الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 152 |  |  |
| | | from | 152 | | |
Abstract
A pot experiment was conducted under the green house conditions Mallawy Agricultural Research Station, Minia, Egypt during the two successive seasons Summer (2007)and winter (2007/2008). The work aimed to evaluate some organic extracts from two sources of organic fertilizers (Chicken manure, C M and Nile compost, NC) under two rates of mineral fertilizers (N P K).
Eighteen treatment were arranged in completely randomize block design in three factors with four replicates which were the simple possible combination between ten treatments of organic extracts applied as foliar spraying and two treatments of mineral fertilization as soil application. Thus, the total number of pots used in this study was 72 pots.
The, eight treatment of organic extracts were foliar applied at the W. Ex, K. Ex, Cit. Ex and Nit. Ex (regardless of the organic manure source).
Also, two treatments of soil applied mineral fertilization represented the full (100% RD) and the half (50% RD) of the recommended doses for cowpea and faba bean plants, 100kg ammonium sulphate 20.6%N/fad. (1.5g /pot), 300kg calcium super phosphate 15.5%P2O5 /fed. (4.5g /pot) and 100 kg potassium sulphate 48% k2O /fed. 1.50 g / pot).
The obtained results could be summarized as follows:
1- Growth parameters of cowpea and faba bean plants.
- The studied growth parameters, i.e. plant height, fresh and dry weight per pot were positively affected due to the spraying of organic extracts compared with the control treatment. Organic extract from the extracting solutions of W. Ex, K. Ex, Cit. Ex and Nit. Ex. (regardless of the organic manure source) led to significant increases in all the measured growth aspects in favour of Water Extract in comparison with the control treatments.
- Data indicated that there were differences between the used 50% RD and 100%RD of NPK favour of the 100% RD in all studied parameters of cowpea and faba bean plants (plant height, fresh and dry weight). Such differences reached the level of 5% significance in all studied growth parameters of both two crops.
- The studied effect of organic manure source, chicken manure and Nile compost on growth parameters. These parameters were obliviously significantly increased with Nile compost treatment, compared to chicken manure for both of the two tested crops.
- The interaction effects among the three studied factors were also detected on cowpea and faba bean spraying the water extracts of the Nile compost under soil application of 100% Rd of NPK fertilizers
2- Yield and its components of cowpea and faba bean plant:
- Spraying organic extract from the extracting solutions of W. Ex, K. Ex, Cit. Ex and Nit. Ex significantly increased all parameters of number of pod /pot, pod weight g /pot, number of seeds/ pot, seed weight g /pot and 100 seeds weight compared with the control treatment. The highest increase percent were obtained by water extract.
- Soil addition of N P K fertilizers either at the rate of 50% or 100% from the (RD) for cowpea and faba bean plant favour of the 100% RD in all studied parameters of cowpea and faba bean plants. Such differences reached the level of 5% significance in all studied of both two crops increased the mean values of all studied parameters.
- The studied effect of organic manure source, chicken manure and Nile compost on growth parameters. These parameters were obliviously significantly increased with Nile compost treatment, compared to chicken manure for both of the two tested crops.
- The interaction effects among the three studied factors were also detected on cowpea and faba bean spraying the water extracts of the Nile compost under soil application of 100% Rd of NPK fertilizers
3- N,P and k content (%) in plant shoots
- Organic extract from the extracting solutions of W. Ex, K. Ex, Cit. Ex and Nit. Ex significantly increased all estimated macro elements in plant foliage compared with the control. In addition, the highest contents of nitrogen, phosphorus and potassium were connected with the used citric acid Extract.
- Soil addition of the full NPK dose increased NP and K shoot contents except P in faba bean which was not significantly affected.
- The studied effect of organic manure source, chicken manure and Nile compost on growth parameters. These all estimated macro elements in plant were obliviously significantly increased with nile compost treatment, compared to chicken manure for both of the two tested crops.
