eng
Mansoura University, Faculty of Agriculture
Journal of Soil Sciences and Agricultural Engineering
2090-3685
2090-3766
2020-04-01
11
4
99
103
10.21608/jssae.2020.96012
96012
Original Article
Comparing the Relationship of Different Drip Irrigation Uniformity Parameters with Crop Yield
M. Elnemr
moknemr@du.edu.eg
1
A. Amer
2
Department of Agricultural Engineering, Faculty of Agriculture, Damietta University. Egypt.
Department of Agricultural Engineering, Faculty of Agriculture, Damietta University. Egypt.
Drip irrigation system has the ability to apply water over the field uniformly. Uniformity of drip irrigation can be measured through many parameters. Uniformity is one of the procedures which should be considered in drip irrigation design and management to gain the maximum possible crop yield. The objective of this study was to investigate the effect of some uniformity parameters including Christiansen’s uniformity coefficient (UC), distribution uniformity (DU), Manufacturing coefficient of variation (CVf), and emission uniformity (EU) on crop yield and water productivity, in addition to evaluate the strength of the relationship between each of studied uniformity parameter and crop yield. Four operating pressure heads 5, 10, 15, and 20m were used to operate the irrigation system to make the required change in drip irrigation system uniformity level. The study included two crops which were lettuce and turnip. Results indicated that increasing drip irrigation system uniformity will lead to increase crop yield and water productivity of both crops. Values of correlation coefficient (r) were less than 0.5 for all uniformity parameters when correlated to crop yield. This indicated that uniformity might not be the most important factor representing the quantity of crop yield though its importance. According to the values of the (r) resulted from the relationship between each uniformity parameter and crop yield; EU had the strongest effect on crop yield. The study recommended modeling the relationship between drip irrigation uniformity and crop yield basing on EU.
https://jssae.journals.ekb.eg/article_96012_9dd485f93f4a6b3491f0da2b9be06cb6.pdf
Crop yield
Drip irrigation
Parameters
relationship
Uniformity
yield
eng
Mansoura University, Faculty of Agriculture
Journal of Soil Sciences and Agricultural Engineering
2090-3685
2090-3766
2020-04-01
11
4
105
111
10.21608/jssae.2020.96013
96013
Original Article
Developed Equipment for Seed Coating of some Crops
A. Obaia
1
M. Al-Rajhi
moh.elrajhi@yahoo.com
2
Y. Yusuf
3
M. Tantawy
4
Agriculture Engineering Research Institute, AEnRI, ARC. El-Dokki, Giza, Egypt
Agr. Eng. Res. Institute, ARC, Dokki, Giza, Egypt
Agriculture Engineering Research Institute, AEnRI, ARC. El-Dokki, Giza, Egypt
Agriculture Engineering Research Institute, AEnRI, ARC. El-Dokki, Giza, Egypt
This study was carried out to design simple equipment for seed coating using mixture from organic and inorganic filler. The experiments were conducted at El-Serw agricultural research station – Damietta governorate – Egypt at season 2019. The coating equipment consists of main frame, spinning as coating unit, power source and power transmutation unit. Experiments were run with a small batch processing capability. Locally available mixture of soft compost and calcium peroxide were tried and tested for possible application as coating material at coating unit tilt angles (20, 40 and 60°); rotating speeds (40, 60, 80 and 100 rpm) and coating times (3, 6, 9 and 12 minutes). The evaluation included two types of seeds (radish and sugar beet). Results indicated that germination, duplicity, productivity, weight of 1000 coated seed, static coefficient of friction and repose angle were (82 and 85 %); (6.1 and 4.8 %); (6.9 and 9.5 kg/h.); (36 and 43 gram); (0.50, and 0.42); and (31 and 23°) at tilt angle of 40°, rotating speed of 80 rpm and 3 min. for radish and sugar beet, respectively. At field experiment with planting sugar beet it was needed about 2.0 – 2.5 kg/fed substitutional about 4 – 4.5 kg/fed in traditional method. That save about 50% amount of seeds.
https://jssae.journals.ekb.eg/article_96013_5c9040c3afaa5fb9cbbec9c8775d9990.pdf
Seed coating
soft compost
Germination
duplicity
eng
Mansoura University, Faculty of Agriculture
Journal of Soil Sciences and Agricultural Engineering
2090-3685
2090-3766
2020-04-01
11
4
113
119
10.21608/jssae.2020.96014
96014
Original Article
Development of the Seed Drill to Suit Planting in Wet Soil
W. El-Fakhrany
walied7914@gmail.com
1
M. Aboegela
2
S. Shalaby
3
Agric. Eng.Res. Inst., A. R. C.
