Response of purple coneflower, Echniacea purpurea L. moench. to biofertilization
2011
Sayed, H.S.A.R.
This study was carried out during two successive seasons of 2005/2006 and 2006/2007, at the experimental area of the ornamental Horticulture Department, Faculty of Agriculture, Cairo University, Giza, Egypt. This experiment was carried out to evaluate the effect of organic manures with biofertilizers on the growth and some active constituents of (Echinacea purpurea L. Moench) plant in comparison with chemical fertilizers. Three sources of organic fertilizers were used as follows: 1.62 ton Farm Yard Manure (FYM), 1.16 Ton chicken Manure (Ch.M) and 1.52 ton compost/ feddan. Each of organic fertilizer was added alone or in a mixture with one of the following biofertilizers, Bacillus megatherium (B), Azospirillum Lipoferum (A) or in a mixture of them in comparison with chemical fertilizers. Also on level (5g/1iter) of active dry yeast was added with each organic fertilizer. The results showed that organic manures with biofertilizers had a significant effect on vegetative growth characteristics (plant height, number of branches, number of flowers, number of suckers, root length, fresh and dry weights of aerial parts and roots), NPK %/plant, carbohydrates% plant and caffeic acid derivatives % in different plant organs. NPK treatment and compost with A +B were the -most effective fertilizers on the alkamides content. Applying organic fertilizers with either the strains or yeast recorded the highest values of vegetative growth parameters, NPK content, carbohydrate content and active constituents in most treatments (especially when chicken manure applied).
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