- The studied effect of organic manure source, chicken manure and Nile compost on growth parameters. These parameters were obliviously significantly increased with Nile compost treatment, compared to chicken manure for both of the two tested crops.
- The effect of the interactions among the three factors used in this study showed that spraying cowpea and faba bean plants with citric acid extract of Nile compost under 50% of recommended NPK fertilizer dose gave the highest N, P and K contents of the shoot of both plants.
4- Iron, zinc and manganese contents in plant shoots (mg/kg)
- The highest contents of total Fe, Zn and Mn (mg/kg) were realized for cowpea and faba bean plants shoots treated with Citric acid Extract. These results were confirmed for both two crops.
- Fe, Zn and Mn contents of cowpea and faba bean plant shoots were significantly increased with addition of 100% from RD comparing with the 50% form RD treatment for both two crops.
- The studied effect of organic manure source, chicken manure and Nile compost on growth parameters. These parameters were obliviously significantly increased with Nile compost treatment, compared to chicken manure for both of the two tested crops.
- The effect of the interactions among the three factors, extracting solution, organic manure source and NPK level confirmed the above mentioned double interactions. The highest contents of Fe, Zn and Mn of both cowpea and faba bean shoots were achieved by spraying the citric acid extract of Nile compost under the half recommended dose of NPK.
5- N,P and k content (%) in seeds of cowpea and faba bean .
- Organic extract from the extracting solutions of W. Ex, K. Ex, Cit. Ex and Nit. Ex significantly increased all estimated macro elements in seeds foliage compared with the control. In addition, the highest contents of nitrogen, phosphorus and potassium were connected with the used Water Extract.
- Soil addition of the full NPK dose increased NP and K seeds contents except P in faba bean which was not significantly affected.
- The studied effect of organic manure source, chicken manure and Nile compost on growth parameters. These all estimated macro elements in plant were obliviously significantly increased with Nile compost treatment, compared to chicken manure for both of the two tested crops.
- The interaction effects among the three used factors, i.e. extracting solution, organic manure source and NPK fertilizer level, confirmed the results obtained by the double interaction effect. Soil application of 100% RD of NPK fertilizer combined with spray water extract of the Nile compost produced seeds for both crops with the highest contents of N, P and K.
6- Iron, zinc and manganese contents (mg/kg) on seeds cowpea faba bean plants.
- The highest contents of total Fe, Zn and Mn (mg/kg) were realized for cowpea and faba bean seeds treated with Citric acid Extract. These results were confirmed for both two crops.
- Fe, Zn and Mn contents of cowpea and faba bean seeds were significantly increased with an addition of 100% from RD comparing with the 50% form RD treatment for both two crops.
- Spraying the Nile compost extract, irrespective of the kind of the extracting solution, produced cowpea and faba bean seeds with higher contents of Fe, Zn and Mn than those resulted from spraying chicken manure extract
-Significant effects due to the interaction effects among the three studied factors were also detected on cowpea seed content of Zn and faba bean seed content of Fe, and spraying the water extract of The Nile compost under soil application of the 100% RD of NPK fertilizers gave the highest content of the three micronutrients.
7- crude protein content (%) on seeds cowpea faba bean plants.
- Organic extract from the extracting solutions of W. Ex, K. Ex, Cit. Ex and Nit. Ex significantly increased crude protein content (%) in plant seeds compared with the control. In addition, the highest content of crude protein content (%) in plant seeds was connected with the used Water Extract.
- Increasing NPK rate from 50% to 100% RD increased the crude protein contents of the seeds of both cowpea and faba bean.
- Meanwhile, spraying Nile compost extract, regardless the extracting solution used also recoded significant increase in seed protein content by 8.1% for cowpea and 4.6% for faba bean.
- The interaction effects among the three factors used on seed protein content were also significant and confirmed the above-mentioned double interactions. Spraying water extract of the Nile compost under the full RD of NPK fertilizer recoded the highest seed protein content of both cowpea and faba bean