الفهرس | Only 14 pages are availabe for public view |
Abstract 2009/2010 and 2010/2011at the Experimental Farm of the Faculty of Agriculture, Minufiya University. This study included two parts ,the first one was dealing with studying the response of caraway plants grown under field conditions to four kinds of comerical biofertilizer namely (Microbein, Biohumein, Rhizobacterein and Nitrobein) and chemical nitrogen fertilization in the form of urea (46% n) at rates of 0.0, 60, 120 and 240 kg/fed separately or in combinations with the biofertilizers. The second part in this investigation was carried out in pots 30cms diameter and filled with 4.5kg air dried soil/pot for studying the effect of soil salinity levels at rates of 0.0, 0.10%, 0.20% and 0.30% and irrigation with either magnetized water or with ordinary water (non magnetized) separetly or in combinations on the growth, fruit yield, essential oil production and chemical constituents of caraway plants. The results of the first part of investigation showed that the application of the biofertilizer Biohumein or the moderate level of urea (120 kg/fed) separetly or together resulted in the best growth, fruit yield, essential oil production and the measured chemical constituents of the plant (N, P and K% and total carbohydrate percentage in the dried herb and photo synthetic pigments content in the leaves) when compared to the other treatments in the two growing season. Regarding the results of the second experiment ,it could be concluded that irrigating caraway plants with magnetized water improved growth parameters, fruit and essential oil production as well as the measured chemical constituent of the plant (N, P and K%, total carbohydrate percentage and photosynthetic pigments content in the leaves). In comparison with irrigation with non magnetized water. Furthermore, irrigation with magnetized water reduced the harful effect of soil salinity on the previously mentioned measurements of caraway plants in comparison with those irrigated with non magnetized water in the two growing seasons. |