ORIGINAL_ARTICLE
EFFECT OF ORGANIC AND INORGANIC PHOSPHORUS APPLICATION ON SOME CHEMICAL PROPERTIES AND SOIL PHOSPHORUS FRACTIONS
Two successive cultivation seasons (winter season 2006/2007 and summer season 2007) were conducted in field experiments on silty clay loam soil at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate. The experiment was designed using a randomized complete block design with three replicates to study the effect and residual effects of organic and inorganic phosphorus using farmyard manure (FYM) as a source of organic phosphorus, rock phosphate (RP) and supper phosphate (SP) as a source of inorganic phosphorus on some soil chemical properties and phosphorus fractions. Furthermore, economical analysis was done by calculating the net income.
The obtained results can be summarized as follows:-
1-The use of organic and inorganic phosphorus lead to a slightly decreases in soil reaction (pH) and progressive increases in soil salinity (EC), soluble ions (Ca, Mg, Na, HCO3, Cl and SO4), total soluble salts (TSS) and sodium adsorption ratio (SAR).
2-The mean values in the two seasons showed that the effect of organic phosphorus (FYM) on soil chemical properties was more pronounced than the effect of inorganic phosphorus additions (rock phosphate and supper phosphate).
3-The distribution values of inorganic P, i.e., easily soluble P (labile-P fraction), Al-P fraction, Fe-P fraction and Ca-P fraction were increased with increasing the addition of OP with RP and SP. Also, the labile-P fraction, Al-P fraction and Fe-P fraction as a percent of the total P were increased by increasing all added treatments, except the Ca-P fraction as a percent of total P which was decreased with increasing all added treatments.
4-The mean values of total P of soil were increased with increasing all added treatments. The highest values were recorded by addition of 30 m3/fed OM with 200 Kg/fed RP and 150 Kg/fed SP which gave 12.63 and 14.93 µg/g soil, comparing with the control which recorded 4.54 and 4.66 µg/g soil in the first and second seasons, respectively.
5-Economical analysis indicate that the addition of 30 m3/fed. OM with 200 Kg/fed RP and 150 Kg/fed SP was the most valuables compared with the other treatments. Also, it gave the highest net income (8263.96 LE/fed) as compared with the control which gave the lowest value (4798.86 LE/fed.).
6-Results reveal that it is useful to use the treatments of organic and inorganic phosphorus represented by (OM, RP and SP) to get a markedly improvement in soil chemical properties which reflect on higher yield incorporated with high net income under silty clay loam soils.
https://jssae.journals.ekb.eg/article_90294_64f83b9bde1390a8da20edf5749154d2.pdf
2009-03-01
2357
2380
10.21608/jssae.2009.90294
organic matter
inorganic phosphorus
rock phosphate (RP)
super phosphate (SP)
soil chemical properties
Phosphorus fractions
M. El-D.
El-Sodany
1
Soil, Water and Environment Research Inst. Agric. Res. Center, Giza, Egypt.
AUTHOR
E. I.
El-Maddah
2
Soil, Water and Environment Research Inst. Agric. Res. Center, Giza, Egypt.
AUTHOR
ORIGINAL_ARTICLE
A STUDY ON HARVESTING MECHANIZATION OF SOYBEAN CROP
The experiments were carried out during the agricultural season of 2003 to evaluate two different systems of harvesting soybean crop to choose the most efficient and economic system as well as to determine the optimum operating conditions for both systems. The first system was harvesting soybean crop by combine harvester (Yanmar-CA760) which was tested at four different forward and cylinder speeds under four various levels of grain and straw moisture contents. The second was harvested by hand sickle then threshed, winnowed by Turkish threshing machine that was tested at four feed rates and cylinder speeds under the same above mentioned moisture contents. All experiments were performed at the research farm of RiceMechanizationCenter, Meet El-Deeba, Kafr El-Sheikh Governorate.
Results showed that combine harvester (Yanmar-CA760) is strongly recommended since it gave lower losses, damage, costs and higher performance efficiency compared to manual harvesting and gathering followed by mechanical threshing and winnowing using Turkish thresher. The optimum operating conditions for combine harvester (Yanmar-CA760) are at forward speed of 2.6 km/h, cylinder speed of 10.89 m/s and grain moisture content of 18.50%. However, the optimum operating conditions for manual harvesting and gathering followed by mechanical threshing and winnowing using Turkish thresher was at feed rate of 0.5 kg/s, cylinder speed of 11.99 m/s and grain moisture content of 18.50%.
https://jssae.journals.ekb.eg/article_90295_2187c242c09fba20f2738afb6d1ac22e.pdf
2009-03-01
2381
2395
10.21608/jssae.2009.90295
S.M.
