Abstract
<p>This study aimed to determine the extent of phosphate solubilizing bacteria resistant to salinity and still be able to provide P for paddy plant. Research using completely randomized design with fertilizer treatments: <br />(A) Bakteri Aerobacter aerogenes + Azotobacter indicus (B) Bakteri Bacillus thuringiensis + B. megaterium <br />+ Pseudomonas fluorescens, (C) Bakteri Nocardia mesentrica + Spirillum lipoferum, (D) Mix bakteri Pseudomonas fluorescens, Bacillus thuringiensis, B. megaterium, Nocardia mesentrica, Aerobacter aerogenes, Spirillum lipoferum, dan Azotobacter indicus, and (E) control (whitout inoculant), and salinity (NaCl): (1) 0% (0 grams / 7 kg soil), (2) 0.1% (7 grams / 7 kg soil), (3) 0.2% (14 g / 7 kg soil), (4) 0.3% (21 g / 7 kg soil), and (5) 0 , 4% (28 g / 7 kg soil). Thirty and one hundred days after transplanting (DAT), and then measured plant height, number of tillers, number and dry weight of whole grain paddy. The results showed that 0,1 % (7 gram/7 kg tanah) salinity is very good for the growth, activity and effectiveness of phosphate solubilizing bacteria and production of paddy, but 0.4% salinity (28 gr/7kg land) is still safe on the growth, activity and effectiveness of phosphate solubilizing bacteria (Pseudomonas fluorescens, Bacillus thuringiensis, <br />B. megaterium, Nocardia mesentrica, Aerobacter aerogenes, spirillum lipoferum and Azotobacter indicus) as biofertilizer or growth promoting rhizobacteria on growth and production of paddy.</p><p><br /><strong>Keywords</strong>: Salinity, Phosphate solubilizing bacteria, Paddy</p>
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