Effectiveness of compost enriched with N fertilizer, L-tryptophan (L-TRP) and plant growth promoting
rhizobacteria (PGPR) was tested for improving the growth and yield of wheat in a pot experiment. The compost
was enriched with 25 and 50% of the recommended N fertilizer as urea, L-TRP @ 10 mg kg'1 compost, and
PGPR culture containing 107
- 108
colony forming units (ctu) mL'1 @ 100 mL kg'1 compost. Results revealed that
the enriched compost significantly improved the growth and yield of wheat. Enriched compost along with 50% of
the recommended dose of N fertilizer was more effective in improving the growth and yield (4.8 and 98.7% more
than chemical N fertilizer and control respectively). These findings imply that the combined use of compost and
chemical fertilizer could be more effective and economical to increase the yield of crops on sustainable basis than
the chemical N fertilizer alone.
M. Javed Akhtar, H.N. Asghar, M. Asif , Z.A. Zahir. (2007) Growth And Yield Of Wheat As Affected By Compost Enriched With Chemical Fertilizer, L-tryptophan And Rhizobacteria, , Volume-44, Issue-1.