Gomaa
1
Agric. Eng. Dept., Fac. of Agric., Kafrelsheikh Univ.
AUTHOR
R.R.
Abu-Shieshaa
2
Agric. Eng. Res. Inst., Agric. Res. Center., Giza.
AUTHOR
F.I.
Hindy
3
Agric. Eng. Dept., Fac. of Agric., Kafrelsheikh Univ.
AUTHOR
M.A.
Hassan
4
Agric. Eng. Res. Inst., Agric. Res. Center., Giza.
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF ORGANIC MANURE AND SOME MACRO AND MICRO NUTRIENTS ON WHEAT GROWN ON A SAND SOILS I. YIELD POTENTIALITY
Two field experiments were performed in Village No. 1, West of Samallote, Minia Governorate, Egypt during 2004/2005 and 2005/2006 seasons to study the effect of four levels of farmyard manure, i.e. 0, 10, 20 and 30 metric ton/fed; NPK fertilization doses i.e. (0/0/0), (60/15/24) and (120/30/48) (kg N/P2O5/K2O/fed.) and methods of Fe, Mn, Zn and Cu micronutrient application, namely without micronutrients, soil application and foliar spraying on dry weight, grain and straw yields and nutrient use efficiency of wheat Triticum aestivium, (cv Sids 1) under a newly cultivated sand soil conditions.
Dry weight and grains and straw yields showed positive response to application of 30 ton FYM/fed, the use efficiency for N, P and K decreased with increasing organic manure potentially at the highest FYM rate.
Dry weight and grain and straw yields as well as NPK-use efficiency increased as NPK increased to the highest level. The lowest values in P- and K-use efficiency were recorded with the low NPK rate.
Application of micronutrients increased grain and straw yields as well as N, P and K use efficiency. Foliar spray surpassed soil application on grains and straw yields, but soil application method exerted the highest values of N, P and K use efficiency.
Results recommended that wheat under sand soils should be fertilized with 30 ton FYM/Fed, NPK at rate of 120 kg N, 30 kg P2O5 and 48 kg K2O/fed and micronutrients (Fe, Mn, Zn and Cu) as foliar spraying.
https://jssae.journals.ekb.eg/article_90296_9dafc5e703ac903b0146448ee22b6d30.pdf
2009-03-01
2397
2407
10.21608/jssae.2009.90296
Wheat
sand soils
farmyard manure
nitrogen
phosphorus
potassium
Micronutrients
use efficiency
M.E.
Ali
1
Dept. of Soils, Fac. of Agric. Benha, Univ.
AUTHOR
S.A.
Ismail
2
Soil, Water and Environment Res. Inst., A.R.C., Egypt.
AUTHOR
O.H.M.
El-Hussieny
3
Dept. of Soils, Fac. of Agric. Benha, Univ.
AUTHOR
A.M.
Abd El-Hafeez
4
Soil, Water and Environment Res. Inst., A.R.C., Egypt.
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF ORGANIC MANURE ENRICHED WITH MACRO AND MICRONUTRIENTS: II. NUTRIENTS UPTAKE BY WHEAT AND THEIR AVAILABILITY IN SAND SOIL
Two field experiments were performed at Village No. 1, west of Samallote, Minia Governorate, Egypt during 2004/2005 and 2005/2006 seasons to study the effect of four levels of farmyard manure (0, 10, 20 and 30 ton/fed); NPK fertilization doses, (i.e. 0, low (60/15/24) and high (120/30/48) kg of N, P2O5 and K2O/fed) and the micronutrients (Fe, Mn, Zn and Cu) which were applied, soil application or as foliar spraying on N, P, K, Fe, Mn, Zn and Cu uptake by wheat plants (Sids 1 cv) grown on a sandy soil and their availability in soil. The results could be summarized as follows;
Uptake of N, P, K, Fe, Mn, Zn and Cu by wheat plants significantly increased with increasing rate of the applied FYM and NPK, as well as the micronutrients application, where foliar spraying surpassed soil application in both seasons.
