Elmesery, A., Zabady, F., Fayed, M. (2011). ULTRA LOW DRIP IRRIGATION EFFECT ON WATER DISTRIBUTION IN SOILS AND SQUASH PRODUCTION. test, 28(4), 929-946. doi: 10.21608/mjae.2011.102602
A. A. M. Elmesery; F. E. Zabady; M. H. Fayed. "ULTRA LOW DRIP IRRIGATION EFFECT ON WATER DISTRIBUTION IN SOILS AND SQUASH PRODUCTION". test, 28, 4, 2011, 929-946. doi: 10.21608/mjae.2011.102602
Elmesery, A., Zabady, F., Fayed, M. (2011). 'ULTRA LOW DRIP IRRIGATION EFFECT ON WATER DISTRIBUTION IN SOILS AND SQUASH PRODUCTION', test, 28(4), pp. 929-946. doi: 10.21608/mjae.2011.102602
Elmesery, A., Zabady, F., Fayed, M. ULTRA LOW DRIP IRRIGATION EFFECT ON WATER DISTRIBUTION IN SOILS AND SQUASH PRODUCTION. test, 2011; 28(4): 929-946. doi: 10.21608/mjae.2011.102602

ULTRA LOW DRIP IRRIGATION EFFECT ON WATER DISTRIBUTION IN SOILS AND SQUASH PRODUCTION

Misr Journal of Agricultural Engineering
Article 11, Volume 28, Issue 4, October 2011, Pages 929-946    PDF (1.72 M)
Document Type: Original Article
DOI: 10.21608/mjae.2011.102602
Authors
A. A. M. Elmesery1; F. E. Zabady2; M. H. Fayed3
1Assoc. Prof., Agric. Eng. Dept., Fac. of Agric., Al-Azhar Univ., Egypt.
2Lect. Agric. Eng. Dept., Fac. of Agric., Al-Azhar Univ., Egypt.
3Demonstrator. Agric. Eng. Dept., Fac. of Agric., Al-Azhar Univ., Egypt.
Abstract
Ultra low drip irrigation ''ULDI'' system is a new aspect of micro irrigation.It is known as ''minute or ultra-low flow- rate'' irrigation. This method involves applying water at a very low rate, even lower than the natural soil water intake capacity. Flow rate from minute or ultra-low irrigation system is usually 10 times less than conventional emitters (0.2 L/h).Also; ''ULDI'' gets a continuous moisture and oxygen (air) supply under "Field Capacity" conditions. The first aim of this study is determine the wetting pattern on soil (ClayandSandy) at different application rates (0.25, 0.5, 1.2, and 2 L/h) and different application times. The second aim is investigated in ''ULDI'' effect on squash production. The results showed the following relationships to describe wetted front advance (width ''w'', depth ''d'', and diagonal ''z''): where α: is in any direction (w, d, or z),c, c1, c2, and c3: are constants that depend on (α) direction, t: is application time (h), K: is hydraulic conductivity (cm/h), and q: is emitter discharge (L/h) . The results of field experiments indicated that the increasing ratio of squash yield when using 0.25 L/h treatment was 41.17 %.
References
Assouline, S., S. Cohen, D. Meerbach, T. Harodi, and M. Rosner.(2002).Microdrip irrigation of field crops: Effect on yield, water uptake, and drainage in sweet corn. Soil Sci. Soc. Am. J. 66:228–235.

Aragues, R., E. Playan, R. Ortiz and A. Royo, 1999.A new drip-injection irrigation system (DIS) for cropsalt tolerance evaluation. Soil Sci. Soc. Am. J,. 63: 1397-1404.

Awady, M. N. and Mostafa, M., (1975). Infiltration of water from tricklers into loamy soils, Egypt J. Soil Sci, Special Issue, :p. 209 – 214.

Elmesery, A. A. M., (2011). Water movement in soil under micro trickle irrigation system. Misr.J. Agr. Eng. Vol. 28(3), :p. 612-629.

FAO (1998).Crop evapotranspiration – Guidelines for computing crop water requirements.

Koenig, E. (1997). Methods of micro-irrigation with very small discharges and particularly low application rates(In Hebrew.).WaterIrrig. 365:32–38, (cited fromAssouline, 2002 and Badr, 2007).

Lubars, P. and Richard, M., (2008).

http://www.scribd.com/doc/8145273/p13

Sne, M., (2009).Micro Irrigation Technology and Application.Second version, Shirley Oren, Publications' Coordinator, CINADCO.

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