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This study was designed to determine the influence of a nitrogen fixing plant growth promoting rhizobacteria (PGPR) inoculation (seed coating and seedling dipping) and 6 doses of nitrogen (0, 40, 80, 120, 160, 200 kg ha-1) application on amino acid contents of cabbage. Coating and seedling dipping applications caused a significant increase in values histidine, glycine, thionin, arginine and alanine of cabbage. Highest glutamate, serine, asparagines and glutamine contents were obtained from 160-200 kg ha-1 nitrogen dose applied plants. As a result, the use of bacteria treatments provides means of improving amino acid contents in cabbage. [ABSTRACT FROM AUTHOR]

Present experiment was designed to determine the response of various dozes of fish manure (FM) and commercial fertilizers on plant growth, yield and nutrient content of lettuce. The treatments consisted of fish manure, commercial fertilizer and the combination of fish manure and commercial fertilizer with four dozes of nitrogen (0 kg/ha, 100 kg/ha, 150 kg/ha and 200 kg/ha). The results of the study showed that treatments significantly affected the growth and chemical characteristics of lettuce. The best results in regard to plant growth and yield were obtained from 100 and 150 kg kg/ha nitrogen dozes of the combination of fish manure and commercial fertilizer. [ABSTRACT FROM AUTHOR]