The soil availability of N, P and K responded to manuring only. However, phosphorus only significantly increased by increasing NPK fertilization.
Soil available contents of Fe, Mn, Zn and Cu were significantly affected by manuring and micronutrients as soil application, while foliar spray did not affect contents of these micronutrient in both seasons.
It could be concluded that wheat under sand soils should be fertilized with 30 ton FYM/fed; NPK at rate of 120 kg N, 30 kg P2O5 and 48 kg K2O/fed. Also, the micronutrients should be applied to improve both nutrients uptake by wheat plants and their availability in soil.
https://jssae.journals.ekb.eg/article_90297_9a0498b369a84726ed639a8fe5996c49.pdf
2009-03-01
2409
2424
10.21608/jssae.2009.90297
Wheat
sand soils
farmyard manure
nutrients uptake
Nutrients availability
M.E.
Ali
1
Dept. of Soils, Fac. of Agric. Benha, Univ.
AUTHOR
S.A.
Ismail
2
Soil, Water and Environment Res. Inst., A.R.C., Egypt.
AUTHOR
O.H.M.
El-Hussieny
3
Dept. of Soils, Fac. of Agric. Benha, Univ.
AUTHOR
A.M.
Abd El-Hafeez
4
Soil, Water and Environment Res. Inst., A.R.C., Egypt.
AUTHOR
ORIGINAL_ARTICLE
ANALYSES OF CALCULATED VS MEASURED POWER OF THE LOCALLY FABRICATED COMPOST TURNER
Compost turning machine was designed, modified and fabricated locally. The large number of field testes run by the turner proved that the machine was well designed and reliable. According the machine was field operated for several seasons in turning compost windrows at variable conditions with recognized turning efficiency. The experiments showed that the double drums machine turned the compost windrows pile with high quality. The local fabricated compost turner is powered by two power systems. The first is mechanical system and the second is hydraulic system. The mechanical system is to rotate the double augers drums path by tractor PTO. The hydraulic system is to push the machine and tractor to the front path by hydraulic power from the tractor. The objectives of this study were to optimize power source requirement for the locally fabricated compost turner as follow:-
Analysis of theoretical parameters that affect both rotating augers and forward motion of turner.
Determine actual vs measured power required for the turner.
The power requirements were calculated to defy the actual power consumption to be suitable and safe for machine. The maximum power was 45 kW and the minimum was 8 Kw. From design calculation of the main parts in the hydraulic system, the maximum diameter of the cylinder piston is 90 mm to raise and lower the turner box with double drums. Anther side of the two cylinder piston to lower and raise the machine during transportation is 90 mm also. Theoretical hydraulic motor power which is satisfactory to drive the system (turner and tractor) was calculated and the proper motor size was selected.
https://jssae.journals.ekb.eg/article_90298_83c35e3fb74efc44f6bfc65868121652.pdf
2009-03-01
2425
2441
10.21608/jssae.2009.90298
M. A.
Baiomy
1
Agric. Eng. Res. Inst. Egypt.
AUTHOR
A. A.
El-Gwadi
2
Agric. Eng. Res. Inst. Egypt.
AUTHOR
H. A.
Radwan
3
Agric. Eng. Res. Inst. Egypt.
AUTHOR
ORIGINAL_ARTICLE
THE TECHNOLOGICAL PROPERTIES OF FLAX FIBERS ASSOCIATED WITH A DEVELOPED SEPARATING MACHINE
The aim of this work is to associate the main technological properties of flax fibers with a developed machine prototype. The determined results are necessary as a database to develop a simple machine for helping the Egyptian farmers in the process of flax fiber separation. A proper prototype was fabricated at a locally workshop at Meet-Ali, Dakahleia Governorate. The determined technological properties of long flax fibers were:- fiber percentage, fiber length categories, fiber fineness, and fiber strength. These properties were investigated as affected by different machinery, and crop variables such as: separating drum speed (of 1.58, 3.52 and 8.21 m/s), straw feeding rate (of 2.0, 2.5 and 3.0 kg/ min)., and straw moisture content (of 8.42, 10.8 and 12.6 %,wb).
The gained results reveled that;
- The best performance of the developed machine prototype, with respect to long fiber percentage (14.32%),and to fiber length category(78.99 cm) were obtained at drum speed of 1.58 m/s, feeding rate of 120 kg/hr and straw moisture content of 8.42%.
