Impact of Some Tillage System on Soil Cracks of Northern Gedarif, Sudan

Elwaleed Mohamed Elamin, Mekki Abd Elatif Omer, Imad Eldin Ahmed Ali

Abstract


The study was carried out during three consecutive seasons 2005/06 2006/07and 2007/08 under rain fed condition to investigate the effect of some tillage systems on soil cracks. The study was conducted in  the pilot farm of the Faculty of Agricultural Sciences and Environment , University of Gedarif in the Northern area of Gedarif State  ( Latitude 12° 45′ N, Longitude 35° 15′ E, Elevation 540m above mean sea level ).  The experimental work laid out on randomize complete block design (RCBD) with three replications of the treatments   tillage systems: No tillage or zero tillage (ZT), Offset disc as post harvest tillage (PHT) and Wide Level Disc, which farmers practice, as control (WLD) . Rain gauge reading for total recorded annual rainfall were  368.1mm (2005), 463.6 mm (2006) and 495.2 mm  (2007)  which was spread over 32, 30 and 32  rainy days during the first , second and third growing seasons, respectively. The results showed that the second season had the best distribution pattern. It recorded  15%, 36%, 26% and 5%  for July, August, September and October, respectively  compared to 24% ,53% 13% and 2%  ; and 29% ,41% , 21% and 1% for first and third seasons in the same months. The maximum measured values for crack were 91 and 81cm for the depth and 8.7 and 8.5 cm for the width recorded during May for the zero tillage and Wide Level Disc treatments respectively. The cracking areas ranged between  0.32 m²/ m² to 0.49 m²/ m² for ZT and0.32 m²/m² to 0.46 m²/m² for WLD, whereas PHT they ranged from 0.28 m²/m² to 0.36 m²/m². For most measurements throughout the three monitoring seasons, the ZT constantly showed significantly higher values of crack parameters over WLD and PHT.

Keywords


Soil cracks; Post harvest tillage; Wide Level Disc

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References


Brousurijk, H. 1991. Dry, cracking and subsidence of a clay soil in alysimeter. Soil Sci.152:92-99.

Flower, M., and Lal, R., 1999. Axle load and tillage effects on the Shrinkage characteristics of a Mollic Ochragulf in North West Ohio Soil and Tillage Research 50: 251-258.

Harris, G.L., Howase, K.R., and Peper. T.J., 1993. Effect of moiling and cultivation on soil – water and runoff from a drained clay soil. Agricultural Water Management 23(2): 161-180. Novak, V. 1999. Soil-crack characteristics-estimation methods applied to heavy soils in the NOPEX area. Agricultural and Forest Meteorology 98-99 pp 501-507.

Ringrose- Vasoge, A.J., and Sanidad, W.B. 1996. A method for measuring the development of surface cracks in soils: application to crack development after low land rice. Geoderma 71:245-261.

Ritchine, J.T., and Adams, J.E. 1974. Field measurement of evaporation from shrinkages cracks. Soil Society of American Journal 38:131134.

Saeed, A.B., and Eissa, H.Y. 2007. Effect of some tillage and seeding methods on the yield of grain sorghum under mechanized rainfall condition. Sudan Journal of Agricultural Research, Wad Madni, Sudan 8: 45-46.

Selim, H.M. and Kirkham, D. 1970. Soil temperature and water content changes during drying and influenced by cracks: laboratory experimental. Soil Science of America Proceedings 34: 565-569.

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Strik, G. 1954. Some aspects of soil shrinkage and the effect of racking upon water entry into the soil. Aus. J. Agric. Res. 5: 379-290.

Strooshijder, L., 1976. Infiltration and redistribution of water in cracking upon water entry into the soils. Soil .Sci.Soc. Am. J., 44:352-358.

Yassoglou, N., Kosmas, C.S., Moustakas, N., Tzianis, E., and Ddanalatos, N.G. 1994. Cracking in recent alluvial soils are related to easily determined soil properties. GEODERMA 63: 289- 294.


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