resulted in increased stem and root length and weight (Muhammad et al, 2015). Moreover, Bacillus subtilus strain HR-1019 has promoted plant growth in lettuce and could be used as a replacement for compound fertilizer if N-acetyl-thioproline were added (Lee et al, 2013b). Shoot?…”