- The best degree of fiber fineness (129.74 mm / mg) was accomplished drum speed of 8.21 m/s, feeding rate of 120 kg/hr and straw moisture content of 8.42%. While, the best fiber strength (27.14 tex /gr ),was associated with drum speed of 1.58 m/s feeding rate of 180 kg/hr and straw moisture content of 12.6%.
https://jssae.journals.ekb.eg/article_90299_4de4249e0e991045adaae7cb6201bfdd.pdf
2009-03-01
2443
2454
10.21608/jssae.2009.90299
M.M.
Abou-Habaga
1
Dept. of Agric. Eng., Fac. of Agric., Mansoura Univ.
AUTHOR
M.H.M.
Abou-ELNaga
2
Agric. Eng. Res. Institute, Agric. Res. Center
AUTHOR
M.M.
Ismail
3
Agric. Eng. Res. Institute, Agric. Res. Center
AUTHOR
ORIGINAL_ARTICLE
ENERGY AND COST REQUIRMENTS OF A DEVELOPED SEPARATING MACHINE FOR FLAX FIBER
The aim of this work is to estimate the energy and cost requirements for a developed machine of flax fibers separation. This machine was fabricated in a locally workshop at Meet - Ali - Dakahleia Governorate and testing in Tag EL- EZZ Agricultural Research Station, Dakahleia governorate The determined properties of performance machine were:- separating percentage of flax fibers, the energy and cost requirments.These parameters were investigated as affected by different machinery, and crop variables such as: separating drum speed (of 1.58, 3.52 and 8.21 m/s),straw feeding rate (of 2.0, 2.5 and 3.0 kg/ min).,and straw moisture content (of 8.42, 10.8 and 12.6 %,wb).
The results indicated that;
- The best performance of a developed machine for separating percentage of flax fiber 75.7% were obtained at drum speed of 8.21 m/s, feeding rate of 120 kg/hr and straw moisture content of 8.42%.
- The lowest values of energy requirements for separate one ton of fiber flax 13.94 kW.h/ton were obtained at drum speed of 1.58 m/s, feeding rate of 180 kg/hr and straw moisture content of 8.42%
- The lowest values of cost requirement for separate one ton of straw flax 54.33 L.E/ton were obtained at drum speed of 1.58 m/s, feeding rate of 180 kg/hr and straw moisture content of 8.42%.
https://jssae.journals.ekb.eg/article_90300_bee593f1430b31ccbf014f0fd884a66c.pdf
2009-03-01
2455
2467
10.21608/jssae.2009.90300
M. M.
Abou-Habaga
1
Agric. Eng. Dept., Fac. of Agric., Mansoura Univ.
AUTHOR
M. H. M.
Abou-ELNaga
2
Agric. Engineer, Agric. Eng. Res. Institute, Agric. Res. Center
AUTHOR
M. M.
Ismail
3
Agric. Engineer, Agric. Eng. Res. Institute, Agric. Res. Center
AUTHOR
ORIGINAL_ARTICLE
CHEMICAL AND MINERALOGICAL FEATURES OF THE SHALE DEPOSITS IN ABO-THOR REGION, SOUTH WEST SINAI PENINSULA
The current investigation was conducted to estimate the chemical mineralogical characteristics of shale deposits of Abo-Thor area, south west of Sinai Peninsula with the aim of determining the most suitable use of these shale deposits. X- ray diffraction pattern of the clay fraction of the sample revealed the dominance of kaolinite mineral followed by hydrous mica (illite), while the accessory minerals were dominated by quartz. The textural class of the investigated sample was a sandy clay loam of about 17.25% clay, 24.95% silt and 57.8% sand. The EC was excessively high (38.2dSm), the soluble cations were dominated by Na+ and Mg2+, while the soluble anions were dominated by Cl-. Percentages of the major oxides of SiO2, Al2O3, Fe2O3, TiO2, MgO, CaO, Na2O, K2O, P2O5 were 27.5, 11.7, 18.2, 0.22, 13.3, 4.9, 2.2, 1.4 and 0.4%, respectively.