Agric. Eng.Res. Inst., A. R. C.
Agric. Eng.Res. Inst., A. R. C.
In this study, the seed drill with double disk furrow openers was developed to suit planting in wet soil (Heraty sowing) by adding an auxiliary furrow opener, disk cleaning blade and soil firming roller. The performance of the developed seed drill was evaluated at different planting forward speeds of 1.8, 2.3, 3.1, and 4.2 km/h; different sowing depth of 5, 6 and 7 cm; and two different soil moisture content of 34.5 and 31.1% (d.b.). The emergence ratio, emergence period, seed scattering, slippage ratio were measured, and also the required power, consumed energy and total cost were estimated. The obtained results revealed that the developed seed drill can used for sowing in wet soil (Heraty sowing) at planting forward speed not exceed a limit of 2.3 km/h, sowing depth ranged between 5 - 6 cm and soil moisture content not exceed 31.1% (d.b.).
https://jssae.journals.ekb.eg/article_96014_d41d8cd98f00b204e9800998ecf8427e.pdf
Seed drill
double disk furrow opener
Heraty sowing
Soil moisture content
eng
Mansoura University, Faculty of Agriculture
Journal of Soil Sciences and Agricultural Engineering
2090-3685
2090-3766
2020-04-01
11
4
121
128
10.21608/jssae.2020.97558
97558
Original Article
Surface and Subsurface Drip Irrigation Improving to Cultivate Fennel Plants at Old Land in Nile Valley of Egypt
A. Mohammed
ahmedsalahhassan1@yahoo.com
1
A. El-Gendy
2
E. Omer
3
Agric. Eng. Res. Inst. (AEnRI), Agric. Res. Center (ARC), Egypt, P. O. Box 256, Dokki -Giza - Egypt
Medicinal and Aromatic Plants Research Department, National Research Center, 33 El Bohouth St., Dokki, Giza 12622, Egypt
Medicinal and Aromatic Plants Research Department, National Research Center, 33 El Bohouth St., Dokki, Giza 12622, Egypt
The object of this study is to improve irrigation system in the old land in Nile Valley in Egypt to diminish the water lost in irrigation process by using the systems of Surface Drip Irrigation (SDI) and Subsurface Drip Irrigation (SSDI). The research also, study the effect of previous systems and drought stress on Fennel growth, yield, essential-oil "percentages and yield" and some chemical constituents in two successes seasons. The results showed that in both seasons, SSDI irrigation system increased all characters of vegetative growth, seed yield and essential-oil percentage and yield, compared with the obtained with SDI system. The results also pointed to drought stress inspired a significant decline in all of the growth parameters and the yield of essential-oil at compared with control in SDI system, while the opposite occurred in the SSDI system where 85 % from ETp treatment gave the highest values in growth and essential-oil compared with other treatments. The water productivity (kg/m3) in SSDI system gave the highest values under the same conditions especially at85% of total water applied, in both seasons. Fifteen essential-oil components were recognized about99.81-99.95 % of total contents of essential-oil. The major essential-oil components were Estragol (71.12-75.80 %), D-Limonene (10.18-15.16 %), and Fenchone (5.46-11.45 %).The percentages of these compounds unclear affected by irrigation system and water applied treatments.
https://jssae.journals.ekb.eg/article_97558_da6a20804d3cefba8dddc13adb2e7aef.pdf
subsurface drip irrigation
surface drip irrigation
Evapotranspiration
Foeniculum vulgare
Water requirement
irrigation water productivity