Thus, the aforementioned results indicate that the investigated shale deposits are more suitable for industrial purposes such as civil engineering works.
https://jssae.journals.ekb.eg/article_90452_b49bef4aa03c989bb3a36be3d0b11f3f.pdf
2009-03-01
2469
2476
10.21608/jssae.2009.90452
H.
Abbas
1
Dept. of Soil, Fac. of Agric., Moshtohor, Benha Univ.,
AUTHOR
H.
Hassona
2
Water and Environment Research Institute (ARC),
AUTHOR
Fadia
Ahamed
3
Nuclear Material Authority (NMA)
AUTHOR
R. A. E.
Abdel-Gawad
4
Nuclear Material Authority (NMA)
AUTHOR
ORIGINAL_ARTICLE
COMBINED EFFECT OF CROP TYPES, MICROBIAL INOCULANTS AND N FERTILIZER RATES ON AVAILABILITY OF NITROGEN
The present study was done in a pot experiment at Faculty of Agriculture, MonsouraUniversity during summer 2007 to study the combined effect of crop types, microbial inoculants and N fertilizer rates on availability and uptake of nitrogen at different days after planting (DAP). Randomized complete block design with three replicates was performed. The first factor was arranged for 3 crops i.e; rice (Oryza sativa) cv. Sakha 101, tomato (Lycopersicon esculentum., mill) cv. Super Merry Mand and cowpea (Vigna unguiculata L. Walp) cv. Karim seeds, The second factor (Microbial inoculants); (Non-inoculated – Inoculated with blue green algae) with the rice; non-inoculated – Inoculated with nitrobin for tomato crop and non-inoculated – inoculated with rhizobium for cowpea crop and the pollinating of the seeds before planting. Finally, the third factor was occupied with 3 nitrogen fertilizer rates (control, half and all recommended dose of N according recommended doses for cultivated crops.
The obtained results show as the following;
- Data illustrate that except 35 DAP for dry shoot and 70 and 105 DAP for dry root there are significant differences between average of dry shoots g pot-1 at 70 and 105 DAP and as affected by affected by crop types i.e. (rice, cowpea and tomato crops), inoculations and N rates at different plant growth.
- Statistical analysis reveal that there are no significant differences between average of N concentration in shoots at 35and 105DAP except 70 DAP meanwhile, there are no significant differences between average of N concentrations % in roots at 35 and 70 DAP except at 105 DAP as affected by crop types i.e.( rice, cowpea and tomato crops), inoculations and N rates at different plant growth. Generally, the highest mean values of dry shoot, roots and yield and N concentration (%) were obtained from all nitrogen dose + inoculated with Rhizobia + cowpea. Meanwhile, the lowest mean values of fresh shoots were obtained from untreated with nitrogen + untreated with inoculation + tomato.
- It is evident that the highest mean values of utilization efficiency % of applied of nitrogen readings were attained due to all nitrogen doses + inoculated with Rhizobia + cowpea. On the other hand, the lowest means were obtained from half N doses + untreated with inoculation + rice.
https://jssae.journals.ekb.eg/article_90455_5d0ceac453ff252126ce6460689c161d.pdf
2009-03-01
2477
2489
10.21608/jssae.2009.90455
Crop types
bioinoculants
N rates
Kh.
El-Hamdi
1
Soil Sci. Dept., Fac. of Agric., Mansoura Univ., Egypt.
AUTHOR
E. M.
Selim
2
Soil & Water use Dept., National Research Centre, Dokki, Cairo. Egypt
AUTHOR
Huda
Hussien
3
Soil Sci. Dept., Fac. of Agric., Mansoura Univ., Egypt.
AUTHOR
ORIGINAL_ARTICLE
THE UTILIZATION OF THE PICK UP MACHINE TO OVER COME THE FIELD RESIDUES
The aim of the present study has been concerned with a particular problem, associated with the pickup drum of the balers. That aim was seem to be achieved through developing a new design for the pickup drum, which its idea depend on using the picker chains and claw elevator chains instead of using the usual tines in the currently balers in the minister of the agriculture. This investigation carried out to study the effect of the engineering parameters of the four rotation speeds for the double job units(pickup plus elevating straw) for the proposed design, three of chassis tilt angles, three of straw feed rates and three levels of straw holder heights on the straw elevated efficiency and loss percentage for the proposed design. Also evaluate the machine performance by determining the machine field capacity and productivity.
The results indicated that the best value of straw elevated quantity was 7.075 kg/min, which obtained at 102 rpm rotation speed of the combined units and straw feed rate 4 kg/min. For increasing the straw holder's heights from 0 to 2 cm increases the field capacity from 0.058 fed/h to 0.086 fed/h at decreasing the chassis tilt angles from 36 to 28 degree. Also increasing the straw holder's heights from 2 to 4 cm increases the field capacity from 0.06 to 0.096 fed/h at increasing tilt angles from 28 and 36 degree.
https://jssae.journals.ekb.eg/article_90457_5744ae2998e6c66af44f9f8a5ba69552.pdf
2009-03-01
2491
2502
10.21608/jssae.2009.90457
Z.E.
Ismail
1
Agric. Eng. Fac. of Agric. Mansoura Unive.
AUTHOR
E. H.
El-Hanfy
2
Inst. For Efficient Productivity, Zagazig Univ. Egypt.
AUTHOR
A.S.
Elsayed
3
Agric. Eng. Fac. of Agric. Mansoura Unive.
AUTHOR
ORIGINAL_ARTICLE
SQUASH PRODUCTION USING CONTINUOUS AND SURGE DRIP IRRIGATION
The effect of irrigation techniques (surge and continuous drip) and two irrigation water levels of crop water requirements (100% and 80% of CWR) on squash production in new lands were investigated.
The results indicated that wetted areas increased by increasing the irrigation water level. The highest value of yield (5893 kg/fed.) was obtained from T4 (surge irrigation with 100% of crop water requirements with 45 min irrigation cut-off). Maximum water use efficiency value (7.38 kg/m3) was recorded with T9 and T10 (surge irrigation, 80% of crop water requirements with 45 min and 60 min irrigation cut-off resp.)
https://jssae.journals.ekb.eg/article_90459_23ed6847f69ca30530c0bc8dcc13780d.pdf
2009-03-01
2503
2513
10.21608/jssae.2009.90459
M. A.
El-Adl
1
Agric. Eng . Dept ., Fac. of Agric., Mansoura Univ.
AUTHOR
ORIGINAL_ARTICLE
EVALUATION OF GROWTH AND YIELD OF WHEAT AS AFFECTED BY WATER SALINITY IN COMBINATION WITH SOME SOIL PROPERTIES
Two field experiments were conducted during the successive two seasons of 2006/2007 and 2007/2008 to evaluate the effect of irrigation with saline water in combination with soils different in their soil properties (sandy clay loam and loamy sand ) on chemical properties of soil and growth and yield of wheat plant. Results concluded that, soil electrical conductivity and concentration of most cations and anions were increased as a result of irrigation with saline water. The increase of soil EC was more pronounced in sandy clay loam soil than in the loamy sand soil in spite of that the two soils were irrigated with the same source of water. Also, results revealed that irrigation water salinity affected all wheat growth and yield parameters.
https://jssae.journals.ekb.eg/article_90461_61f2c999b6a1e9f3bb7d2f67874835c5.pdf
2009-03-01
2515
2524
10.21608/jssae.2009.90461
A. A.
Abo-Baker
1
Soil and Water Dept., Faculty of Agric., Qena South Valley University
AUTHOR
ORIGINAL_ARTICLE
IMPROVEMENT OF FODDER BEET PRODUCTIVITY AND QUALITY USING GYPSUM AND POTASSIUM FERTILIZER IN ALKALINE SALINE AFFECTED SOILS
Two field experiments were carried out at the Experimental Farm of El-Serw St., Damietta Governorate during 2006/2007and 2007/2008 winter seasons on fodder beet (Beta vulgaris c.v. Vorochenger) to study the effect of gypsum and potassium fertilizer on yield and quality of fodder beet. The study included four gypsum levels i.e. zero (control), 5, 10 and 15 ton /fad. and four potassium fertilizer levels (zero (control), 36, 72 and 108 kg K2O/fad.). The experimental design was strip plot design with three replicates. Significant differences were recorded between different treatments and the treatment which received 15 tons gypsum/fad. and 108 kg K/fad. surpassed the other treatments in all the growth characters of fodder beet plants e.g. root length, root diameter, fresh and dry yield of roots and foliages. The same treatment was superior in quality characteristics, crude protein, ash and digestible crude protein but it gave the lowest value of crude fiber and total digestible nutrients. Meanwhile the same treatment was superior in nitrogen content but it gave the lowest values of phosphorus and potassium.
It may be recommended that adding gypsum at a rate of 15 ton/fad and 108 kg K2O/fed improved fodder beet productivity under alkaline saline affected soils.
https://jssae.journals.ekb.eg/article_90463_7d8ef5da22de2a4af16cdec9c2909eea.pdf
2009-03-01
2525
2535
10.21608/jssae.2009.90463
Fodder beet
gypsum
Potassium Fertilizer
yield and quality
Sh. A.
Abo El-Goud
1
Forage Crops Res. Dept., FCRI, ARC, Giza, Egypt.
AUTHOR
T.K.
AbdEl- Aziz
2
Forage Crops Res. Dept., FCRI, ARC, Giza, Egypt.
AUTHOR
A.M.
El-Ghamry
3
Soils Dept., Fac. Agric. Mansoura Univ., Egypt.
AUTHOR
ORIGINAL_ARTICLE
WATER USE EFFICIENCY OF WHEAT UNDER DRIP IRRIGATION SYSTEMS AT AL – MAGHARA AREA, NORTH SINAI, EGYPT.
A field experiment was conducted during 2004/2005 season in El – Maghara Research Station, about 90 Km South El-Arish city, North Sinai Governorate, Egypt to study water use efficiency of three wheat varieties (i.e. Sakha 8 , Giza 7 and Giza 69) as affected by four irrigation applied rates by means of adding 4 L/h – 8 L/h on one line and on two lines. Statistically Split – Split plot design was used.
The results revealed that grain and straw yields of wheat were increased by irrigating with drip irrigation on the two lines of laterals GR with 4 L/h application rate. Meanwhile, the variety Giza 7 was superior in grain and straw yields compared with the other two varieties. Seasonal amount of water applied for wheat crop was about 2087 m3/fed, as calculated by Penman – Montieth meteorological equation. Moreover, the highest grain yields were 2145, 2120 and 2085 Kg/fed. for Giza 7, Sakha 8 and Giza 69, respectively with the two lines of 4 L/h application rate. Water use efficiency for the three varieties expressed as Kg/m3 of water consumed was increased using (S3 = 4 L/h on 2 lines) treatment and the highest WUE values were 1.20, 1.17 & 1.13 Kg/m3 for Giza 7, Sakha 8 and Giza 69, respectively.
https://jssae.journals.ekb.eg/article_90464_0311bb5faf90d7021d72a37f958c8110.pdf
2009-03-01
2537
2546
10.21608/jssae.2009.90464
water use efficiency
water consumptive use
drip irrigation rate
Wheat cultivars (i.e. Giza 7
Giza 69 and Sakha 8)
G.
Abd El-Rahman
1
Soil Physics and Chemistry Department, Desert Research Center, El-Mataria, Cairo, Egypt.
AUTHOR
ORIGINAL_ARTICLE
EXPERIMENTAL INVESTIGATION OF A SOLAR STILL COUPLED WITH A FLAT-PLATE COLLECTOR
The objective of the present study was to investigate the possibility of developing and improving a basin-type solar still under local conditions. Basin-type solar still was connected with flat-plate collector to rise the temperature of saline water and tested with four modes of operation: (1) underground water feed, 2500 ppm, with the still operating alone, (2) underground water feed of the same salinity, with the still connected to the collector during daylight hours from 7 am to 6 pm, (3) saline water feed, 35000 ppm, with the still operating alone and (4) saline water feed of the same salinity, with the still connected to the collector during daylight hours from 7 am to 6 pm. Intensity of solar radiation, temperatures and distilled water productions were measured for several days at various operating conditions. The obtained results showed that the mass of distilled water production using augmentation was increased by 32 % in the case of underground water feed and by 29 % in the case of salt water feed. It was concluded that the solar still which connected with a flat-plate collector could be an effective approach for solar distillation process with high productivity under Egyptian conditions.
https://jssae.journals.ekb.eg/article_90466_8987df4c9f38d9335c8d710054e6465e.pdf
2009-03-01
2547
2556
10.21608/jssae.2009.90466
Solar still
saline water
Flat-plate solar collector
productivity
I. H.
El-Sheikh
1
Agric. Engineering Dept., Fac. of Agric., Suez-Canal Uni., Egypt
AUTHOR